Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
22
PM2.5
51
*
PM10
50
O3
0.9
CO
3
SO2
35
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
15 Jul
57
Good
Wed
16 Jul
58
Good
Thu
17 Jul
69
Good
Fri
18 Jul
57
Good
Sat
19 Jul
62
Good
Sun
20 Jul
53
Good
Mon
21 Jul
32
Excellent
Air quality in the last 12 months (Chenghai)
|
2025/06
|
40
|
32
|
21
|
23
|
34
|
31
|
35
|
26
|
23
|
20
|
25
|
27
|
19
|
32
|
30
|
18
|
20
|
26
|
15
|
16
|
16
|
17
|
23
|
19
|
21
|
16
|
14
|
14
|
12
|
15
|
|
|
2025/05
|
55
|
55
|
48
|
36
|
39
|
33
|
37
|
49
|
39
|
29
|
27
|
42
|
41
|
42
|
32
|
21
|
21
|
26
|
27
|
24
|
22
|
31
|
28
|
26
|
24
|
37
|
40
|
34
|
15
|
24
|
37
|
|
2025/04
|
22
|
43
|
51
|
53
|
37
|
46
|
65
|
68
|
66
|
47
|
41
|
43
|
123
|
104
|
98
|
80
|
64
|
57
|
38
|
37
|
37
|
34
|
34
|
33
|
17
|
20
|
34
|
50
|
40
|
45
|
|
|
2025/03
|
108
|
37
|
30
|
24
|
14
|
17
|
23
|
33
|
39
|
44
|
59
|
72
|
61
|
25
|
54
|
15
|
42
|
56
|
46
|
50
|
53
|
52
|
63
|
77
|
72
|
51
|
29
|
50
|
34
|
14
|
12
|
|
2025/02
|
61
|
23
|
15
|
35
|
56
|
42
|
23
|
38
|
43
|
36
|
50
|
56
|
63
|
39
|
51
|
83
|
57
|
51
|
31
|
30
|
26
|
25
|
37
|
32
|
52
|
59
|
65
|
115
|
|||
|
2025/01
|
52
|
62
|
63
|
48
|
56
|
59
|
54
|
55
|
60
|
49
|
49
|
45
|
50
|
56
|
83
|
99
|
58
|
49
|
59
|
57
|
57
|
73
|
70
|
34
|
33
|
28
|
26
|
39
|
58
|
41
|
44
|
|
2024/12
|
52
|
59
|
58
|
45
|
41
|
39
|
49
|
39
|
44
|
32
|
43
|
34
|
31
|
53
|
54
|
53
|
56
|
53
|
56
|
47
|
46
|
67
|
53
|
44
|
42
|
50
|
61
|
87
|
66
|
62
|
72
|
|
2024/11
|
29
|
19
|
32
|
44
|
43
|
42
|
30
|
35
|
33
|
33
|
41
|
37
|
23
|
29
|
40
|
23
|
26
|
23
|
15
|
12
|
15
|
26
|
31
|
28
|
32
|
20
|
32
|
34
|
37
|
47
|
|
|
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
|
|
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