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  • Reviews & Previews

    ‘The Poisoned City’ chronicles Flint’s water crisis

    The Poisoned CityAnna ClarkMetropolitan Books, $30

    America is built on lead. Networks of aging pipes made from the bluish-gray metal bring water into millions of U.S. homes. But when lead, a poison to the nervous system, gets into drinking water — as happened in Flint, Mich. — the heavy metal can cause irreparable harm (SN: 3/19/16, p. 8). In The Poisoned City, journalist Anna Clark...

    07/17/2018 - 07:00 Health, Toxicology, Science & Society
  • News

    How bees defend against some controversial insecticides

    Honeybees and bumblebees have a way to resist toxic compounds in some widely used insecticides.

    These bees make enzymes that help the insects break down a type of neonicotinoid called thiacloprid, scientists report March 22 in Current Biology. Neonicotinoids have been linked to negative effects on bee health, such as difficulty reproducing in honeybees (SN: 7/26/16, p 16). But bees...

    03/22/2018 - 14:41 Toxicology, Chemistry, Conservation
  • News

    The way poison frogs keep from poisoning themselves is complicated

    View the video

    For some poison dart frogs, gaining resistance to one of their own toxins came with a price.

    The genetic change that gives one group of frogs immunity to a particularly lethal toxin also disrupts a key chemical messenger in the brain. But the frogs have managed to sidestep the potentially damaging side effect through other genetic tweaks, researchers report in the...

    09/22/2017 - 11:56 Toxicology, Evolution, Animals
  • News

    New material could filter water contaminants that others miss

    A new material can pull a toxic, hard-to-degrade industrial chemical from drinking water more effectively than current methods.

    Perfluorooctanoic acid, or PFOA, hangs around in the environment for years and might cause health problems for people and animals. A new polymer material traps PFOA molecules, making them easy to filter out of water, researchers report in the June 14 Journal of...

    06/20/2017 - 16:23 Toxicology, Pollution
  • News

    Epigenetic marks may help assess toxic exposure risk — someday

    Nearly everything people do, eat or come into contact with can change them in little ways — sometimes with big consequences. Exposure to some chemicals can damage DNA, leading to cancer and other problems. Other molecular changes—chemical tags added to DNA or to proteins called histones — may affect health without injuring DNA.

    There are more than 100 varieties of these chemical tags,...

    12/09/2016 - 06:00 Epigenetics, Toxicology
  • Editor's Note

    Finding wonders in fat

    Who knew body fat held such hidden treasures? Scientists have found some serious loot in that bemoaned organ, including a vigorous population of flexible stem cells that can be coaxed into acting as new cartilage or tendons for damaged joints. Fat’s gems may also find uses in building new bone and repairing hearts, Susan Gaidos reports.

    One day such research might enable people to...

    03/09/2016 - 14:45 Quantum Physics, Physics, Toxicology, Health