Air Quality
Excellent
No health implications.
16
PM2.5
25
PM10
82
O3
0.4
CO
6
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Sep
54
Good
Sun
20 Sep
59
Good
Mon
21 Sep
53
Good
Tue
22 Sep
74
Good
Wed
23 Sep
58
Good
Thu
24 Sep
58
Good
Fri
25 Sep
24
Excellent
Air quality in the last 12 months (Changhai)
|
2026/08
|
38
|
38
|
32
|
21
|
23
|
41
|
42
|
32
|
40
|
27
|
24
|
22
|
22
|
33
|
28
|
19
|
29
|
35
|
37
|
27
|
20
|
18
|
17
|
18
|
20
|
23
|
29
|
39
|
26
|
34
|
27
|
|
2026/07
|
27
|
32
|
49
|
43
|
26
|
31
|
30
|
29
|
33
|
27
|
19
|
29
|
28
|
14
|
43
|
41
|
38
|
47
|
34
|
27
|
27
|
26
|
21
|
24
|
27
|
26
|
24
|
37
|
28
|
34
|
35
|
|
2026/06
|
43
|
29
|
26
|
30
|
25
|
24
|
29
|
30
|
36
|
35
|
35
|
50
|
37
|
44
|
35
|
33
|
37
|
38
|
22
|
26
|
26
|
27
|
28
|
29
|
32
|
39
|
38
|
31
|
25
|
28
|
|
|
2026/05
|
70
|
42
|
31
|
31
|
36
|
43
|
35
|
31
|
37
|
39
|
37
|
32
|
36
|
37
|
33
|
30
|
30
|
26
|
25
|
38
|
47
|
27
|
24
|
23
|
25
|
32
|
24
|
44
|
40
|
62
|
59
|
|
2026/04
|
71
|
65
|
69
|
40
|
44
|
27
|
29
|
36
|
33
|
47
|
65
|
64
|
69
|
89
|
95
|
62
|
56
|
45
|
44
|
107
|
73
|
59
|
47
|
53
|
55
|
52
|
40
|
32
|
43
|
50
|
|
|
2026/03
|
162
|
155
|
161
|
120
|
70
|
32
|
39
|
63
|
40
|
39
|
51
|
79
|
63
|
91
|
167
|
111
|
94
|
48
|
48
|
55
|
73
|
85
|
131
|
114
|
118
|
97
|
60
|
47
|
87
|
45
|
52
|
|
2026/02
|
68
|
36
|
59
|
130
|
104
|
45
|
41
|
38
|
65
|
83
|
63
|
107
|
112
|
93
|
62
|
54
|
201
|
38
|
54
|
75
|
65
|
94
|
36
|
57
|
57
|
80
|
112
|
104
|
|||
|
2026/01
|
33
|
40
|
65
|
56
|
40
|
67
|
38
|
43
|
69
|
59
|
28
|
48
|
28
|
31
|
108
|
77
|
31
|
39
|
34
|
43
|
41
|
45
|
59
|
45
|
41
|
54
|
41
|
43
|
43
|
42
|
72
|
|
2025/12
|
31
|
27
|
30
|
41
|
39
|
88
|
74
|
31
|
54
|
106
|
54
|
42
|
60
|
49
|
56
|
88
|
59
|
54
|
59
|
50
|
31
|
26
|
37
|
40
|
31
|
36
|
47
|
88
|
58
|
32
|
24
|
|
2025/11
|
47
|
35
|
26
|
58
|
49
|
79
|
88
|
72
|
48
|
27
|
54
|
83
|
36
|
43
|
92
|
82
|
39
|
39
|
41
|
38
|
45
|
65
|
122
|
151
|
34
|
48
|
38
|
33
|
99
|
81
|
|
|
2025/10
|
63
|
38
|
37
|
32
|
50
|
32
|
16
|
34
|
36
|
39
|
49
|
53
|
55
|
27
|
54
|
64
|
66
|
26
|
28
|
20
|
28
|
40
|
48
|
62
|
87
|
63
|
32
|
42
|
46
|
43
|
53
|
|
2025/09
|
31
|
46
|
41
|
34
|
29
|
23
|
34
|
29
|
49
|
32
|
32
|
36
|
30
|
37
|
33
|
18
|
18
|
24
|
37
|
27
|
37
|
35
|
23
|
30
|
51
|
33
|
35
|
32
|
44
|
45
|
|
|
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