Ambient Air Quality of Dibrugarh for July 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.
Dibrugarh Office Building, Dibrugarh RO
R
8 6.25 4.41 2.14 8 14.75 11.23 3.76 8 64.00 39.63 18.73 8 129.50 87.19

31.76

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 Dibrugarh for August 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.
Dibrugarh Office Building, Dibrugarh RO
R
8 5.75 4.38 2.09 8 12.50 10.03 3.16 8 52.00 36.94 14.58 8 93.00 63.69 22.50

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 Dibrugarh for September 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.
Dibrugarh Office Building, Dibrugarh RO
R
6 7.00 5.42 2.02 6 14.00 11.88 2.21 6 47.50 37.33 10.92 6 83.00 65.58 17.89

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 Dibrugarh for October 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.
Dibrugarh Office Building, Dibrugarh RO
R
10 6.00 4.35 1.85 10 12.50 10.11 3.20 10 86.00 56.25 27.33 10 153.50 93.00 36.20

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 Dibrugarh for November 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.
Dibrugarh Office Building, Dibrugarh RO
R
9 6.75 4.67 14.25 9 14.25 10.85 3.54 9 183.50 81.44 81.57 9 209.00 114.56 89.17

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 Dibrugarh for December 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.
Dibrugarh Office Building, Dibrugarh RO
R
7 6.25 4.89 1.79 7 14.25 11.63 3.51 7 151.50 102.57 39.14 7 215.50 154.50 58.50

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.

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