Chemicals, toxic pollutants, pesticides and heavy metals entered the Great Lakes; they flowed from thousands of factory discharge pipes and sewage plants.

4 окт. 2020 г. · By the 1960s, as a result, the waterways were also laden with toxic waste, much of it settling into the sediment, from steel mills, factories, ...

26 янв. 2018 г. · Researchers at the Michigan Tech Research Institute were surprised to find that lakes Michigan and Huron are now clearer than Lake Superior.

11 сент. 2021 г. · According to the recent study by the Rochester Institute of Technology, 22 million pounds of plastic are dumped into the Great Lakes every year ...

5 июн. 2024 г. · Testing by the Chicago Department of Water Management and the Illinois EPA detected forever chemicals in treated Lake Michigan water but at ...

19 апр. 2022 г. · Between 1948 and 1959, there was a substantial drop in the volume of oils and phenolic compounds discharged into the Great Lakes , while cyanide ...

PFAS is Michigan's most widespread, serious contamination problem since the PBB crisis of the 1970s.

15 авг. 2022 г. · Despite their enormous importance, the lakes were degraded for well over a century as industry and development expanded around them. By the ...

Around the 1850's, the city started drawing its water from the abundant, near pure drinking water of. Lake Michigan. At first water was drawn directly from the ...

The lake water along the southern coast has been seriously eutrophicated since the early 1970's. To counter this trend, a number of laws have been ...