Websites
https://www.epa.gov/environmental-topics/chemicals-and-toxics-topics
https://toxtown.nlm.nih.gov/ educators go to for environmental health
https://www.ecocenter.org/.../toxic-worries-safemarketsorg-website-helps-find-safer-pr
https://www.edf.org/health/chemicals/getting-toxics-out-what-we-buy
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