Air Quality
Excellent
No health implications.
20
PM2.5
33
PM10
89
O3
0.7
CO
10
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Nov
61
Good
Fri
8 Nov
53
Good
Sat
9 Nov
52
Good
Sun
10 Nov
44
Excellent
Mon
11 Nov
50
Excellent
Tue
12 Nov
47
Excellent
Wed
13 Nov
52
Good
Air quality in the last 12 months (Chenghai)
|
2024/10
|
22
|
21
|
29
|
26
|
26
|
37
|
30
|
21
|
30
|
36
|
45
|
40
|
36
|
35
|
29
|
28
|
29
|
46
|
45
|
25
|
23
|
37
|
34
|
34
|
40
|
40
|
48
|
26
|
28
|
53
|
39
|
|
2024/09
|
31
|
43
|
41
|
31
|
26
|
16
|
16
|
14
|
18
|
31
|
54
|
39
|
33
|
29
|
21
|
28
|
28
|
25
|
31
|
18
|
15
|
19
|
14
|
16
|
24
|
32
|
31
|
26
|
33
|
34
|
|
|
2024/08
|
27
|
31
|
31
|
40
|
40
|
36
|
33
|
41
|
40
|
33
|
34
|
36
|
37
|
29
|
28
|
24
|
13
|
20
|
14
|
13
|
16
|
29
|
25
|
27
|
51
|
41
|
46
|
41
|
39
|
26
|
21
|
|
2024/07
|
23
|
20
|
13
|
17
|
16
|
17
|
16
|
13
|
15
|
18
|
18
|
22
|
19
|
16
|
20
|
18
|
15
|
15
|
18
|
19
|
16
|
16
|
35
|
32
|
38
|
16
|
22
|
23
|
26
|
21
|
29
|
|
2024/06
|
20
|
13
|
23
|
27
|
23
|
34
|
19
|
21
|
25
|
23
|
18
|
24
|
23
|
25
|
29
|
19
|
19
|
17
|
17
|
16
|
22
|
23
|
22
|
16
|
16
|
17
|
20
|
19
|
25
|
43
|
|
|
2024/05
|
33
|
20
|
24
|
30
|
27
|
40
|
40
|
44
|
44
|
32
|
39
|
44
|
30
|
33
|
35
|
53
|
36
|
46
|
36
|
21
|
17
|
14
|
17
|
16
|
19
|
24
|
22
|
26
|
31
|
25
|
34
|
|
2024/04
|
27
|
43
|
35
|
42
|
29
|
22
|
17
|
39
|
21
|
40
|
44
|
52
|
50
|
36
|
48
|
52
|
37
|
27
|
40
|
47
|
27
|
39
|
32
|
28
|
26
|
23
|
20
|
19
|
28
|
22
|
|
|
2024/03
|
16
|
20
|
37
|
45
|
91
|
52
|
27
|
61
|
59
|
52
|
51
|
36
|
66
|
74
|
92
|
87
|
100
|
55
|
59
|
58
|
58
|
54
|
59
|
40
|
37
|
39
|
38
|
53
|
54
|
58
|
33
|
|
2024/02
|
58
|
36
|
33
|
37
|
37
|
29
|
25
|
10
|
25
|
73
|
69
|
55
|
61
|
80
|
59
|
44
|
34
|
44
|
38
|
33
|
21
|
23
|
22
|
40
|
47
|
45
|
39
|
36
|
61
|
||
|
2024/01
|
70
|
64
|
54
|
38
|
57
|
70
|
71
|
66
|
59
|
46
|
73
|
82
|
62
|
44
|
64
|
42
|
35
|
50
|
63
|
47
|
26
|
27
|
16
|
31
|
45
|
64
|
74
|
71
|
86
|
67
|
65
|
|
2023/12
|
38
|
46
|
42
|
38
|
35
|
35
|
35
|
47
|
62
|
63
|
64
|
43
|
28
|
43
|
60
|
23
|
24
|
33
|
35
|
19
|
22
|
45
|
39
|
37
|
44
|
58
|
74
|
63
|
46
|
68
|
83
|
|
2023/11
|
34
|
31
|
40
|
48
|
54
|
54
|
43
|
43
|
47
|
51
|
25
|
24
|
26
|
33
|
35
|
34
|
56
|
59
|
59
|
47
|
43
|
42
|
54
|
70
|
46
|
38
|
56
|
62
|
53
|
53
|
|
|
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