AMBIENT AIR QUALITY DATA
YEAR - 2004

Annual average Concentration in mg/m3 in Himachal Pradesh under National Air Quality Monitoring Programme (NAMP)

Table 1: Summary of SO2 levels in various cities during 2004.

S.no.

State

City

Location

Type of Area

Average

Std. Dev.

n

Air Quality

 

 

 

 

 

1

 

 

 

Himachal Pradesh

Shimla

Tekka Bench, The Ridge

S

BDL

1

138

L

Bus Stand

R

6

2

123

L

Parwanoo

AC Office Building,

I

BDL

1

113

L

Regional Office

R

BDL

1

127

L

Damtal

Regional Office

R

4

1

133

L

Old Road

R

5

1

134

L

Paonta Sahib

Industrial Area, Gondpur

I

BDL

1

112

L

Paonta Sahib

R

BDL

0.4

118

L

Table 2: Summary of NO2 levels in various cities during 2004.

S.no.

State

City

Location

Type of Area

Average

Std. Dev.

n

Air Quality

 

 

 

 

 

1

 

 

 

Himachal Pradesh

Shimla

Tekka Bench, The Ridge

S

11

5

138

L

Bus Stand

R

19

6

123

L

Parwanoo

AC Office Building

I

12

3

113

L

Regional Office

R

9

4

127

L

Damtal

Regional Office

R

15

2

133

L

Old Road

R

18

3

135

L

Paonta Sahib

Industrial Area, Gondpur

I

BDL

4

112

L

Paonta Sahib

R

9

2

118

L

Table 3: Summary of RSPM levels in various cities during 2004.

S.no.

State

City

Location

Type of Area

Average

Std. Dev.

n

Air Quality

 

1

 

Himachal Pradesh

Shimla

Tekka Bench, The Ridge

S

9

3

139

L

Bus Stand

R

14

6

127

L

Parwanoo

Regional Office

R

74

41

133

H

Table 4: Summary of SPM levels in various cities during 2004.

S.no.

State

City

Location

Type of Area

Average

Std. Dev.

n

Air Quality

 

 

 

 

 

1

 

 

Himachal Pradesh

Shimla

Tekka Bench, The Ridge

S

48

10

139

M

Bus Stand

R

64

12

127

L

Parwanoo

AC Office Building

I

256

121

118

M

Regional Office

R

147

74

133

H

Damtal

Regional Office

R

129

37

139

M

Old Road

R

214

47

140

C

Paonta Sahib

Industrial Area, Gondpur

I

386

152

111

H

Paonta Sahib

R

276

129

119

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 (calculated for n ³50 days)

BDL = Below Detection Limit (Concentration less than 4 mg/m3 for SO2)
BDL = Below Detection Limit (Concentration less than 9 mg/m3 for NO2)