Filters: Tags: fungicide (X) > Categories: Data (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Citation (1) Contacts Paul D Capel Jessica A Hopple James L Kunz U.S. Geological Survey - ScienceBase Lisa H Nowell More... Tag Types Theme (3) Place (3) Harvest Set (2) Label (1) USGS Scientific Topic Keyword (1) Tag Schemes None (2) Oregon GEO Place Keywords (1) none (1) Geographic Names Information System (1) ISO 19115 Topic Category (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 Chronic toxicity of azoxystrobin to freshwater amphipods, midges, cladocerans, and mussels in water-only exposures-Data Understanding the effects of fungicides on non-target organisms at realistic concentrations and exposure durations is vital for determining potential impacts on aquatic ecosystems. Environmental concentrations of the fungicide azoxystrobin have been reported up to 4.6µg/L in the United States and 30 µg/L in Europe. The objective of the present study was to evaluate the chronic toxicity of azoxystrobin in water-only exposures with an amphipod (Hyalella azteca; 42-d exposure), a midge (Chironomus dilutus; 50-d exposure), a cladoceran (Ceriodaphnia dubia; 7-d exposure), and a unionid mussel (Lampsilis siliquoidea; 28-d exposure) at environmentally relevant concentrations. The potential photo-enhanced toxicity of azoxystrobin... Categories: Data; Tags: Columbia, Environment, aquatic toxicology, fungicide Selected chemicals, solids, and microorganisms that are used in agriculture or produced as by-products of agriculture in the United States as of 2009 This data set brings together and categorizes many of the chemicals, solids, and microorganisms that are used in agriculture or produced as by-products of agriculture in the United States (as of 2009). Each entry in the data set includes the name, Chemical Abstracts Service Registry Number, purpose(s) in agriculture, and a reference. For pesticides and their degradates, the pesticidal use, parent pesticide, and the United States Environmental Protection Agency Pesticide Chemical Code are included. The data were compiled as part of a U.S. Geological Survey study to improve the understanding of field-scale and watershed-scale hydrology and the environmental behavior of individual chemicals. The goals of the study... Categories: Data; Tags: USGS Science Data Catalog (SDC), United States, agricultural chemicals, antimicrobial, chemical transformation, All tags... fertilizer, fungicide, herbicide, hormone, inert, insecticide, nutrient, nutrients, pesticide, pesticides, rodenticide, transformation product, Fewer tags