DYK what particulate matter (PM) is?
Follow this thread today and later this week to learn more about PM, how it impacts your health, and how we can reduce PM levels. 🧵
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PM is a mixture of solid particles and liquid droplets in the air. Particles like dust, dirt, soot, or smoke are large or dark enough to be seen with the naked eye. Others are so small they can only be detected using an electron microscope.
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PM includes:
PM10: Inhalable particles, with diameters that are generally 10 micrometers and smaller.
PM2.5: Inhalable fine particles, with diameters that are generally 2.5 micrometers and smaller.
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How small is 2.5 micrometers? Think about a single hair from your head. The average human hair is about 70 micrometers in diameter – making it 30 times larger than the largest fine particle.
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