A crisis emerges across the US as 'forever chemicals' quietly contaminate drinking water wells
Kristen Hanneman made a small decision in 2022 that would upend life for her entire town.
Human environmental safety is a multidisciplinary topic concerned with assessing and managing risks to human health arising from environmental exposures to chemical, physical, and biological agents. It encompasses hazard identification, dose–response assessment, exposure assessment, and risk characterization, integrating toxicology, epidemiology, environmental chemistry, and exposure science. The field informs regulatory thresholds, safety factors, and environmental quality standards aimed at preventing adverse outcomes such as carcinogenicity, reproductive toxicity, neurotoxicity, and respiratory disorders. Human environmental safety also includes evaluation of cumulative and aggregate exposures, susceptible populations, and uncertainty analysis to guide risk management, sustainable chemical use, and environmental health policy.
Kristen Hanneman made a small decision in 2022 that would upend life for her entire town.
Environment
Feb 2, 2026
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The patchwork efforts to identify and safely remove contamination left by the 2025 Eaton and Palisades fires have been akin to the Wild West. Experts have given conflicting guidance on best practices. Shortly after the fires, ...
Environment
Jan 29, 2026
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For decades, families in communities around Johannesburg have been living close to huge gold mining waste dumps. For many residents, the dust that is released there is just part of everyday life—but it can contain natural ...
Earth Sciences
Jan 29, 2026
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The continued use of "forever chemicals" could cost Europe up to 1.7 trillion euros ($2 trillion) by 2050 because of their impact on people's health and the environment, an EU-commissioned report said Thursday.
Environment
Jan 29, 2026
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Microscopic airborne particles known as PM2.5 contribute to 100,000 premature deaths in the United States each year. A new University of Notre Dame study finds that 40% of these deaths can be attributed to pollution that ...
Environment
Jan 28, 2026
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How many tiny pieces of plastic are currently inside your body? A series of headline-grabbing studies in the last few years have claimed to have found microplastics throughout human bodies—inside blood, organs and even brains.
Environment
Jan 27, 2026
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In the fishing villages along Lake Kariba in northern Zimbabwe, near the border with Zambia, everyday routines that should be ordinary—like collecting water, walking to the fields or casting a fishing net—now carry a quiet, ...
Plants & Animals
Jan 14, 2026
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The U.S. boasts more than 4 million miles of rivers, peppered with laws and regulations to protect access to drinking water and essential habitat for fish and wildlife. But in the first comprehensive review of river protection, ...
Environment
Jan 9, 2026
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When we talk about disasters, we often default to the language of nature. We describe storms as "unprecedented," floods as "once-in-a-century," and heat waves as "record-breaking." While these descriptors may be technically ...
Scientists specializing in soil geochemistry, environmental engineering, and health affiliated with the University of São Paulo (USP) and the Federal University of Espírito Santo (UFES) in Brazil and the University of Santiago ...
Environment
Dec 19, 2025
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