Ambient Air Quality of Bongaigaon for August 2005

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
4 11.67 7.92 7.38 4 12.25 8.02 5.26 .. .. .. .. 4 36.33 33.08

9.32

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


Ambient Air Quality of Bongaigaon for September 2005

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
3 6.17 3.61 2.15 3 5.42 5.00 1.50 .. .. .. .. 3 117.67 93.33 49.31

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


Ambient Air Quality of Bongaigaon for October 2005

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
5 5.66 4.13 2.25 5 17.66 13.08 5.48 .. .. .. .. 5 55.33 40.53 20.26

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.