Drug pollution concentrates in stream bugs, passes to predators in water and on land

November 6, 2018, Cary Institute of Ecosystem Studies Erinn Richmond collects aquatic invertebrates to test for pharmaceuticals in Brushy Creek in Churnside Park, Victoria, Australia. Credit: Keralee Browne. Sixty-nine pharmaceutical compounds have been detected in stream insects, some at concentrations that may threaten animals that feed on them, such as trout and platypus. When these insects … Continue reading “Drug pollution concentrates in stream bugs, passes to predators in water and on land”

Endocrine Disruption Fact Sheet

To All, TEDX’s one-page fact sheet, Understanding Endocrine Disruption, is a brief non-technical overview of endocrine disrupting chemicals, how we are exposed to them, and how they affect our health. It also includes tips and links to help you reduce exposure to endocrine disruptors. Who needs a fact sheet? Everyone from your congressional representative to your … Continue reading “Endocrine Disruption Fact Sheet”

Like Swimming Through a Pharmacy

Researchers found a wide array of contaminants in Puget Sound fish  By Pippa Wysong March 30, 2016 The fish in Washington State’s Puget Sound are on drugs. In juvenile chinook salmon and staghorn sculpin, researchers recently found traces of more than 40 different contaminants, including pharmaceuticals, personal care products, and industrial chemicals. The presence of … Continue reading “Like Swimming Through a Pharmacy”

Emerging wastewater contaminant metformin causes intersex and reduced fecundity in fish

Nicholas J. Niemuth, Rebecca D. Klaper Highlights Fish were exposed to metformin at concentrations relevant to wastewater effluent. Exposure from early life stages to adulthood caused intersex in male fish. Exposure caused a reduction in fecundity and in overall size of male fish. Results suggest that metformin is a potential endocrine disruptor in the environment. … Continue reading “Emerging wastewater contaminant metformin causes intersex and reduced fecundity in fish”

Endocrine Disruptors: The Secret History of a Scandal

To River Watch readers: Our website has had several articles in the past on the impacts of endocrine disruptors in streams and other waters of the USA. Most of these chemicals come from pharmaceutical sources released through normal waste discharge without being filtered or treated. What has been revealed is that, unlike many other potentially … Continue reading “Endocrine Disruptors: The Secret History of a Scandal”

Does ‘the Dose make the Poison?’

Extensive results challenge a core assumption in toxicology by Pete Myers, Ph.D. and Wendy Hessler The “dose makes the poison” is a common adage in toxicology. It implies that larger doses have greater effects than smaller doses. That makes common sense and it is the core assumption underpinning all regulatory testing. When “the dose makes … Continue reading “Does ‘the Dose make the Poison?’”

Is everything we think we know about chemical toxicity wrong?

May 30, 2012 at 5:54 pm Yes,  if the first comprehensive review of the issue in a decade is correct in concluding that low doses of chemicals can harm health. Although the hypothesis that chemicals can have health effects at doses much lower than those routinely tested in the toxicological evaluation of chemicals is much-discussed, … Continue reading “Is everything we think we know about chemical toxicity wrong?”


To All, Don McEnhill, Executive Director of Russian Riverkeeper is a featured interview in: THE RUSSIAN RIVER: ALL RIVERS – THE VALUE OF AN AMERICAN WATERSHED “The time of using greed to justify degrading our environment is over.” “We need to get very honest with the amount of water we have in the worst year. … Continue reading “THE RUSSIAN RIVER: ALL RIVERS Screenings”

Study finds steroids may persist longer in the environment than expected

University of Iowa-led research shows some drugs can partially regenerate themselves Assessing the risk posed to aquatic organisms by the discharge of certain steroids and pharmaceutical products into waterways is often based on a belief that as the compounds degrade, the ecological risks naturally decline. But there’s growing sentiment that once in the environment, some … Continue reading “Study finds steroids may persist longer in the environment than expected”

The 16th Annual Coho Confab

The 16th Annual Coho Confab will be held in the Mattole River Valley. Salmonid Restoration Federation and Trees Foundation are the permanent co-hosts of this educational event and are excited to be partnering this year with the Mattole River and Range Partnership that includes Sanctuary Forest, Mattole Restoration Council, and the Mattole Salmon Group. The … Continue reading “The 16th Annual Coho Confab”