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Talk:PPM

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Latest comment: 2 months ago by 80.235.236.18 in topic Ppm mean in environment

Ppm mean in environment

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Latest comment: 2 months ago2 comments2 people in discussion

What is ppm i think it is a unit of something? 37.111.134.45 15:07, 4 November 2024 (UTC)Reply

Parts per million. 80.235.236.18 15:13, 4 November 2024 (UTC)Reply
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