Source: UNIVERSITY OF ILLINOIS submitted to NRP
NATIONAL ATMOSPHERIC DEPOSITION PROGRAM NRSP-3, COORDINATION AND CHEMICAL ANALYSIS
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
COMPLETE
Funding Source
OTHER GRANTS
Reporting Frequency
Annual
Accession No.
0210627
Grant No.
2007-39138-18202
Cumulative Award Amt.
(N/A)
Proposal No.
2007-03769
Multistate No.
(N/A)
Project Start Date
Aug 1, 2007
Project End Date
Jul 31, 2008
Grant Year
2007
Program Code
[MG.2]- (N/A)
Recipient Organization
UNIVERSITY OF ILLINOIS
2001 S. Lincoln Ave.
URBANA,IL 61801
Performing Department
Illinois State Water Survey
Non Technical Summary
Air quality and atmospheric deposition are among the nation's serious environmental concerns. The National Atmospheric Deposition Program provides quality-assured data and information in support of research on the exposure of managed and natural ecosystems and cultural resources to acidic compounds, nutrients, base cations, and mercury in the air and in atmospheric deposition.
Animal Health Component
20%
Research Effort Categories
Basic
80%
Applied
20%
Developmental
(N/A)
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
1410410200060%
1410410207030%
9027299310010%
Knowledge Area
902 - Administration of Projects and Programs; 141 - Air Resource Protection and Management;

Subject Of Investigation
7299 - Research equipment and methods, general/other; 0410 - Air;

Field Of Science
2070 - Meteorology and climatology; 2000 - Chemistry; 3100 - Management;
Goals / Objectives
The objectives of this cooperative agreement are (1) to coordinate the three National Atmospheric Deposition Program (NADP) atmospheric deposition networks: the National Trends Network (NTN), Mercury Deposition Network (MDN), and Atmospheric Integrated Research Monitoring Network (AIRMoN); (2) provide quality assurance to ensure that network operations are consistent with QA project plans and standard operational procedures; and (3) provide chemical analytical, site support, and data validation services for the NTN, AIRMoN, and MDN sites supported directly through this agreement.
Project Methods
The NADP Program Office, supported by this agreement, carries out its responsibilities with guidance from the NADP Executive Committee and Subcommittees. Representatives of State Agricultural Experiment Stations, universities, government agencies, and non-governmental organizations that sponsor NADP activities comprise these Committees and Subcommittees. The Program Office also works closely with the CSREES National Program Leader and with advisors from the U.S. Geological Survey, lead agency for the NTN, and the National Oceanic and Atmospheric Administration, lead agency for the AIRMoN. The cooperative nature of the NADP requires that the Program Office agree to modify technical and administrative procedures, when recommended and approved by the NADP Executive Committee. All work performed under this cooperative agreement is conducted in accordance with the "NADP Quality Management Plan." Network data and information are stored and managed in the NADP data base, maintained by the Program Office. Use and distribution of NADP data are not restricted in any way, and the data are Internet-accessible to government and non-government scientists, policy-makers, educators, students, and the general public.

Progress 08/01/07 to 07/31/08

Outputs
OUTPUTS: Activities: During FY07, the NTN coordinated the actives at 253 NTN stations. Sites collect precipitation-only samples weekly in 48 states, Puerto Rico, the Virgin Islands, and Canada (http://nadp.sws.uiuc.edu/sites/ntnmap.asp). The NTN provides the only long-term nationwide record of wet deposition in the United States. During FY07, this project coordinated and analyzed 13,608 samples across the network and delivered these results to the NADP database. Measured concentration and precipitation amounts, along with calculated deposition and quality assurance flags and ratings, can be retrieved online. The 7-site AIRMoN (http://nadp.sws.uiuc.edu/AIRMoN/) collects daily precipitation samples and supports research of atmospheric transport and removal of air pollutants, focusing on individual precipitation events. Event samples can be used for research and chemical "tracking" for source identification. During FY07, the AIRMoN coordinated and analyzed 1,173 samples, which were delivered to the NADP database. Additionally, the MDN has 112 sites (http://nadp.sws.uiuc.edu/mdn/), and offers the only regional measurements of mercury in North American precipitation. MDN data are used to quantify Hg deposition in areas where there are government fish or wildlife consumption advisories due to this toxic chemical. For FY07, this project coordinated and analyzed approximately 5,800 precipitation samples, with the data delivered to the NADP database. In addition, further refinement of SOPs and QAPs were conducted, all overseen by the network QA officer (available online). Two business meetings focused on work within the three NADP Subcommittees, Quality Assurance Advisory Group, and Executive Committee. The Technical Committee made important changes to streamline governance by eliminating redundancies in the decision-making process (http://nadp.sws.uiuc.edu/meetings/). These basic activities fulfilled the project objectives: (1) coordination of three networks, (2) quality assurance to ensure consistency, and (3) chemical analytical, site support, and data validation services for the sites supported directly through this agreement. Dissemination: Information is disseminated primarily through scientific presentations at the NADP fall meeting and data are provided through the Web site. NADP data is available at no charge via the Internet, which enables online retrieval of individual data points, seasonal and annual averages, trend plots, concentration and deposition maps, reports, manuals, and other data and information (http://nadp.sws.uiuc.edu). In FY07, we instituted new Web service updates, which should allow us to provide more information to more people over the next few years. Events: Our annual scientific meeting "NADP 2007: Wet and Dry Deposition Measurements: Do We Have the Total Picture" was held in Boulder, Colorado, on September 10-13, 2007. The meeting attracted more than 170 registered participants (our largest meeting to date) and featured 42 plenary and 36 poster presentations organized invited into six topical areas over two days. Direct review of topics is available at our website. PARTICIPANTS: Not relevant to this project. TARGET AUDIENCES: Not relevant to this project. PROJECT MODIFICATIONS: Not relevant to this project.

Impacts
NADP's principal outcomes and impacts on the broader scientific and educational communities are reflected in the perceived value of our data products. Value: In its 2005 (most recent) report to Congress, the National Acid Precipitation Assessment Program cited the NADP as the "primary air quality and atmospheric deposition monitoring program providing scientists and policymakers with robust data on the fate, transport, and deposition of air pollutants and on trends in acidic deposition and air quality in the United States." Our data was also recognized in recent reports of the Binational Air Quality Committee of the U.S.-Canada Air Quality Agreement, U.S. EPA, and U.S. Forest Service. Stimulating Research: Many peer-reviewed scientific articles use or reference NADP data and products. Ninety one articles from 2007 and Fifty six from 2008 (currently) are listed in the publications section. Our dataset and samples were used extensively in talks presented at our fall FY07 meeting. Two of five sessions focused on total nitrogen and mercury deposition to the biosphere (crops, forests, estuarine environments, etc.) (http://nadp.sws.uiuc.edu/lib/proceedings/NADPpro2007.pdf). Our organization and data have fostered new ideas for further research support, including: - NADP scientists initiated a low-cost atmospheric ammonia monitoring network with the intent of calculating ammonia dry deposition. Ammonia is causing great concern among agriculture and air pollution scientists. The network is currently operating (http://nadpweb.sws.uiuc.edu/nh3net/). - The NADP is collaborating with U.S. Department of Agriculture Cereal Disease Laboratory scientists to look for Soybean rust spores (SBR, Phakopsora pachyrhizi) in NADP samples (continuing in FY08). Polymerase chain reaction (PCR) methods are used to specifically identify SBR, which was confirmed in 9% of NADP samples tested. Atmospheric transport and deposition are key to the spread of and any surveillance for these types of damaging pathogens. - The USGS is developing a network for mercury deposition with litterfall at 12 MDN sites. Mercury mass transfer is being measured directly to waterbodies, agricultural and forested systems, etc., with leaves and litter fall. - A network is being developed to monitor atmospheric concentrations of mercury species and dry deposition rates. This, combined with MDN will provide total mercury deposition to a location. This network is currently operating (http://nadpweb.sws.uiuc.edu/amn/). Dissemination: Our Web site continues to be the primary data dissemination tool. This site received ~ 1.5 million Web page "hits," 90,000 unique visitors, and about 130,000 individual isopleth map views (2007). Users retrieved 24,554 data files during 15,000 sessions, a sharp increase over 2006. Mercury data is approximately 15% of all downloads. About 33% of users are from federal and state agencies, 33% from universities, 20% from K to 12 schools, and the remainder from other organizations. These statistics demonstrate that NADP continues to be relevant to the scientific and educational communities. Additionally, we have distributed 1000 of the NADP 2007 Annual Data Summaries.

Publications

  • Rhoades, C., Binkley, D., Oskarsson, H., and Stottlemyer, R. 2007. Soil nitrogen accretion along a floodplain terrace chronosequence in northwest Alaska: Influence of the nitrogen-fixing shrub Shepherdia canadensis. Ecoscience: 223-230.
  • Risch, M.R., 2007, Mercury in precipitation in Indiana, January 2001 December 2003: U.S. Geological Survey Scientific Investigations Report 2007-5063, 76 p., http://pubs.usgs.gov/sir/2007/5063/pdf/sir2007-5063_web.pdf
  • Risch, M.R., Prestbo, E.M., and Hawkins, L. 2007. Measurement of atmospheric mercury species with manual sampling and analysis methods in a case study in Indiana. Water, Air, and Soil Pollution 184:285-297.
  • Rodrigues, R.R., Mello, W.Z., and Aleandre, P.A. 2007. Atmospheric deposition of ammonium, nitrate and sulfate on the montane dense ombrophilous forest in Serra dos Orgaos, RJ. Quim. Nova. 30(8):1842-1848.
  • Rohrs-Richey, J.K., and Mulder, C.P.H. 2007. Effects of local changes in active layer and soil climate on seasonal foliar nitrogen concentrations of three boreal forest shrubs. Canadian J. Forest Research 37(2):383-394.
  • Seaver, G., and Kuzirian, A. 2007. Nitrate migration through groundwater, estuaries, and bays at climatic frequencies and scales. J. Coastal Research 23(4):1000-1009.
  • Sickles, J.E., and Shadwick, D.S. 2007. Effects of missing seasonal data on estimates of period means of dry and wet deposition. Atmospheric Environment 41:4931-4939.
  • Stavros, H.W., Bossart, G.D., Hulsey, T.C., Fair, P.A. 2007. Trace element concentrations in skin of free-ranging bottlenose dolphins (Tursiops truncatus) from the Southeast Atlantic Coast. Science of the Total Environment 388:300-315.
  • Sullivan, T.J., Cosby, B.J., Herlihy, A.T., Driscoll, C.T., Fernandez, I.J., McDonnell, T.C., Boylen, C.W., Nierzwicki-Bauer, S.A., and Snyder, K.U. 2007. Assessment of the extent to which intensively-studied lakes are representative of the Adirondack region and response to future changes in acidic deposition. Water Air Soil Pollut. 185:279-291.
  • Vijayaraghavan, K., Seigneur, C., Karamchandani, P., and Chen, S. 2007. Development and application of a multi-pollutant model for atmospheric mercury deposition. Journal of Applied Meteorology and Climatology 46:1341-1353.
  • Vogt, K.A., Vogt, D.J., Wargo, P.M., Tilley, J.P., Siccama, T.G., Kulmatiski, A., Sigurdardottir, R., and Ludwig, D. 2007. Nitrogen and calcium additions increase forest growth in Northeastern USA spruce-fir forests. Canadian J. Forest Research 37(9):1574-1585. Whalen, S.C., and DeBerardinis, J.T. 2007. Nitrogen mass balance in fields irrigated with liquid swine waste. Nutr. Cycl. Agroecosyst. 78:37-50, DOI 10.1007/s10705-006-9073-3.
  • Whitall, D., Bricker, S., Ferreira, J., Nobre, A.M., Simas, T., and Silva, M. 2007. Assessment of eutrophication in estuaries: Pressure state response and nitrogen source apportionment. Environ. Manage. 40:678-690, DOI 10.1007/s00267-005-0344-6.
  • Wiersma, G.B., Elvir, J.A., and Eckhoff, J.D. 2007. Forest vegetation monitoring and foliar chemistry of red spruce and red maple at Acadia National Park in Maine. Environ. Monit. Assess. 126:27-37, DOI 10.1007/s10661-006-9329-z.
  • Yamashita, K., Ito, F., Kameda, K., Holloway, T., and Johnston, M.P. 2007. Cost-effectiveness analysis of reducing the emission of nitrogen oxides in Asia. Water Air Soil Pollut.: Focus 7:357-369, DOI 10.1007/s11267-006-9097-3.
  • Baldigo, B.P., Lawrence, G.B., Bode, R.W., Simonin, H.A., Roy, K.M., and Smith, A.J. 2008. Impacts of acidification on macorinvertebrate communities in streams of the western Adirondack Mountains, New York, U.S.A.: Ecological Indicators, doi: 10.1016/j.ecolind.04.004.
  • Barco. J., Hogue, T.S., Curto, V., and Rademacher, L. 2008. Linking hydrology and stream geochemistry in urban fringe watersheds. J. Hydrology 360:31-47.
  • Baron, J.S. 2008. Interactions between atmospheric nitrogen deposition and climate change in the Colorado Front Range. Talking points editorial for environmentalresearchweb.org. http://environmentalresearchweb.org/cws/article/opinion/33501.
  • Baron, J.S., Allen, C.D., Fleishman, E., Gunderson, L., McKenzie, D.,Meyerson, L., Oropeza, J., and Stephenson, N. 2008. National parks. In: Preliminary review of adaptation options for climate-sensitive ecosystems and resources. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research [S.H. Julius, J.M. West (eds.), J.S. Baron, L.A. Joyce, B.D. Keller, M.A. Palmer, C.H. Peterson, and J.M. Scott (Authors)]. U.S. Environmental Protection Agency, Washington, DC, USA, pp. 4-1 to 4-68.
  • Biswas, A., Blum, J.D., and Keeler, G.J. 2008. Mercury storage in surface soils in a central Washington forest and estimated release during the 2001 Rex Creek Fire. Science of the Total Environment 404:129-138.
  • Boonstra, R., Desantis, L., Krebs, C.J., and Hik, D.S. 2008. Climate and nutrient influences on the growth of white spruce trees in the boreal forests of the Yukon. Climate Research 36:123-130, doi: 10.3354/cr00736.
  • Bosch, N.S., and Allan, J.D. 2008. The influence of impoundments on nutrient budgets in two catchments of Southeastern Michigan. Biogeochemistry 87:325-338.
  • Boynton, W.R., Hagy, J.D., Cornwell, J.C., Kemp, W.M., Greene, S.M., Owens, M.S., Baker, J.E., and Larsen, R.K. 2008. Nutrient budgets and management actions in the Patuxent River Estuary, Maryland. Estuaries and Coasts 31:623-651, DOI 10.1007/s12237-008-9052-9.
  • Burns, D.A., Riva-Murray, K., Bode, R.W., and Passy, S. 2008. Changes in stream chemistry and biology in response to reduced levels of acid deposition during 1987-2003 in the Neversink River Basin, Catskill Mountains. Ecological Indicators 8:191-203.
  • Butler, T.J., Cohen, M.D., Vermelyn, F.M., Likens, G.E., Schmeltz, D., & Artz, R.S. (2008. Regional precipitation mercury trends in the eastern USA, 1998-2005: declines in the Northeast and Midwest, no trend in the Southeast. Atmos. Environ. 42, 1582-1592.
  • Cain, M.L., Bowman, W.D., and Hacker, S.D. 2008. Ecology. Sinauer, Sunderland, MA.
  • Chen, L., Kost, D., and Dick, W.A. 2008. Petroleum coke circulating fluidized bed combustion product as a sulfur source for alfalfa. Communications in Soil Science and Plant Analysis 39:1993-2008, DOI: 10.1080/00103620802134826.
  • Choi, H.D., Sharac, T.J., and Holsen, T.M. 2008. Mercury deposition in the Adirondacks: A comparison between precipitation and throughfall. Atmospheric Environment 42:1818-1827.
  • Costanzaa, J.K., Marcinkoa, S.E., Goewertb, A.E., and Mitchella, C.E. 2008. Potential geographic distribution of atmospheric nitrogen deposition from intensive livestock production in North Carolina, USA. Science of the Total Environment 389:76-86.
  • Elliott, K.J., Vose, J.M., Knoepp, J.D., Johnson, D.W., Swank, W.T., and Jackson, W. 2008. Simulated effects of sulfur deposition on nutrient cycling in Class I wilderness areas. J. Environ. Qual. 37:1419-1431, doi:10.2134/jeq2007.0358.
  • Hudy, M., Thieling, T.M., Gillespie, N., and Smith, E.P. 2008. Distribution, status, and land use characteristics of subwatersheds within the native range of brook trout in the Eastern United States. North American J. Fisheries Management 28:1069-1085, DOI: 10.1577/M07-017.1.
  • Hutcheson, M.S., Smith, C.M., Wallace, G.T., Rose, J., Eddy, B., Sullivan, J., Pancorbo, O., and West, C.R. 2008. Freshwater fish mercury concentrations in a regionally high mercury deposition area. Water Air Soil Pollut. 191:15-31, DOI 10.1007/s11270-007-9604-9.
  • Hyfield, E.C.G., Day, J.W., Cable, J.E., and Justic, D. 2008. The impacts of re-introducing Mississippi River water on the hydrologic budget and nutrient inputs of a deltaic estuary. Ecological Engineering 32:347-359.
  • Inamdar, S.P., and Mitchell, M.J. 2008. Sulfate exports from multiple catchments in a glaciated forested watershed in western New York, USA. Environ. Monit. Assess. 139:227-245.
  • Kendall, C, Elliott EM, and Wankel, SD. 2007. Tracing Anthropogenic Inputs of Nitrogen to Ecosystems. In Stable Isotopes in Ecology and Environmental Science (2nd edition). Lajtha, K and Michener, RH (eds.) Blackwell Scientific Publications.
  • Enders, S.K., Pagani, M., Pantoja, S., Baron, J.S., Wolfe, A.P., Pedentchouk, N., and Nunez, L. 2008. Compound-specific stable isotopes of organic compounds from lake sediments track recent environmental changes in an alpine ecosystem, Rocky Mountain National Park (United States of America). Limnology and Oceanography 53(4):1468-1478.
  • Flint, C.M., Harrison, R.B., Strahm, B.D., and Adams, A.B. 2008. Nitrogen leaching from douglas-fir forests after urea fertilization. Environ. Qual. 37:1781-1788, doi:10.2134/jeq2007.0367.
  • Gardner, E.M., McKnight, D.M., Lewis, Jr., W.M., and Miller, M.P. 2008. Effects of nutrient enrichment on phytoplankton in an Alpine Lake, Colorado, U.S.A. Arctic, Antarctic, and Alpine Research 40(1):55-64.
  • Gauci, V., Dise, N.B., Howell, G., and Jenkins, M.E. 2008. Suppression of rice methane emission by sulfate deposition in simulated acid rain, J. Geophys. Res. 113, G00A07, doi:10.1029/2007JG000501.
  • Hales, H.C., and Ross, D. 2008. Drastic short-term changes in the isotopic composition of soil nitrate in forest soil samples. SSSAJ 72(6):1645-1652.
  • Harper, T.W., Brye, K.R., Daniel, T.C., Slaton, N.A., and Haggard, B.E. 2008. Land use effects on runoff and water quality on an Eastern Arkansas soil under simulated rainfall. Journal of Sustainable Agriculture 32(2):231-253.
  • Homyak, P.M., Yanai, R.D., Burns, D.A., Briggs, R.D., Germain, R.H., 2008. Nitrogen immobilization by wood chip application: Protecting water quality in a northern hardwood forest, Forest Ecology and Management 255: 2589-2601.
  • Lewis, G.P., and Likens, G.E. 2007. Changes in stream chemistry associated with insect defoliation in a Pennsylvania hemlock-hardwoods forest. Forest Ecology and Management 238:199-211.
  • Lindberg, S., Bullock, R., Ebinghaus, R., Engstrom, D., Feng, X., Fitzgerald, W., Pirrone, N., Prestbo, E., and Seigneur, C. 2007. A synthesis of progress and uncertainties in attributing the sources of mercury in deposition. Ambio. 36(1):19-32.
  • Porter, E., and Johnson, S. 2007. Translating science into policy: Using ecosystem thresholds to protect resources in Rocky Mountain National Park. Environmental Pollution 149:268-280.
  • Pryor, S.C., Spaulding, A.M., and Rauwolf, H. 2007. Evolution of the concentration of inorganic ions during the initial stages of precipitation events. Water Air Soil Pollut. 180:3-10, DOI 10.1007/s11270-006-9245-4.
  • Rosfjord, C., Webster, K., Kahl, J.S., Norton, S.A., Fernandez, I., and Herlihy, A. 2007. Anthropogenically-driven changes in chloride complicate interpretation of base cation trends in lakes recovering from acidic deposition. Environ. Sci. Technol. 41:7688-7693.
  • Scharenbroch, B.C., and Bockhein, J.G. 2008. The effects of gap disturbance on nitrogen cycling and retention in late-successional northern hardwood-hemlock forests. Biogeochemistry 87:231-245, DOI 10.1007/s10533-008-9180-0.
  • Shanley, J.B., Mast, M.A., Campbell, D.H., Aiken, G.R., Krabbenhoft, D.P., Hunt, R.J., Walker, J.F., Schuster, P.F., Chalmers, A., Aulenbach, B.T., Peters, N.E., Marvin-DiPasquale, M., Clow, D.W., and Shafer, M.M. 2008. Comparison of total mercury and methylmercury cycling at five sites using the small watershed approach. Environmental Pollution 154:143-154.
  • Driscoll, C.T., Evers, D., Lambert, K.F., Kamman, N., Holsen, T., Han, Y.J., Chen, C., Goodale, W., Butler, T., Clair, T., and Munson, R. 2007. Mercury matters: Linking mercury science with public policy in the Northeastern United States. Hubbard Brook Research Foundation. Science Links Publication 1(3).
  • Driscoll, C.T., Han, Y., Chen, C.Y., Evers, D.C., Lambert, K.F., Holsen, T.M., Kamman, N.C., and Munson, R.K. 2007. Mercury contamination in forest and freshwater ecosystems in the Northeastern United States. BioScience 57(1):17-28.
  • Evers, D.C., Han, Y., Driscoll, C.T., Kamman, N.C., Goodale, M.W., Lambert, K.F., Holsen, T.M., Chen, C.Y., Clair, T.A., and Butler, T. 2007. Biological hotspots in the Northeastern United States and Southeastern Canada. BioScience 57(1):29-43.
  • Engstrom, D.R., Balogh, S.J., & Swain, E.B. (2007). History of mercury inputs to Minnesota lakes; influences of watershed disturbance and localized atmospheric deposition. Limnol. Oceanogr. 52, 2467-2483.
  • Fenn, M.E., Geiser, L., Bachman, R., Blubaugh, T.J., and Bytnerowicz, A. 2007. Atmospheric deposition inputs and effects on lichen chemistry and indicator species in the Columbia River Gorge, USA. Environmental Pollution 146:77-91.
  • Fisher, L.S., Mays, P.A., and Wylie, C.L. 2007. An overview of nitrogen critical loads for policy makers, stakeholders, and industries in the United States. Water, Air & Soil Pollution 179(1-4):3-18, DOI 10.1007/s11270-006-9235-6.
  • Fryar, A.E., Thompson, K.E., Hendricks, S.P., and White, D.S. 2007. Groundwater flow and reservoir management in a tributary watershed along Kentucky Lake. J. Kentucky Academy of Science 68:11-23, DOI: 10.3101/1098-7096.
  • Fulkerson, M., Nnadi, F.N., and Chasar, L.S. 2007. Characterizing dry deposition of mercury in urban runoff. Water Air Soil Pollut. 185:21-32, DOI 10.1007/s11270-007-9396-y.
  • Gahl, M.K. 2007. Spatial and temporal patterns of amphibian disease in Acadia National Park wetlands. Ph.D Thesis, The University of Maine.
  • Gao, Y., Kennish, M.J., Manda, A., Guirk, M.C., and Lynn, F. 2007. Atmospheric nitrogen deposition to the New Jersey coastal waters and its implications. Ecological Applications 17(5) Supplement S41-S43.
  • Geiser, L.H., and Neitlich, P.N. 2007. Air pollution and climate gradients in Western Oregon and Washington indicated by epiphytic macrolichens. Environmental Pollution 145:203-218.
  • Goddard, M.A., Mikahailova, E.A., Post, C.J., and Schlautman, M.A. 2007. Atmospheric Mg2+ wet deposition within the continental United States and implications for soil inorganic carbon sequestration. Tellus B 59, 50-56, DOI 10.1111/j.1600-0889.2006.00242.x.
  • Griffis-Kyle, K.L. 2007. Sublethal effects of nitrite on eastern tiger salamander (Ambystoma tigrinum tigrinum) and wood frog (Rana sylvatica) embryos and larvae: implications for field populations. Aquat. Ecolology 41:119-127, DOI 10.1007/s10452-006-9047-1.
  • Guentzel, J.L., Portilla, E., Keith, K.M., and Keith, E.O. 2007. Mercury transport and bioaccumulation in riverbank communities of the Alvarado Lagoon System, Veracruz State, Mexico. Science of the Total Environment 388:316-324.
  • Hales, H.C., Ross, D.S., and Lini, A. 2007. Isotopic signature of nitrate in two contrasting watersheds of Brush Brook, Vermont, USA. Biogeochemistry 84(1):51-66.
  • Hameedi, J., Paerl, H., Kennish, M., and Whitall, D. 2007. Nitrogen deposition in U.S. coastal bays and estuaries. EM December 2007:19-25.
  • Harris, R., Krabbenhoft, D.P., Mason, R., Murray, M.W., Reash, R., and Saltman, T. 2007. Ecosystem responses to mercury contamination: Indicators of change. CRC Press, 2003, ISBN 0849388929, 9780849388927, 216 pages.
  • Hartman, M.D., Baron, J.S., and Ojimaa, D.S. 2007. Application of a coupled ecosystem-chemical equilibrium model, DayCent-Chem, to stream and soil chemistry in a Rocky Mountain watershed. Ecological Modeling 200:493-510.
  • He, T., Lu, J., Yang, F., and Feng, X. 2007. Horizontal and vertical variability of mercury species in pore water and sediments in small lakes in Ontario. Science of the Total Environment 386:53-64. Heartsill-Scalley, T., Scatena, F.N., Estrada, C., McDowell, W.H., and Lugo, A.E. 2007. Disturbance and long-term patterns of rainfall and throughfall nutrient fluxes in a subtropical wet forest in Puerto Rico. J. Hydrology 333:472-485.
  • Hicks, B.B. 2007. On the assessment of atmospheric deposition of sulfur and nitrogen species to the surface of large inland lakes Lake Champlain. J. Great Lakes Research 114-121.
  • Hinkle, S.R., Bohlke, J.K., Duff, J.H., Morgan, D.S., and Weick, R.J. 2007. Aquifer-scale controls on the distribution of nitrate and ammonium in ground water near La Pine, Oregon, USA. J. Hydrology 333:486-503.
  • Inamdar, S., 2007. Exports of dissolved ammonium (NH4+) during storm events across multiple catchments in a glaciated forested watershed. Environ. Monit. Assess. 133:347-363.
  • Inamdar, S.P., and Mitchell, M.J. 2007. Contributions of riparian and hillslope waters to storm runoff across multiple catchments and storm events in a glaciated forested watershed. J. Hydrology 341:116-130.
  • Johnson, M.S., Woodbury, P.B., Pell, A.N., and Lehmann, J. 2007. Land-use change and stream water fluxes: Decadal dynamics in watershed nitrate exports. Ecosystems 10:1182-1196, DOI: 10.1007/s10021-007-9091-2.
  • Johnson, S.L., Neuer, S., and Garcia-Pichel, F. 2007. Export of nitrogenous compounds due to incomplete cycling within biological soil crusts of arid lands. Environmental Microbiology 9(3):680-689.
  • Karouna-Renier, N.K., Snyder, R.A., Allison, J.G., Wagner, M.G., and Rao, K.R. 2007. Accumulation of organic and inorganic contaminants in shellfish collected in estuarine waters near Pensacola, Florida: Contamination profiles and risks to human consumers. Environmental Pollution 145:474-488.
  • Knightes, C., Meaburn, M., and Araujo, R. 2007. Atmospheric deposition of mercury. EM December 2007:26-30.
  • Lawrence, G.B., Sutherland, J.W., Boylen, C.W., Nierzwicki-Bauer, S.A., Momen, B., Baldigo, B.P., and Simonin, H.A. 2007. Acid rain effects on aluminum mobilization clarified by inclusion of strong organic acids: Environmental Science and Technology 41:93-98.
  • Lehmann, C.M.B., Bowersox, V.C., Larson, R.S., and Larson, S.M. 2007. Monitoring long-term trends in sulfate and ammonium in U.S. precipitation: Results from the National Atmospheric Deposition Program/ National Trends Network. Water, Air, and Soil Pollution: Focus 7:59-66.
  • Lindner, B.L., and Frysinger, J.R. 2007. Bulk atmospheric deposition in the Charleston Harbor watershed. J. Coastal Research 23(6):1452-1461.
  • Lovett, G.M., Burns, D.A., Driscoll, C.T., Jenkins. J.C., Mitchell, M.J, Rustad, L., Shanley, J.B., Likens, G.E., Haeuber, R., 2007. Who needs environmental monitoring Frontiers of Ecology and the Environment 5: 253-260.
  • Marcarelli, A.M., and Wurtsbaugh, W.A. 2007. Effects of upstream lakes and nutrient limitation on periphytic biomass and nitrogen fixation in oligotrophic, subalpine streams. Freshwater Biology 52:2211-2225, doi:10.1111/j.1365-2427.2007.01851.x.
  • Martins, N., Lopes, I., Harper, R.M., Ross, P., and Ribeiro, R. 2007. Differential resistance to copper and mine drainage in Daphnia Longispirna: Relationship with Allozyme Genotypes. Environmental Toxicology and Chemistry, 26:1904-1909.
  • Mast, M.A. 2007. Assessment of historical water-quality data for national park units in the Rocky Mountain Network, Colorado and Montana, through 2004: U.S. Geological Survey Scientific Investigations Report 2007-5147, 80 p.
  • Mathur, R., Frick, W., Lear, G., and Dennis, R. 2007. Ecological forecasting: Microbial contamination and atmospheric loadings of nutrients to land and water. EM December 2007:36-40. McGee, G.G., Mitchell, M.J., Leopold, D.J., Raynal, D.J., and Mbila, M. 2007. Relationships among forest age, composition and elemental dynamics of Adirondack northern hardwood forests. J. Torrey Botanical Society: 253-268, DOI: 10.3159/1095-5674(2007)134[253:RAFACA]2.0.CO;2.
  • McHale, M.R., Burns, D.A., Lawrence, G.B., and Murdoch, P.S. 2007. Factors controlling soil water and stream water aluminum concentrations after a clearcut in a forested watershed with calcium-poor soils. Biogeochemistry 84:311-331, DOI 10.1007/s10533-007-9124-0.
  • McLauchlan, K.K., Craine, J.M., Oswald, W.W., Leavitt, P.R., and Likens, E.I. 2007. Changes in nitrogen cycling during the past century in a northern hardwood forest. P. National Academy of Sciences 104 7466 7470 doi10.1073pnas.070177910.
  • McNulty, S.G., Cohen, E.C., Moore Meyers, J.A., Sullivan, T.J., and Li, H. 2007. Estimates of critical acid loads and exceedances for forest soils across the conterminous United States. Environ. Poll. 149(3):281-292.
  • Monteith, D.T., and 12 others. (2007) Dissolved organic carbon trends resulting from changes in atmospheric deposition chemistry. Nature 450, 537-540.
  • Morris, S.J., Bohm, S., Haile-Mariam, S., and Paul, E.A. 2007. Evaluation of carbon accrual in afforested agricultural soils. Global Change Biology 13:1145-1156, doi: 10.1111/j.1365-2486.2007.01359.
  • Munthe, J., Bodaly, R.A., Branfireun, B.A., Driscoll, C.T., Gilmour, C.C., Harris, R., Horvat, M., Lucotte, M., and Malm, O. 2007. Recovery of mercury-contaminated fisheries. Ambio. 36(1):33-44.
  • Musselman, R.C., and Korfmacher, R.C. 2007. Air quality at a snowmobile staging area and snow chemistry on and off trail in a Rocky Mountain subalpine forest, Snowy Range, Wyoming. Environ. Monit. Assess. 133:321-334 DOI 10.1007/s10661-006-9587-9.
  • Neill, C., Patterson III, W.A., and Crary Jr, D.W. 2007. Responses of soil carbon, nitrogen and cations to the frequency and seasonality of prescribed burning in a Cape Cod oak-pine forest. Forest Ecology and Management 250:234-243.
  • Nelson, S.J., Johnson, K.B., Kahl, J.S., Haines T.A., and Fernandez, I.J. 2007. Mass balances of mercury and nitrogen in burned and unburned forested watersheds at Acadia National Park, Maine, USA. Environ. Monit. Assess. 126:69-80, DOI 10.1007/s10661-006-9332-4.
  • Nielsen, M.G., and Kahl, J.S. 2007. Nutrient export from watersheds on Mt. Desert Island, Maine, as a function of land use and fire history. Environ. Monit. Assess. 126:81-96, DOI 10.1007/s10661-006-9333-3.
  • Nolan, B.T., Healy, R.W., Taber, P.E., Perkins, K., Hitt, K.J., and Wolock, D.M. 2007. Factors influencing ground-water recharge in the Eastern United States. J. Hydrology 332:187-205.
  • Norton, S.A. 2007. Atmospheric metal pollutants-archives, methods, and history. Water Air Soil Pollut.: Focus (2007) 7:93-98, DOI 10.1007/s11267-006-9089-3.
  • Paller, M.H., and Littrell, J.W. 2007. Long-term changes in mercury concentrations in fish from the Middle Savannah River. Science of the Total Environment 382:375-382. Peckenham, J.M., Kahl, J.S., Nelson, S.J., Johnson, K.B., and Haines, T.A. 2007. Landscape controls on mercury in streamwater at Acadia National Park, USA. Environ. Monit. Assess. 126:97-104, DOI 10.1007/s10661-006-9334-2.
  • Percy, K.E., and Karnosky, D.F. 2007. Air quality in natural areas: Interface between the public, science and regulation. Environmental Pollution 149: 256-267.
  • Pfeifer-Meister, L., and Bridgham, S.D. 2007. Seasonal and spatial controls over nutrient cycling in a pacific northwest prairie. Ecosystems 10:1250-1260, DOI: 10.1007/s10021-007-9093-0.
  • Pocewicz, A., Morgan, P., and Kavanagh, K. 2007. The effects of adjacent land use on nitrogen dynamics at forest edges in Northern Idaho. Ecosystems 10:226-238, DOI: 10.1007/s10021-007-9015-1.
  • Poor, C.J., and McDonnell, J.J. 2007. The effects of land use on stream nitrate dynamics. J. Hydrology 332:54-68.
  • Kirby, C.S., McInerney, B., and Turner, M.D. 2008. Groundtruthing and potential for predicting acid deposition impacts in headwater streams using bedrock geology, GIS, angling, and stream chemistry. Science of the Total Environment 393:249-261.
  • Kost, D., Chen, L., and Dick, W.A. 2008. Predicting plant sulfur deficiency in soils: Results from Ohio. Biol. Fertil. Soils 44:1091-1098.
  • Krupa, S., Booker, F., Bowersox, V., Lehmann, C., and Grantz, D. 2008. Trace gases associated with U.S. agriculture: A review. J. Air & Waste Manage. Assoc. 58:986-993, DOI:10.3155/1047-3289.58.8.986.
  • Lawrence, G.B., Roy, K.M., Baldigo, B.P., Simonin, H.A., Capone, S.B., Sutherland, J.W., Nierzwicki-Bauer, S.A., and Boylen, C.W. 2008. Effects of acid rain on the chemistry of western Adirondack streams in 2003-2005: Journal of Environmental Quality 37:1-11, doi: 10.2134/jeq2008.0061.
  • Liu, I., Liu, S., Loveland, T.R., and Tieszen, L.L. 2008. Integrating remotely sensed land cover observations and a biogeochemical model for estimating forest ecosystem carbon dynamics. Ecological modeling, in press.
  • Lohsea, K.A., Hope, D., Sponsellera, R., Allend, J.O., and Grimma, N.B. 2008. Atmospheric deposition of carbon and nutrients across an arid metropolitan area. Science of the Total Environment 402:95-105. May, D., and Sivakumar, M. 2008. Comparison of artificial neural network and regression models in the prediction of urban stormwater quality. Water Environment Research 80(1):4-9.
  • Mast, M.A., and Clow, D.W. 2008. Effects of 2003 wildfires on stream chemistry in Glacier National Park, Montana. Hydrological Processes (to be published) (www.interscience.wiley.com) DOI: 10.1002/hyp.7121.
  • McHale, M.R., Murdoch, P.S., Burns, D.A., Baldigo, B.P., 2008. Effects of forest harvesting on ecosystem health in the headwaters of the New York City water supply, Catskill Mountains, New York, U.S. Geological Survey Scientific Investigations Report 2008-5057, 22 p.
  • Nanus, L., Williams, M.W., Campbell, D.H., Elliott, E.M., Kendall, C.K. 2008. Evaluating regional patterns in nitrate sources to watersheds in national parks of the Rocky Mountains using nitrate isotopes. Environmental Science and Technology 42:6487-6493.
  • Stamenkovica, J., Gustin, M.S., Arnone III, J.A., Johnson, D.W., Larsen, J.D., and Verburg, P.S.J. 2008. Atmospheric mercury exchange with a tallgrass prairie ecosystem housed in mesocosms. Science of the Total Environment 406:227-238.
  • Stednick, J.D. 2008. Long-term water quality changes following timber harvesting. In hydrological and biological responses to forest practices. Ecological Studies V199, Springer, New York, ISSN 0070-8356, doi 10.1007/978-0-387-69036-0.
  • Sullivan, T.J., Cosby, B.J., Webb, J.R., Dennis, R.L., Bulger, A.J., and Deviney Jr, F.A. 2008. Streamwater acid-base chemistry and critical loads of atmospheric sulfur deposition in Shenandoah National Park, Virginia. Environ. Monit. Assess. 137:85-99, DOI 10.1007/s10661-007-9731-1.
  • Sunderland, E.M., Cohen, M.D., Selin, N.E., and Chmura, G.L. 2008. Reconciling models and measurements to assess trends in atmospheric mercury deposition Environmental Pollution (in press) 1-10, doi:10.1016/j.envpol.2008.01.021.
  • Nazareth, C. 2008. Invasive species and panne ecosystems: The effects of atmospheric pollution, Masters Thesis, Indiana University.
  • Nelson, S.J., Johnson, K.B., Weathers, K.C., Loftin, C.S., Fernandez, I.J., Kahl, J.S., and Krabbenhoft, D.P. 2008. A comparison of winter mercury accumulation at forested and no-canopy sites measured with different snow sampling techniques. Applied Geochemistry 23:384-398.
  • Newman, B.D., and Graham, R.C. 2008. Species-level impacts on chaparral root zone hydrology (Special Section). Vadose Zone J. 7:1110-1118, DOI: 10.2136/vzj2007.0105.
  • Oropeza, J. K. 2008. Controls on soil acidity in Loch Vale Watershed, Rocky Mountain National Park, Colorado. M.S. Thesis, Colorado State University. 59 pp.
  • Page, B.D., Bullen, T.D., and Mitchell, M.J. 2008. Influences of calcium availability and tree species on Ca isotope fractionation in soil and vegetation. Biogeochemistry 88:1-13, DOI 10.1007/s10533-008-9188-5.
  • Paulson, A.J., and Norton, D. 2008. Mercury sedimentation in lakes in western Whatcom County, Washington, USA and its relation to local industrial and municipal atmospheric sources. Water Air Soil Pollution 189:5-19, DOI 10.1007/s11270-007-9549-z.
  • Perez-Suarez, M., Fenn, M.E., Cetina-Alcala, V.M., and Aldrete, A. 2008. The effects of canopy cover on throughfall and soil chemistry in two forest sites in the Mexico City air basin. Atmosfera 21(1).
  • Peterson, C., and Gustin, M. 2008. Mercury in the air, water and biota at the Great Salt Lake (Utah, USA). Science of the Total Environment 405:255-268.
  • Pinder, R.W., Gilliland, A.B., and Dennis, R.L. 2008. Environmental impact of atmospheric NH3 emissions under present and future conditions in the Eastern United States, Geophys. Res. Lett., 35, L12808, doi:10.1029/2008GL033732.
  • Risch, M.R. and Fowler, K.K., 2008. Mercury in precipitation in Indiana, January 2004 December 2005: U.S. Geological Survey Scientific Investigations Report 2008-5148 (in press).
  • Smith, S.M., Hanley, M., and Killingbeck, K.T. 2008. Development of vegetation in dune slack wetlands of Cape Cod National Seashore (Massachusetts, USA). Plant Ecology 194:243-256, DOI 10.1007/s11258-007-9288-7.
  • Spruill, T.B., and Bratton, J.F. 2008. Estimation of groundwater and nutrient fluxes to the Neuse River Estuary, North Carolina. Estuaries and Coasts 31:501-520, DOI 10.1007/s12237-008-9040-0.
  • Tkacz, B., Moody, B., Castillo, J.V., Fenn, M.E. 2008. Forest health conditions in North America. Environmental Pollution 155:409-425.
  • U.S. Climate Change Science Program. 2008. Preliminary review of adaptation options for climate-sensitive ecosystems and resources. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. [S.H. Julius, J.M. West (eds.), J.S. Baron, L.A. Joyce, B.D. Keller, M.A. Palmer, C.H. Peterson, and J.M. Scott (Authors)]. U.S. Environmental Protection Agency, Washington, DC, USA, 873 pp.
  • Ulberg, A.L. and Risch, M.R., 2008. Total mercury and methylmercury in Indiana streams, August 2004-September 2006: U.S. Geological Survey Scientific Investigations Report 2008-5176 (in press).
  • van Verseveld, W.J., McDonnell, J.J., and Lajtha, K. 2008. A mechanistic assessment of nutrient flushing at the catchment scale. J. Hydrology 358: 268-287.
  • Walker, C., and Lin, H.S. 2008. Soil property changes after four decades of wastewater irrigation: A landscape perspective. Catena 73:63-74.
  • Watras, C. J., and Morrison, K.A. 2008. The response of two remote, temperate lakes to changes in atmospheric mercury deposition, sulfate, and the water cycle. Canadian J. Fisheries and Aquatic Sciences V65(1): 110-116.
  • Wetherbee, G.A., and Lehmann, C.M.B. 2008. Mercury deposition network site operator training for the system blank and blind audit programs: U.S. Geological Survey Open-File Report 2008-1252, version 1.0., http://pubs.usgs.gov/of/2008/1252/.
  • Woltemade, C.J., and Woodward, J. 2008. Nitrate removal in a restored spring-fed wetland, Pennsylvania, USA. J. American Water Resources Assoc. 44:222-234.
  • Zhai, J., Driscoll, C.T., Sullivan, T.J., and Cosby, B.J. 2008. Regional application of the PnET-BGC model to assess historical acidification of Adirondack lakes. Water Resour. Res. 44, W01421, doi:10.1029/2006WR005532.
  • rp, C.D., and Baker, M.A. 2007. Discontinuities in stream nutrient uptake below lakes in mountain drainage networks. Limnol. Oceanogr. 52(5):1978-1990.
  • Azzolina, N.A., Siegel, D.I., Brower, J.C., Samson, S.D., Otz, M.H., and Otz, I. 2007. Can the HGM classification of small, non-peat forming wetlands distinguish wetlands from surface water geochemistry Wetlands 27(4):884-893.
  • Baldigo, B.P., Lawrence, G., and Simonin, H. 2007. Persistent mortality of brook trout in episodically acidified streams of the Southwestern Adirondack Mountains, New York. Transactions of the American Fisheries Society 136:121-134.
  • Boggs J.L., McNulty, S.G., and Pardo, L.H. 2007. Changes in conifer and deciduous forest foliar and forest floor chemistry and basal area tree growth across a nitrogen (N) deposition gradient in the Northeastern US. Environmental Pollution 149:303-314.
  • Bytnerowiczm, A., Omasa, K., and Paoletti, E. 2007. Integrated effects of air pollution and climate change on forests: A northern hemisphere perspective. Environmental Pollution 147:438-445.
  • Caccia, V.G., and Boyer, J.N. 2007. A nutrient loading budget for Biscayne Bay, Florida. Marine Pollution Bulletin 54:994-1008.
  • Castro, M.S., Eshleman, K.N., Pitelka, L.F., Frech, G., Ramsey, M., Currie, W.S., Kuers, K., Simmons, J.A., Pohlad, B.R., Thomas, C.L., and Johnson, D.M. 2007. Symptoms of nitrogen saturation in an aggrading forested watershed in Western Maryland. Biogeochemistry 84:333-348.
  • Chalmers, A.T., Van Metre, P.C., and Callender, E. 2007. The chemical response of particle-associated contaminants in aquatic sediments to urbanization in New England, U.S.A. J. Contaminant Hydrology 91:4-25.
  • Chen, L., Kost, D., and Dick, W.A. 2007. Flue gas desulfurization products as sulfur sources for corn. J. Soil Sci. Soc. Am. 72:1464-1470, doi:10.2136/sssaj2007.0221.
  • Cleavitt, N.L., Klima, K.L., and Fahey, T.J. 2007. The role of water availability in seasonal growth of Bazzania trilobata on boulders in an eastern hemlock stand. The Bryologist 110(2):295-308.
  • Danz, N.P., Niemi, G.J., Regal, R.R., Hollenhorst, T., Johnson, L.B., Hanowski, J.M., Axler, R.P., Ciborowski, J.J.H., Hrabik, T., Brady, V.J., Kelly, J.R., Morrice, J.A., Brazner, J.C., Howe, R.W., Johnston, C.A., and Host, G.E. 2007. Integrated measures of anthropogenic stress in the U.S. Great Lakes Basin. Environ. Manage. 39:631-647, DOI 10.1007/s00267-005-0293-0.
  • Dayan, U., and Lamb, D. 2007. Influences of atmospheric circulation on the variability of wet sulfate deposition. International Journal of Climatology, DOI: 10.1002/joc.1648.
  • Dennis, R., Haeuber, R., Blett, T., Cosby, J., Driscoll, C., Sickles, J., and Johnston, J. 2007. Sulfur and nitrogen deposition on ecosystems in the United States. EM December 2007:12-17. Driscoll, C.T., Driscoll, K.M., Roy, K.M., & Dukett, J. (2007). Changes in the chemistry of lakes in the Adirondack region of New York following declines in acidic deposition. Appl. Geochem. 22, 1181-1188.
  • Elliott, E.M., Kendall, C., Wankel, S.D., Burns, D.A., Boyer, E.W., Harlin, K., Bain, D.J., and Butler, T.J. 2007. Nitrogen isotopes as indicators of NOx source contributions to atmospheric nitrate deposition across the Midwestern and Northeastern United States. Environmental Science & Technology 41:7661-7667.