PM2.5: Revision history

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28 July 2023

  • curprev 10:1610:16, 28 July 2023USEV talk contribs 779 bytes +779 Created page with "=== '''Definition''' === PM2.5 particles are those with diameters of less than 2.5 micrometres*. They are therefore a subset of PM10 particles and more harmful than PM10, as they can reach further into the lungs and can be more toxic. PM2.5 particles are usually composed mainly of secondary particles formed in the atmosphere from some of the gaseous precursors. === '''Legislation and intervals''' === According to World Health Organization: The limit value for PM2.5 i..."