![The permissible concentration of PM 10 in the air is](https://www.gkseries.com/blog/wp-content/uploads/2021/12/The-permissible-concentration-of-PM-10-in-the-air-is.png)
Q. The permissible concentration of PM 10 in the air is
- 60μg/m3
- 40μg/m3
- 50μg/m3
- 20μg/m3
Answer: 60μg/m3
Answer: 60μg/m3
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