AMBIENT AIR QUALITY DATA
YEAR - 2004


Annual Average Concentration of Air Pollutants under National Air Quality Monitoring Programme (NAMP)

 

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

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(mg/m3)

Std.
deviation

n

Air Quality

1

Delhi

Delhi

Mayapuri Industrial Area

I

12

6

96

L

Sarojini Nagar

R

7

3

95

L

Town hall

R

11

6

95

L

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

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(mg/m3)

Std.
deviation

n

Air Quality

1

Delhi

Delhi

Mayapuri Industrial Area

I

56

26

96

M

Sarojini Nagar

R

53

24

95

M

Town hall

R

60

31

93

H

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

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(mg/m3)

Std.

deviation

n

Air Quality

1

Delhi

Delhi

Mayapuri Industrial Area

I

213

134

96

C

Sarojini Nagar

R

151

94

94

C

Town hall

R

167

108

95

C

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

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(mg/m3)

Std.
deviation

n

Air Quality

1

Delhi

Delhi

Mayapuri Industrial Area

I

484

189

93

H

Sarojini Nagar

R

356

149

93

C

Town hall

R

508

196

91

C

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