Toxicology

  1. Environment

    Vaping linked to host of new health risks

    Animal studies and analyses of gene activity point to broad range of potential new health risks from vaping affecting everything from sperm to heart and immunity to mental health.

    By Janet Raloff
  2. Environment

    PCB levels still high in Europe’s killer whales, smaller dolphins

    PCBs banned for decades still show up at extremely high concentrations in Europe’s killer whales and other dolphins.

    By Susan Milius
  3. Environment

    Year in review: BPA alternatives aren’t benign

    Evidence is accumulating that at least one popular alternative to bisphenol A can enter the body and trigger developmental and physiological changes.

    By Janet Raloff
  4. Environment

    Air pollutants enter body through skin

    Although scientists have largely viewed skin as an unimportant portal to blood for toxic air pollutants, new human data show that skin can surpass lungs as a route of entry.