Question

ways to check air pollution​

Answer 1

Answer:

I got the answer

Explanation:

1. active (semi automatic) sampling

2. photochemical and optical sensor systems

3. remote optical /long-path monitoring

4. passive monitoring . diffusion tubes absorb a specific pollutant from the ambient air - no power supply is needed.

thank you

by Fathima zahra

Answer 2

Answer:

Hope this may help you...