Pien Huang
Stories
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The U.S. must replace its lead pipes, according to new EPA rule
The EPA is finalizing a rule to require replacement of lead service lines that connect homes to water systems. The change would lower lead levels in drinking water but poses logistical challenges.
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In Asheville, N.C., many residents may be without drinking water for weeks
Tropical storm Helene caused 'catastrophic' damage to Asheville’s water treatment and distribution system, cutting off at least 70% of the city’s drinking water supply.
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Many residents of Asheville, N.C., may be without potable water for weeks
Officials in Asheville say the city's water systems were "severely damaged" in the aftermath of Hurricane Helene. Precise assessments are hard, since roads have washed away.
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5 things to know from this week’s big report on cannabis
More Americans now use pot on a daily basis than alcohol. A sweeping new report says the federal government needs to better understand the risks to the public and get involved.
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Fragmented state and federal marijuana policies can lead to risks to public health
Cannabis use has changed in recent years, as many states have legalized it. An influential group of scientists recommends policy changes to protect public health.
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Hazardous chemicals in food packaging can also be found in people
Chemicals used in food packaging and linked with health problems have been detected in the human body. The chemicals can move from packaging into food.
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Chemicals from food packaging leach into food -- affecting people’s health
A new study finds more than 3,000 chemicals used in food packaging are getting into people's bodies. Some -- including BPA, phthalates and PFAS -- have clear health concerns; others are unstudied.
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Missouri bird flu case raises questions for scientists
A week after an unusual human case of H5 avian influenza was reported in Missouri, many questions remain. The latest on what's known -- and not known -- about the case, and why scientists are worried.
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How a California county got PFAS out of its drinking water
Water utilities across the country will have to comply with EPA limits on "forever chemicals" in drinking water by 2029. Orange County, Calif., got a head start.
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Utilities must comply with limits on PFAS chemicals by 2029. Some have a head start
Treatment plants that filter "forever chemicals" from drinking water in Orange County, Calif., are models for water systems across the country that will need to comply with EPA rules by 2029.
