|
Ambient
Air Quality of Chennai for January 2005
| Location |
Type of Area |
Sulphur dioxide |
Nitrogen dioxide |
Respirable Suspended Particulate Matter |
Suspended Particulate Matter |
| Avg. |
Std. Dev |
n |
Avg. |
Std. Dev |
n |
Avg. |
Std. Dev |
n |
Avg. |
Std. Dev |
n | |
Thiruvottiyur Municipal Office |
I |
9 |
2 |
8 |
12 |
4 |
8 |
60 |
42 |
8 |
188 |
66 |
8 | |
Kathivakkam | I |
27 |
6 |
8 |
31 |
5 |
8 |
62 |
23 |
8 |
92 |
31 |
8 | |
Manali | I |
32 |
7 |
10 |
31 |
7 |
10 |
108 |
31 |
10 |
204 |
39 |
10 | |
Thiruvottiyur | I |
25 |
1 |
5 |
19 |
3 |
5 |
86 |
51 |
5 |
120 |
50 |
5 | |
Madras Medical College |
R |
8 |
3 |
8 |
11 |
4 |
8 |
48 |
27 |
8 |
154 |
44 |
8 | |
NEERI CSIR Campus |
R |
4 |
3 |
8 |
5 |
1 |
8 |
39 |
30 |
8 |
134 |
104 |
8 | Ambient
Air Quality of Chennai for February 2005
| Location |
Type of Area |
Sulphur dioxide |
Nitrogen dioxide |
Respirable Suspended Particulate Matter |
Suspended Particulate Matter |
| Avg. |
Std. Dev |
n |
Avg. |
Std. Dev |
N |
Avg. |
Std. Dev |
n |
Avg. |
Std. Dev |
n | |
Kathivakkam | I |
20 |
4 |
8 |
26 |
11 |
8 |
75 |
32 |
8 |
127 |
70 |
8 | |
Manali | I |
21 |
7 |
8 |
27 |
7 |
8 |
90 |
23 |
8 |
175 |
33 |
8 | |
Thiruvottiyur | I |
16 |
3 |
8 |
23 |
8 |
8 |
78 |
25 |
8 |
115 |
37 |
8 |
Ambient Air Quality
of Chennai for March 2005
| Location |
Type of Area |
Sulphur dioxide |
Nitrogen dioxide |
Respirable Suspended Particulate Matter |
Suspended Particulate Matter |
| Avg. |
Std. Dev |
n |
Avg. |
Std. Dev |
n |
Avg. |
Std. Dev |
n |
Avg. |
Std. Dev |
n | |
Kathivakkam | I |
16 |
4 |
10 |
38 |
6 |
10 |
85 |
14 |
10 |
136 |
32 |
10 | |
Manali | I |
15 |
4 |
9 |
36 |
5 |
9 |
91 |
23 |
9 |
188 |
21 |
9 | |
Thiruvottiyur | I |
17 |
1 |
8 |
37 |
9 |
8 |
73 |
11 |
8 |
113 |
26 |
8 | Note:-
I – Industrial Areas, R – Residential and Other Areas
Avg. – Average concentration in mg/m3,
Std Dev. – standard deviation, n – number of days on which monitoring is carried
out for 16 and more hours a day | 
