Research news on ecotoxicology

Ecotoxicology is the scientific discipline that studies the fate and effects of chemical, physical, and biological stressors on organisms, populations, communities, and ecosystems in the environment. It integrates toxicology, ecology, environmental chemistry, and risk assessment to quantify exposure, dose–response relationships, and adverse outcome pathways under realistic environmental conditions. Ecotoxicology addresses contaminant transport, transformation, bioavailability, bioaccumulation, and biomagnification across trophic levels, and evaluates sublethal endpoints such as endocrine disruption, behavioral changes, and reproductive impairment. The field underpins environmental quality criteria, ecological risk assessment, and regulatory decision-making for pollutants including pesticides, metals, pharmaceuticals, and emerging contaminants.

Opioids and other drugs accumulating in freshwater fish

Fish living downstream of wastewater treatment plants are accumulating antidepressants, opioids and other drugs of abuse in their bodies, according to a new study. Using a new analytical method they developed, a team of researchers ...

Birds of prey act as sentinels to warn of forever chemicals

A new paper investigates how raptors, or birds of prey like hawks and eagles, act as a sentinel species that can reveal the level of forever chemicals in the local environment. The forever chemicals, or PFAS, are especially ...

Are mercury levels elevated across US conservation lands?

A study published in The Journal of Wildlife Management found varying risks to species due to mercury pollution across the United States' National Wildlife Refuge System, the world's largest network of lands and waters conserved ...

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