Forever chemicals are entering the Great Lakes mainly through rainfall, new research has found.The chemicals, called Perfluoroalkyl and polyfluoroalkyl substances , have become prominent in the environment. They are used in many everyday items such as food packaging and toilet paper, but they break down very slowly, meaning they remain in the environment for a very long period of time, or as the name suggests, forever.
To reach their findings, researchers studied 60 air samples and 207 precipitation samples between 2021 and 2022. These were all from regions surrounding the Great Lakes. They also analyzed 87 water samples from the five Great Lakes and looked at all of them for 41 types of forever chemicals.In the rain samples, they found that the amount of PFAS stayed similar around all five lakes which indicates that population density does not appear to affect these concentrations.
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