Contaminant Biology Program

News

Browse through a list of USGS environmental health news and budget items.

Filter Total Items: 14
Date published: September 11, 2020

Bioaccumulation of Mercury in Fish Varied by Species and Location in the Chesapeake Bay Watershed—Summary of Existing Data and a Roadmap for Integrated Monitoring

Fish mercury data from State monitoring programs and research studies within the Chesapeake Bay were compiled and summarized to provide a comprehensive overview of the variation in fish mercury concentrations among species and habitats within the watershed...

Date published: September 11, 2020

Review of Cyanobacterial Neurotoxins—Information for Prioritizing Future Science Directions

The current state of knowledge on the modes of action, production, fate, and occurrence of the freshwater cyanobacterial neurotoxins, anatoxin-a and saxitoxin, was reviewed and synthesized to identify gaps and critical research needs to better...

Date published: September 11, 2020

Conceptual Model Developed to Understand Contaminant Pathways between Aquatic and Terrestrial Ecosystems

A conceptual model, based on contaminant properties and ecotoxicological principles, was developed to understand the transfer of contaminants from aquatic to terrestrial ecosystems and the effects of various classes of contaminants on terrestrial...

Date published: September 14, 2018

Identifying Potential Contaminant Exposure to California Condors in the Pacific Northwest

Potential reintroduction of the endangered California Condor to parts of its historic range in the Pacific Northwest would benefit from information on possible threats that could challenge recovery efforts. Exposure to environmental contaminants is a key limiting factor for condor recovery in its southern range.

Date published: July 11, 2016

EarthWord–Morbidity

When you’re not dead yet, but aren’t feeling well either, there’s an EarthWord for that...

Date published: May 9, 2016

Evidence of Unconventional Oil and Gas Wastewater Found in Surface Waters near Underground Injection Site

These are the first published studies to demonstrate water-quality impacts to a surface stream due to activities at an unconventional oil and gas wastewater deep well injection disposal site.

Date published: April 4, 2016

Despite Long-Lasting Pollutants, Ospreys Thrive in US’ Largest Estuary

The world's largest breeding population of ospreys is coping well with the long-lasting residues of toxic chemicals that were banned decades ago but remain in the Chesapeake Bay food chain at varying levels, such as the pesticide DDT and insulating chemicals known as PCBs.

Date published: December 18, 2015

EarthWord – Medical Geology

Medical Geology is an earth science specialty that concerns how geologic materials and earth processes affect human health. 

Date published: August 19, 2015

Mercury and Selenium are Accumulating in the Colorado River Food Web of the Grand Canyon

Although the Grand Canyon segment of the Colorado River features one of the most remote ecosystems in the United States, it is not immune to exposure from toxic chemicals such as mercury according to newly published research in Environmental Toxicology and Chemistry.