"The US Army Chemical Warfare Service invented Hexachloroethane (HC) smoke screens after World War I, but by the mid-1950s armed services around the world were well-aware of HC’s acute and chronic toxicity. The “smoke” produced by HC devices is gaseous Zinc Chloride (ZnCl2), a known lethal compound that induces heavy metal poisoning (“metal fume fever”); chemically burns dermal, bronchial, and gastrointestinal epithelia; and bioaccumulates. Despite well-established impacts, US Department of Homeland Security (DHS) agents deployed HC in Portland Oregon to quell Black Lives Matter protests in July 2020. I use a hierarchical Bayesian model that combined multiple observation streams to compile community-collected video and photographic evidence and estimate that DHS deployed enough grenades to kill or maim hundreds of people."
https://zenodo.org/records/4434918
desirable_dialogue
npub1g0…9xcc7
2025-07-05 20:53:06 UTC
in reply to nevent1q…l787
Author Public Key
npub1g04s33crvcwe5zscu7uvvwfszllrf5uj94lw96fl6kh3mct0q7gq69xcc7Seen on
wss://relay.momostr.pinkPublished at
2025-07-05 20:53:06 UTCEvent JSON
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"content": "\"The US Army Chemical Warfare Service invented Hexachloroethane (HC) smoke screens after World War I, but by the mid-1950s armed services around the world were well-aware of HC’s acute and chronic toxicity. The “smoke” produced by HC devices is gaseous Zinc Chloride (ZnCl2), a known lethal compound that induces heavy metal poisoning (“metal fume fever”); chemically burns dermal, bronchial, and gastrointestinal epithelia; and bioaccumulates. Despite well-established impacts, US Department of Homeland Security (DHS) agents deployed HC in Portland Oregon to quell Black Lives Matter protests in July 2020. I use a hierarchical Bayesian model that combined multiple observation streams to compile community-collected video and photographic evidence and estimate that DHS deployed enough grenades to kill or maim hundreds of people.\"\nhttps://zenodo.org/records/4434918",
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