Ambient Air Quality of Bongaigaon for April 2009
|
Location
|
Type
of Area
|
Sulphur
dioxide
|
Nitrogen
dioxide
|
Respirable
Suspended Particulate Matter
|
Suspended
Particulate Matter
|
||||||||||||
| n |
Max.
|
Avg.
|
Std.
Dev.
|
n |
Max. |
Avg. |
Std.
Dev.
|
n |
Max.
|
Avg.
|
Std.
Dev.
|
n |
Max.
|
Avg. | Std. Dev. | ||
| Barpara Office Building, Bongaigaon |
R
|
10 | 10.00 | 7.20 | 2.33 | 10 | 22.75 | 16.63 | 4.42 | 10 | 92.50 | 41.05 | 26.05 | 10 | 178.50 | 80.00 |
37.63 |
| Campus of Oil India Ltd. PS-6, Bongaigaon |
R
|
10 | 9.25 | 7.53 | 2.16 | 10 | 24.00 | 18.18 | 4.55 | 10 | 110.00 | 56.60 | 25.96 | 10 | 156.00 | 105.15 |
37.55 |
Note:- R – Residential and Other Areas
Avg. – Average concentration in mg/m3 , Std Dev. – standard deviation, n – number of days for which monitoring is carried out for 16 hours a day.
Ambient Air Quality of Bongaigaon for May 2009
|
Location
|
Type
of Area
|
Sulphur
dioxide
|
Nitrogen
dioxide
|
Respirable
Suspended Particulate Matter
|
Suspended
Particulate Matter
|
||||||||||||
| n |
Max.
|
Avg.
|
Std.
Dev.
|
n |
Max. |
Avg. |
Std.
Dev.
|
n |
Max.
|
Avg.
|
Std.
Dev.
|
n |
Max.
|
Avg. | Std. Dev. | ||
| Barpara Office Building, Bongaigaon |
R
|
8 | 6.00 | 4.44 | 1.74 | 8 | 16.75 | 13.50 | 3.01 | 8 | 110.00 | 57.19 | 34.73 | 8 | 155.50 | 88.19 | 50.87 |
| Campus of Oil India Ltd. PS-6, Bongaigaon |
R
|
8 | 5.50 | 4.28 | 1.55 | 8 | 16.00 | 13.55 | 3.50 | 8 | 109.50 | 65.69 | 37.85 | 8 | 147.00 | 101.06 |
52.37 |
Note:- R – Residential and Other Areas
Avg. – Average concentration in mg/m3 , Std Dev. – standard deviation, n – number of days for which monitoring is carried out for 16 hours a day.
Ambient Air Quality of Bongaigaon for June 2009
|
Location |
Type
of Area
|
Sulphur
dioxide |
Nitrogen
dioxide |
Respirable
Suspended Particulate Matter |
Suspended
Particulate Matter |
||||||||||||
| n |
Max. |
Avg. |
Std.
Dev. |
n |
Max. |
Avg. |
Std.
Dev. |
n |
Max.
|
Avg. |
Std.
Dev. |
n |
Max.
|
Avg. | Std. Dev. | ||
| Barpara Office Building, Bongaigaon |
R |
8 | 6.75 | 5.22 | 1.68 | 8 | 19.00 | 15.36 | 3.60 | 8 | 50.50 | 32.50 | 10.51 |
8 |
76.00 |
50.94 |
16.01 |
| Campus of Oil India Ltd. PS-6, Bongaigaon |
R |
8 | 8.00 | 6.22 | 2.30 | 8 | 19.25 | 14.22 | 3.47 | 8 | 42.00 | 29.00 | 9.87 |
8 |
62.50 |
46.94 |
11.09 |
Note:- R – Residential and Other Areas
Avg. – Average concentration in mg/m3 , Std Dev. – standard deviation, n – number of days for which monitoring is carried out for 16 hours a day.