Q. For which of the following PM10 and PM2.5 Samplers are used?
Answer: Environment Pollution
Notes: PM10 is particulate matter with 10 mm or less in diameter and PM2.5 is particulate matter with 2.5 micrometers or less in diameter. These particles are formed by burning fuel and chemical reactions that take place in the atmosphere which results environment pollution. A new study showed that PM2.5 is more harmful than PM10.

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