AMBIENT AIR QUALITY DATA
YEAR - 2004

Annual Average Concentration of Air Pollutants (in mg/m3) in Meghalaya under National Air Quality Monitoring Programme (NAMP)

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

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(mg/m3)

Std.

deviation

n

Air Quality

1

Meghalaya

Shillong

Boards Office Premises

R

BDL

0.3

94

L

State Tuberculosis Hospital

R

5

2

66

L

 

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

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(mg/m3)

Std.

deviation

n

Air Quality

1

Meghalaya

Shillong

Boards Office Premises

R

5

0

94

L

State Tuberculosis Hospital

R

19

6

66

L

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

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(mg/m3)

Std.

deviation

n

Air Quality

1

Meghalaya

Shillong

Boards Office Premises

R

43

10

80

M

State Tuberculosis Hospital

R

71

27

64

H

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

S.No.

STATE/UT

CITY

LOCATION

Type of Area

Average
(mg/m3)

Std.

deviation

n

Air Quality

1

Meghalaya

Shillong

Boards Office Premises

R

48

12

80

L

State Tuberculosis Hospital

R

92

37

64

M

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