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"How Does Lead Affect Our Environment?". Pollutants and Toxicants: Environmental Lead (Pb). Department of Environmental Quality, State of Michigan. 2019. Archived from the original on April 19, 2019.1. “You Are HereDEQ Pollutants and Toxicants Environmental Lead (Pb).” DEQ - How Does Lead Affect Our Environment?, Agency: Environmental Quality, www.michigan.gov/deq/0,4561,7-135-3307_29693_30031-90418--,00.html.