The heavy metal is the same carcinogen Erin Brockovich warned about in the 1990s, but researchers say more study is needed on the potential health effects of nanoparticles detected earlier this year. Experts will answer questions at a webinar this evening.

<p data-pm-slice="0 0 []">The heavy metal is the same carcinogen Erin Brockovich warned about in the 1990s, but researchers say more study is needed on the potential health effects of nanoparticles detected earlier this year. Experts will answer questions at a webinar this evening.</p>