Is air pollution making you sick? 4 questions answered

Not a day seems to go by without a story of an "airpocalypse," usually somewhere in a developing nation. It's hard not to empathize with the people in the smoggy images of New Delhi or Ulaanbataar or Kathmandu, often wearing ...

Mercury rising—are the fish we eat toxic?

The amount of mercury extracted from the sea by industrial fishing has grown steadily since the 1950s, potentially increasing mercury exposure among the populations of several coastal and island nations to levels that are ...

Innovative detectors quickly pinpoint radiation source

Innovative "lighthouse" detectors that use a sweeping beam to quickly pinpoint a radiation source in seconds are reducing radiation exposure for workers and opening up new areas for robotic monitoring to avoid potential hazards.

Exposure to wildfire smoke—5 questions answered

Wildfires once again are raging in California – this time in the Los Angeles area, where five fires are currently burning. The fast-moving Thomas fire alone has burned more than 65,000 acres in three days. State agencies ...

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