Filters: Tags: fungicide (X) > Types: Citation (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Paul D Capel Jessica A Hopple Lisa H Nowell Office of Planning and Programming U.S. Geological Survey More... Categories Data (1) Tag Types Place (2) Theme (2) Harvest Set (2) Label (2) USGS Scientific Topic Keyword (1) Tag Schemes Common geographic areas (1) Oregon GEO Place Keywords (1) none (1) None (1) USGS Thesaurus (1) View Results as: JSON ATOM CSV

Pesticides in Weekly Water Samples from the NAWQA Midwest Stream Quality Assessment (2013) Dissolved pesticides were measured in weekly water samples from 100 wadeable streams across eleven states in the Midwestern U.S. during May-August, 2013, as part of the Midwest Stream Quality Assessment study conducted by the U.S. Geological Survey's (USGS) National Water Quality Assessment (NAWQA) Project. Of the 100 stream sites, 12 were urban indicator sites and the remaining 88 sites were located along an agricultural gradient of watershed land use. Twelve depth- and width-integrated samples were collected at each site within the 14-week study period. Water samples were filtered (0.7 micrometers) and analyzed for 227 pesticide compounds by direct-injection liquid chromatography with tandem mass-spectrometry,... Categories: Data; Types: Citation; Tags: Corn Belt, Illinois, Indinana, Iowa, Kansas, All tags... Kentucky, Minnesota, Missouri, NAWQA, National Water Quality Assessment, National Water Quality Program, Nebraska, Ohio, South Dakota, USGS Science Data Catalog (SDC), United States, Water Resources, Wisconsin, aquatic insect communities, aquatic toxicity, fungicide, herbicide, insecticide, mixtures, pesticide, pesticide degradate, stream, water quality, Fewer tags Data and citations describing the connections between agriculture and water quality in the United States This U.S. Geological Survey data release provides the data and citations for selected tables and figures in “Agriculture-A river runs through it-The connections between agriculture and water quality”. This Circular is based on the National Water-Quality Assessment Project’s study of Agricultural Chemicals: Sources, Behavior, and Transport. This study focused on the connections between agriculture and water quality by examining multiple components of the hydrological system within agricultural areas to improve the understanding of how agricultural chemicals are transported into and through streams and groundwater. These data support the following publication: Capel, P.D., McCarthy, K.A., Coupe, R.H., Grey, K.M.,... Types: Citation; Tags: California, Georgia, Illinois, Indiana, Iowa, All tags... Kansas, Maryland, Minnesota, Mississippi, Missouri, National Water Quality Program, Nebraska, North Dakota, Ohio, Oregon, Pennsylvania, USGS Science Data Catalog (SDC), United States, Washington, Wisconsin, agriculture, evaporation, evapotranspiration, fungicide, herbicide, insecticide, pesticide, pesticide and herbicide contamination, photosynthesis, transformation product, transpiration, water quality, water table, Fewer tags