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並前往https://www.dcceew.gov.au/environment/protection/npi/substances/fact-sheets/particulate-matter-pm10-and-pm25

Particulate matter (PM10 and PM2.5) - DCCEEW

Particles in the PM10 size range are commonly present in air and may ... 50 µg/m3 in outdoor air averaged over a 24-hour period; 25 µg/m3 in ...

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