Air Parameters Monitored under NAMP

Sl. No.

Parameter

Method

Frequency

1

PM10

Gravimetric Method

Twice a week, 4 hourly sampling for 24 hours.

2

SPM

-do-

Twice a week, 4 hourly sampling for 24 hours.

3

SO2

Improved West & Gaeke Method

Twice a week, 8 hourly sampling for 24 hours.

4

NO2

Modified Jacobs & Hochheiser Method (Sodium Arsenite Method)

Twice a week, 8 hourly sampling for 24 hours.