Microplastics 'pollution puzzle' in PNAS News feature

In May, PNAS published an article that describes how research developed from finding unexpectedly high numbers of plastic particles in the marine environment to developing methods for identification and to effect assessment ...

Using glowing fish to detect harmful pesticides

Birth defects related to chromosomal abnormalities often stem from exposure to chemicals early in the mother's life. But determining which chemicals are at fault poses a serious challenge—akin to solving a hit-and-run case, ...

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