Ambient Air Quality of Silchar for July 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.
Office Building RLO, Ithkola Market, Ghaniwala Rd., Silchar Assam
R
9 7.75 4.94 1.91 9 18.50 15.31 3.05 9 54.50 38.39 10.32 9 82.50 62.17

15.06

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 Silchar for August 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.
Office Building RLO, Ithkola Market, Ghaniwala Rd., Silchar Assam
R
8 7.00 5.75 1.95 8 17.50 15.20 3.93 8 63.50 45.31 13.47 8 92.50 62.31 16.19

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 Silchar for September 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.
Office Building RLO, Ithkola Market, Ghaniwala Rd., Silchar Assam
R
9 5.75 4.61 1.96 9 17.50 14.35 3.54 9 61.50 41.11 15.78 9 104.50 73.72 25.44

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 Silchar for October 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.
Office Building RLO, Ithkola Market, Ghaniwala Rd., Silchar Assam
R
10 8.50 6.20 2.48 10 19.50 15.63 3.37 10 98.50 53.60 31.05 10 165.00 103.45

50.43

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 Silchar for November 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.
Office Building RLO, Ithkola Market, Ghaniwala Rd., Silchar Assam
R
8 10.75 7.84 2.45 8 21.25 18.41 2.98 8 160.00 67.69 59.67 8 271.00 120.88 95.11

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 Silchar for December 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.
Office Building RLO, Ithkola Market, Ghaniwala Rd., Silchar Assam
R
10 8.00 7.28 1.99 10 20.25 16.15 3.56 10 80.50 55.00 18.93 10 166.00 118.45 39.95

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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