Air Quality
Excellent
No health implications.
18
PM2.5
23
PM10
7
O3
1.0
CO
4
SO2
26
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Jun
49
Excellent
Sat
20 Jun
51
Good
Sun
21 Jun
53
Good
Mon
22 Jun
50
Excellent
Tue
23 Jun
51
Good
Wed
24 Jun
37
Excellent
Thu
25 Jun
37
Excellent
Air quality in the last 12 months (Chenghai)
|
2026/05
|
37
|
43
|
42
|
25
|
31
|
39
|
39
|
47
|
38
|
40
|
54
|
66
|
41
|
20
|
24
|
29
|
35
|
34
|
35
|
30
|
23
|
33
|
33
|
32
|
27
|
27
|
30
|
36
|
37
|
52
|
56
|
|
2026/04
|
31
|
31
|
44
|
51
|
28
|
38
|
40
|
38
|
43
|
36
|
32
|
30
|
29
|
25
|
32
|
36
|
37
|
48
|
41
|
42
|
34
|
34
|
26
|
18
|
29
|
44
|
50
|
39
|
33
|
24
|
|
|
2026/03
|
20
|
55
|
33
|
38
|
35
|
29
|
46
|
36
|
37
|
36
|
44
|
52
|
43
|
44
|
41
|
40
|
37
|
46
|
49
|
34
|
37
|
41
|
41
|
40
|
52
|
37
|
38
|
32
|
39
|
48
|
42
|
|
2026/02
|
31
|
35
|
46
|
50
|
58
|
51
|
35
|
41
|
37
|
37
|
45
|
44
|
48
|
46
|
40
|
39
|
37
|
39
|
39
|
54
|
54
|
61
|
60
|
80
|
43
|
24
|
43
|
11
|
|||
|
2026/01
|
40
|
25
|
35
|
51
|
49
|
27
|
42
|
50
|
53
|
53
|
58
|
59
|
67
|
51
|
60
|
62
|
68
|
60
|
61
|
35
|
39
|
44
|
46
|
46
|
40
|
58
|
62
|
30
|
40
|
45
|
30
|
|
2025/12
|
32
|
45
|
44
|
48
|
42
|
40
|
49
|
51
|
49
|
41
|
52
|
47
|
44
|
32
|
45
|
52
|
60
|
54
|
62
|
52
|
82
|
40
|
41
|
46
|
30
|
29
|
36
|
43
|
43
|
53
|
41
|
|
2025/11
|
28
|
40
|
45
|
23
|
22
|
31
|
30
|
36
|
46
|
28
|
25
|
18
|
20
|
28
|
41
|
44
|
43
|
36
|
23
|
39
|
39
|
52
|
54
|
58
|
43
|
60
|
52
|
64
|
74
|
56
|
|
|
2025/10
|
22
|
22
|
28
|
33
|
21
|
22
|
36
|
33
|
34
|
28
|
29
|
26
|
22
|
23
|
22
|
39
|
38
|
39
|
32
|
24
|
15
|
17
|
24
|
33
|
35
|
48
|
46
|
44
|
28
|
39
|
42
|
|
2025/09
|
28
|
37
|
39
|
29
|
22
|
28
|
18
|
18
|
20
|
21
|
24
|
25
|
22
|
23
|
21
|
27
|
23
|
23
|
14
|
17
|
20
|
23
|
25
|
24
|
26
|
27
|
26
|
25
|
32
|
33
|
|
|
2025/08
|
26
|
25
|
20
|
12
|
13
|
28
|
40
|
40
|
25
|
15
|
17
|
25
|
34
|
15
|
23
|
28
|
22
|
17
|
16
|
30
|
32
|
37
|
29
|
21
|
29
|
25
|
23
|
25
|
26
|
18
|
31
|
|
2025/07
|
17
|
21
|
22
|
29
|
15
|
19
|
40
|
40
|
32
|
16
|
12
|
34
|
38
|
36
|
33
|
39
|
37
|
29
|
24
|
24
|
22
|
15
|
25
|
35
|
26
|
28
|
38
|
32
|
27
|
34
|
27
|
|
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
|
|
|
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