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Data

The Environmental Health Program (Contaminant Biology and Toxic Substances Hydrology) generates environmental contaminant and pathogen, toxicity, and effects data. All of which are provided to the public in our publications and data sets. 

Filter Total Items: 94

Water-quality data for a statewide assessment of per- and polyfluoroalkyl substances (PFAS) study in Iowa, 2019-2020 Water-quality data for a statewide assessment of per- and polyfluoroalkyl substances (PFAS) study in Iowa, 2019-2020

Data were collected at 60 surface water and two effluent sites across Iowa in 2019-2020 by staff from the U.S. Geological Survey Central Midwest Water Science Center. Samples were submitted to the National Water Quality Laboratory in Denver, Colorado, and were analyzed for per- and polyfluoroalkyl substances.

Biomarker responses in American kestrels exposed in ovo to EHTBB and TBPH Biomarker responses in American kestrels exposed in ovo to EHTBB and TBPH

Observations of test subjects and hatching data - Body weight, organ/tissue weights Biomarker data (oxidative stress indicators, oxidative DNA damage, thyroid hormones, histological findings) in various tissues Chemical residues in tissues

Phytoplankton data for samples collected at eleven large river sites throughout the United States, June through October 2018 Phytoplankton data for samples collected at eleven large river sites throughout the United States, June through October 2018

This U.S. Geological Survey (USGS) Data Release provides phytoplankton data for samples collected from eleven large river sites throughout the United States, from June through October 2018. All data are reported as raw calculated values and are not rounded to USGS significant figures. The dataset includes all routine and quality assurance/quality control samples collected as part of a...

Data on the Effects of Oil and Gas Wastewater Components on Microbial Community Structure and Function Data on the Effects of Oil and Gas Wastewater Components on Microbial Community Structure and Function

Oil and gas (OG) wastewaters are commonly disposed of by underground injection and previous research showed that activities at a disposal facility in West Virginia affected stream biogeochemistry and sediment microbial communities downstream from the facility. Microorganisms can control the fate and transport of organic and inorganic components of OG wastewater highlighting the need to

Presence/Absence of Myxobolus inornatus, Aeromonas spp., and Flavobacterium spp. in Young-of-the-Year Smallmouth Bass with Fluorescence In Situ Hybridization Presence/Absence of Myxobolus inornatus, Aeromonas spp., and Flavobacterium spp. in Young-of-the-Year Smallmouth Bass with Fluorescence In Situ Hybridization

Histopathological assessments of young-of-the-year smallmouth bass (YOY SMB) in the Susquehanna River drainage identified a high prevalence of the myxozoan Myxobolus inornatus. This myxozoan infects the connective tissue of the muscle below the skin but is sometimes observed in the esophagus and buccal cavity. In some instances, shallow infections cause breaks in the skin which could...

Evaluation of ELISA for the Analysis of Imidacloprid in Plasma, Liver, and Fecal Matter Evaluation of ELISA for the Analysis of Imidacloprid in Plasma, Liver, and Fecal Matter

Neonicotinoids have become the most widely used insecticides in world with rapid growth in applications as seed coatings. Nontarget organisms are exposed to concentrated levels of pesticidal active ingredients through ingestion of treated seeds. To better understand pesticide fate, analytical methods are necessary to rapidly screen and accurately quantitate contaminants in environmental...

Benthic Algae and Phytoplankton Community and Toxin Data for Selected Stations in the Mississippi Sound, 2019 Benthic Algae and Phytoplankton Community and Toxin Data for Selected Stations in the Mississippi Sound, 2019

The Bonnet Carré Spillway (BCS), located about 28 miles northwest of New Orleans, was constructed by the US Army Corp of Engineers in the early 1930s as part of an integrated flood-control system for the lower Mississippi River (MR). The BCS control structure consists of 350 individual bays that can be opened to divert water from the river to Lake Pontchartrain to relieve pressure on...
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