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Washington County paper mill deaths confirmed to be caused by hydrogen sulfide

The deaths were ruled accidental, and investigators said the mill leak may have involved sulfuric acid and sulfurous compounds that generated hydrogen sulfide.

Kasie Malcolm and Allen Hornberger died after a Jan. 27 gas leak at the Woodland Pulp mill.

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Lewiston Sun JournalLewiston Sun Journal
+3 Reposted by 3 other sources
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Washington County paper mill deaths confirmed to be caused by hydrogen sulfide

Kasie Malcolm and Allen Hornberger died after a Jan. 27 gas leak at the Woodland Pulp mill.

·Lewiston, United States
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Portland Press Herald broke the news in Portland, United States on Thursday, June 11, 2026.
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