Study says Portland tear gas concentrations far exceeded safe levels in 2020 - A human rights research group estimates that in some parts of downtown Portland on June 2, 2020, the tear gas concentration was more than 2,200 times the safe limit. - ideatrash - news

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Study says Portland tear gas concentrations far exceeded safe levels in 2020 - A human rights research group estimates that in some parts of downtown Portland on June 2, 2020, the tear gas concentration was more than 2,200 times the safe limit.

uspol · police · protest · PublicHealth

April 18, 2023 at 3:38:45 AM EDT * · permalink

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https://www.opb.org/article/2023/04/17/study-2020-portland-oregon-protests-tear-gas-concentrations-far-exceeded-safe-levels/

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