Ambient Air Quality Status of Jammu and Kashmir
National Ambient Air Quality Standards (NAAQS)
Notified on 18th November, 2009
S.No.
|
Pollutant
|
Time Weighted Average
|
Industrial, Residential, Rural and Other Aea
|
Ecologically Sensitive Area (notified by Central Government)
|
Methods of Measurement
|
| 1 |
Sulphur Dioxide (SO2), µg/m3 |
Annual * |
50
|
20 |
-Improved West and Gaeke
-Ultraviolet flourescence
|
| 24 hours** |
80
|
80
|
| 2 |
Nitrogen Dioxide (NO2), µg/m3 |
Annual * |
40
|
30
|
-Modified Jacob & Hochheiser (Na-Arsenite)
-Chemiluminescence
|
| 24 hours** |
80
|
80
|
| 3 |
Particulate Matter (size less than 10 µm) or PM10 µg/m3 |
Annual * |
60
|
60
|
-Gravimetric
-TOEM
-Beta attenuation
|
24 hours** |
100
|
100
|
| 4 |
Particulate Matter (size less than 2.5µm) or PM2.5 µg/m3 |
Annual * |
40
|
40 |
-Gravimetric
-TOEM
-Beta attenuation
|
24 hours** |
60
|
60
|
* Annual arithmetic mean of minimum 104 measurements in a year at a particular site taken twice a week 24 hourly at uniform intervals.
** 24 hourly or 08 hourly or 01 hourly monitored values, as applicable, shall be complied with 98% of the time in a year. 2% of the time, they may exceed the limits but not on two consecutive days of monitoring.
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AMBIENT AIR QUALITY STATUS AT JAMMU CITY DURING OCT 2019- MARCH 20
AMBIENT AIR QUALITY STATUS AT SRINAGAR CITY DURING 2019- 20.