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

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Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

A comparison of regional mercury atmospheric deposition data with water, yellow perch, and dragonfly larvae samples from lakes in Voyageurs National...

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Flood Redistributes Mercury in Grand Canyon Aquatic Food Webs

Flood Redistributes Mercury in Grand Canyon Aquatic Food Webs

Scientists coupled the concepts of energy flow through food webs with measurements of mercury in organic matter and animals to estimate mercury fluxes...

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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

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...

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Review of Cyanobacterial Neurotoxins—Information for Prioritizing Future Science Directions

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...

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

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...

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Identifying Potential Contaminant Exposure to California Condors in the Pacific Northwest

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...

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In Orlando, USGS Science on the Health of the Environment is on Display

In Orlando, USGS Science on the Health of the Environment is on Display

Studies on the aquatic food web, tree swallows, and the spread of contaminants take center stage at SETAC 2016.

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When the Whole is Less than the Sum of Its Parts

When the Whole is Less than the Sum of Its Parts

Environmental Ratios of Cadmium and Zinc are less Toxic to Aquatic Insects than Expected

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Comprehensive Study finds Widespread Mercury Contamination Across Western North America

Comprehensive Study finds Widespread Mercury Contamination Across Western North America

Mercury contamination is widespread, at various levels across western North America in air, soil, sediment, plants, fish and wildlife.

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EarthWord–Morbidity

EarthWord–Morbidity

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

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

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...

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

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...

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