Ambient Air Quality of Bongaigaon for January 2007
|
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
|
9 | 6.83 | 3.59 | 2.10 | 9 | 12.00 | 8.72 | 3.85 | 9 | 165.67 | 99.78 | 46.20 | 9 | 181.33 | 132.78 |
43.90 |
| *Campus of Oil India Ltd. PS-6, Bongaigaon |
R
|
4 | 4.25 | 3.38 | 1.75 | 4 | 13.00 | 12.34 | 3.05 | 4 | 155.50 | 111.88 | 47.71 | 9 | 280.50 | 228.00 |
66.13 |
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 24 hours a day (* for 16 hours a day).
Ambient Air Quality of Bongaigaon for February 2007
|
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
|
6 | 6.33 | 4.00 | 2.09 | 6 | 12.00 | 9.63 | 4.71 | 6 | 73.50 | 36.19 | 17.84 | 6 | 212.00 | 75.33 | 55.96 |
| *Campus of Oil India Ltd. PS-6, Bongaigaon |
R
|
7 | 4.75 | 3.00 | 1.81 | 7 | 13.25 | 7.77 | 3.78 | 7 | 76.50 | 47.71 | 21.47 | 7 | 153.50 | 82.79 |
38.57 |
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 24 hours a day (* for 16 hours a day).
Ambient Air Quality of Bongaigaon for March 2007
|
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
|
9 | 6.67 | 3.56 | 2.15 | 9 | 12.25 | 9.22 | 4.15 | 9 | 89.33 | 61.30 | 21.34 | 9 | 180.33 | 121.52 | 52.48 |
| *Campus of Oil India Ltd. PS-6, Bongaigaon |
R
|
9 | 8.75 | 4.11 | 2.41 | 9 | 15.25 | 11.51 | 3.43 | 9 | 111.50 | 81.11 | 20.88 | 9 | 295.00 | 192.11 |
79.08 |
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 24 hours a day (* for 16 hours a day).