AMBIENT AIR QUALITY DATA
YEAR - 2004

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

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

S.No.

State

City

Location

Type

Average

(mg/m3)

Std.

Deviation

n

Air Quality

1

Kerala

Kochi

Eloor

I

32

26

78

L

Irumpanam

I

4

5

91

L

Ernakulum south

R

5

5

96

L

Tiruvanantha-puram

Hitech Chackai

I

22

4

93

L

SMV School

R

9

3

105

L

Sasthamangalam

R

6

2

103

L

PRS Hospital

S

5

1

20

-

Kozhikode

Nallalam

I

BDL

0.3

96

L

Kozhikode City

R

BDL

1

105

L

Kottayam

Vadavathoor

I

BDL

0.2

95

L

Kottayam

R

BDL

1

94

L

Palakkad

M/s Carborandum Universal Ltd./ SEPR Refractories India Ltd. , Kanjikode

I

BDL

1

120

L

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

S.No.

State

City

Location

Type

Average

(mg/m3)

Std.

Deviation

n

Air Quality

1

Kerala

Kochi

Eloor

I

15

12

85

L

Irumpanam

I

BDL

4

91

L

Ernakulum south

R

11

6

96

L

Tiruvanantha-puram

Hitech Chackai

I

18

4

93

L

SMV School

R

28

5

105

L

Sasthamangalam

R

18

4

103

L

PRS Hospital

S

27

2

20

-

Kozhikode

Nallalam

I

BDL

1

96

L

Kozhikode City

R

BDL

6

105

L

Kottayam

Vadavathoor

I

BDL

2

95

L

Kottayam

R

21

3

94

L

Palakkad

M/s Carborandum Universal Ltd./ SEPR Refractories India Ltd. , Kanjikode

I

BDL

2

120

L

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

S.No.

State

City

Location

Type

Average

(mg/m3)

Std.

Deviation

n

Air Quality

1

Kerala

Kochi

Eloor

I

67

21

85

M

Irumpanam

I

62

29

91

M

Ernakulum south

R

50

15

96

M

Tiruvanantha-puram

Hitech Chackai

I

126

25

93

H

SMV School

R

125

38

104

C

Sasthamangalam

R

78

17

103

H

PRS Hospital

S

86

15

20

-

Kozhikode

Nallalam

I

58

12

98

L

Kozhikode City

R

55

12

106

M

Palakkad

M/s Carborandum Universal Ltd./ SEPR Refractories India Ltd. , Kanjikode

I

107

54

120

M

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

S.No.

State

City

Location

Type

Average

(mg/m3)

Std.

Deviation

n

Air Quality

1

Kerala

Kochi

Eloor

I

122

25

85

L

Irumpanam

I

113

29

91

L

Ernakulum south

R

100

23

96

M

Tiruvanantha-puram

Hitech Chackai

I

134

25

93

L

SMV School

R

134

39

104

M

Sasthamangalam

R

86

18

103

M

PRS Hospital

S

94

15

20

-

Kozhikode

Nallalam

I

75

16

98

L

Kozhikode City

R

89

19

106

M

Palakkad

M/s Carborandum Universal Ltd./ SEPR Refractories India Ltd. , Kanjikode

I

191

52

120

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 (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)