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Agriculture — A river runs through it — The connections between agriculture and water quality 科技报告
报告编号: 70187973, 页数: 216, 2018
作者:  Capel, Paul D. capel@usgs.gov;  McCarthy, Kathleen A.;  Coupe, Richard H. rhcoupe@usgs.gov;  Grey, Katia M.;  Amenumey, Sheila E.;  Baker, Nancy T. ntbaker@usgs.gov;  Johnson, Richard L.
Adobe PDF(69774Kb)  |  收藏  |  浏览/下载：71/43  |  提交时间：2019/11/06
Methods used for the collection and analysis of chemical and biological data for the Tapwater Exposure Study, United States, 2016–17 科技报告
报告编号: 70197649, , 2018
作者:  Romanok, Kristin M.;  Kolpin, Dana W.;  Meppelink, Shannon M.;  Argos, Maria;  Brown, Juliane B.;  Devito, Michael J.;  Dietze, Julie E.;  Givens, Carrie E.;  Gray, James L.;  Higgins, Christopher P.;  Hladik, Michelle L.;  Iwanowicz, Luke R.;  Loftin, Keith A.;  McCleskey, R. Blaine;  McDonough, Carrie A.;  Meyer, Michael T.;  Strynar, Mark J.;  Weis, Christopher P.;  Wilson, Vickie S.;  Bradley, Paul M.
Adobe PDF(1098Kb)  |  收藏  |  浏览/下载：100/27  |  提交时间：2019/11/06
Status of selenium in south San Francisco Bay—A basis for modeling potential guidelines to meet National tissue criteria for fish and a proposed wildlife criterion for birds 科技报告
报告编号: 70197967, 页数: 84, 2018
作者:  Luoma, Samuel N.;  Presser, Theresa S. tpresser@usgs.gov
Adobe PDF(4736Kb)  |  收藏  |  浏览/下载：30/23  |  提交时间：2019/11/06
Nutrient loads in the Lost River and Klamath River Basins, south-central Oregon and northern California, March 2012–March 2015 科技报告
报告编号: 70197441, , 2018
作者:  Schenk, Liam N. lschenk@usgs.gov;  Stewart, Marc A. mastewar@usgs.gov;  Caldwell Eldridge, Sara L. seldridge@usgs.gov
Adobe PDF(2646Kb)  |  收藏  |  浏览/下载：28/9  |  提交时间：2019/11/06
Procedures for using the Horiba Scientific Aqualog® fluorometer to measure absorbance and fluorescence from dissolved organic matter 科技报告
报告编号: 70197568, , 2018
作者:  Hansen, Angela M.;  Fleck, Jacob jafleck@usgs.gov;  Kraus, Tamara E. C. tkraus@usgs.gov;  Downing, Bryan D. bdowning@usgs.gov;  von Dessonneck, Travis;  Bergamaschi, Brian bbergama@usgs.gov
Adobe PDF(4808Kb)  |  收藏  |  浏览/下载：26/9  |  提交时间：2019/11/06
Pesticide inputs to the Sacramento–San Joaquin Delta, 2015–16: Results from the Delta Regional Monitoring Program 科技报告
报告编号: 70197413, 页数: 59, 2018
作者:  De Parsia, Matthew;  Orlando, James L. jorlando@usgs.gov;  McWayne, Megan M.;  Hladik, Michelle L. mhladik@usgs.gov
Adobe PDF(3396Kb)  |  收藏  |  浏览/下载：40/18  |  提交时间：2019/11/06
Spatial and temporal trends in selenium in the upper Blackfoot River watershed, southeastern Idaho, 2001–16 科技报告
报告编号: 70197746, 页数: 48, 2018
作者:  Zinsser, Lauren M.;  Mebane, Christopher A. cmebane@usgs.gov;  Mladenka, Greg C.;  Van Every, Lynn R.;  Williams, Marshall L.
Adobe PDF(1727Kb)  |  收藏  |  浏览/下载：54/18  |  提交时间：2019/11/06
Determination of δ13C, δ15N, or δ34S by isotope-ratio-monitoring mass spectrometry using an elemental analyzer 科技报告
报告编号: 70191450, 页数: 29, 2018
作者:  Johnson, Craig A. cjohnso@usgs.gov;  Stricker, Craig A. cstricker@usgs.gov;  Gulbransen, Cayce A. cgulbransen@usgs.gov;  Emmons, Matthew P. memmons@usgs.gov
Adobe PDF(738Kb)  |  收藏  |  浏览/下载：29/10  |  提交时间：2019/11/06
Phase 1 studies summary of major findings of the South Bay Salt Pond Restoration Project, South San Francisco Bay, California 科技报告
报告编号: 70196189, 页数: 68, 2018
作者:  Valoppi, Laura
Adobe PDF(9771Kb)  |  收藏  |  浏览/下载：3/1  |  提交时间：2019/11/06