AMBIENT AIR QUALITY DATA
YEAR - 2004

Annual Average Concentration in µg/m3 of Air Pollutants in Chandigarh under NAMP

Table 1: Summary of SO2 levels in Chandigarh during 2004.

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(µg/m3)

Std.
deviation

n

Air Quality

1

Chandigarh

Chandigarh

Industrial Area

I

7

6

106

L

Sector 17C

R

5

5

112

L

Punjab Engg. College

R

6

5

50

L

Table 2: Summary of NO2 levels in Chandigarh during 2004.

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(µg/m3)

Std.
deviation

n

Air Quality

1

Chandigarh

Chandigarh

Industrial Area

I

37

19

107

L

Sector 17C

R

26

13

112

L

Punjab Engg. College

R

26

11

50

L

Table 3: Summary of RSPM levels in Chandigarh during 2004.

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(µg/m3)

Std.
deviation

n

Air Quality

1

Chandigarh

Chandigarh

Industrial Area

I

136

69

107

H

Sector 17C

R

104

64

115

C

Punjab Engg. College

R

83

37

50

H

Table 4: Summary of SPM levels in Chandigarh during 2004.

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(µg/m3)

Std.
deviation

n

Air Quality

1

Chandigarh

Chandigarh

Industrial Area

I

369

152

110

H

Sector 17C

R

224

148

114

C

Punjab Engg. College

R

165

63

50

H

Note:- R Residential and other areas, I Industrial area, Std deviation Standard deviation,

n number of days monitored for 16 and more hours a day

L- Low, M- Moderate, H High and C Critical levels of pollution based on exceedence factor