A petition was filed with the Environmental Protection Agency in 2016 requesting it to regulate use of
lead-containing fishing weights.
https://www.epa.gov/assessing-and-managing-chemicals-under-tsca/tsca-section-21-petition-requesting-epa-regulate-lead-0 (Links to an external site.)
When fishing lines break, these weights usually fall and accumulate at the bottoms of rivers, lakes, and other water reservoirs. Explain why lead accumulation can become an environmental problem. In your answer, address the following questions: