Air Quality
Excellent
No health implications.
13
PM2.5
47
PM10
52
O3
0.6
CO
14
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
58
Good
Wed
30 Apr
50
Excellent
Thu
1 May
56
Good
Fri
2 May
57
Good
Sat
3 May
59
Good
Sun
4 May
40
Excellent
Mon
5 May
50
Excellent
Air quality in the last 12 months (Chikan)
|
2025/02
|
28
|
22
|
33
|
22
|
43
|
47
|
46
|
40
|
57
|
46
|
33
|
43
|
56
|
28
|
26
|
34
|
61
|
56
|
44
|
35
|
30
|
44
|
49
|
26
|
54
|
75
|
64
|
37
|
|||
|
2025/01
|
93
|
77
|
97
|
63
|
80
|
95
|
58
|
59
|
86
|
61
|
52
|
48
|
54
|
70
|
54
|
70
|
65
|
57
|
78
|
81
|
78
|
47
|
46
|
39
|
33
|
25
|
42
|
48
|
109
|
50
|
41
|
|
2024/12
|
51
|
48
|
44
|
46
|
41
|
58
|
71
|
37
|
46
|
51
|
46
|
46
|
45
|
51
|
58
|
54
|
58
|
57
|
50
|
50
|
77
|
66
|
66
|
69
|
74
|
78
|
86
|
70
|
79
|
66
|
83
|
|
2024/11
|
52
|
47
|
53
|
43
|
51
|
56
|
59
|
59
|
67
|
60
|
46
|
65
|
81
|
71
|
61
|
46
|
29
|
37
|
36
|
19
|
28
|
37
|
35
|
41
|
30
|
29
|
43
|
49
|
46
|
48
|
|
|
2024/10
|
43
|
30
|
48
|
49
|
49
|
50
|
48
|
59
|
56
|
56
|
50
|
37
|
34
|
34
|
30
|
29
|
23
|
17
|
21
|
30
|
36
|
43
|
23
|
37
|
46
|
46
|
37
|
23
|
24
|
34
|
50
|
|
2024/09
|
15
|
23
|
39
|
36
|
45
|
19
|
25
|
33
|
25
|
17
|
19
|
26
|
31
|
48
|
39
|
37
|
26
|
23
|
27
|
23
|
27
|
13
|
17
|
16
|
37
|
41
|
40
|
34
|
30
|
36
|
|
|
2024/08
|
23
|
24
|
22
|
27
|
26
|
24
|
32
|
28
|
30
|
31
|
27
|
27
|
22
|
28
|
21
|
22
|
18
|
17
|
21
|
20
|
23
|
25
|
25
|
34
|
25
|
32
|
26
|
27
|
22
|
25
|
14
|
|
2024/07
|
27
|
25
|
20
|
16
|
11
|
11
|
11
|
15
|
14
|
17
|
19
|
18
|
14
|
15
|
18
|
15
|
14
|
13
|
13
|
18
|
13
|
14
|
18
|
22
|
21
|
24
|
25
|
20
|
10
|
12
|
21
|
|
2024/06
|
22
|
32
|
24
|
17
|
14
|
14
|
15
|
16
|
25
|
22
|
24
|
27
|
25
|
27
|
30
|
35
|
33
|
33
|
24
|
26
|
19
|
13
|
12
|
15
|
18
|
15
|
14
|
16
|
22
|
27
|
|
|
2024/05
|
25
|
22
|
16
|
20
|
27
|
27
|
29
|
23
|
38
|
38
|
34
|
24
|
27
|
32
|
30
|
34
|
44
|
31
|
23
|
24
|
22
|
23
|
15
|
17
|
17
|
19
|
28
|
19
|
28
|
25
|
23
|
|
2024/04
|
42
|
41
|
38
|
59
|
28
|
36
|
38
|
35
|
32
|
35
|
44
|
35
|
35
|
36
|
33
|
35
|
32
|
27
|
36
|
45
|
23
|
24
|
39
|
35
|
31
|
48
|
55
|
43
|
36
|
44
|
|
|
2024/03
|
24
|
45
|
54
|
37
|
49
|
48
|
51
|
46
|
42
|
25
|
28
|
32
|
35
|
48
|
59
|
54
|
38
|
28
|
31
|
41
|
54
|
47
|
44
|
41
|
40
|
34
|
32
|
44
|
32
|
32
|
42
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution