Air Quality
Excellent
No health implications.
23
PM2.5
31
PM10
61
O3
0.4
CO
9
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Feb
92
Good
Fri
13 Feb
89
Good
Sat
14 Feb
67
Good
Sun
15 Feb
64
Good
Mon
16 Feb
61
Good
Tue
17 Feb
63
Good
Wed
18 Feb
44
Excellent
Hengshan Air quality rank
Air quality in the last 12 months (Hengshan)
|
2026/01
|
20
|
25
|
31
|
32
|
26
|
32
|
43
|
18
|
65
|
62
|
31
|
54
|
54
|
29
|
58
|
28
|
32
|
43
|
44
|
27
|
29
|
24
|
34
|
23
|
22
|
24
|
32
|
44
|
18
|
24
|
28
|
|
2025/12
|
26
|
34
|
20
|
21
|
30
|
44
|
32
|
39
|
33
|
32
|
30
|
28
|
45
|
65
|
58
|
39
|
21
|
59
|
78
|
40
|
26
|
49
|
60
|
41
|
40
|
20
|
31
|
63
|
48
|
25
|
24
|
|
2025/11
|
91
|
90
|
38
|
62
|
129
|
91
|
20
|
48
|
32
|
24
|
34
|
53
|
55
|
46
|
69
|
66
|
38
|
38
|
62
|
36
|
105
|
90
|
56
|
129
|
35
|
59
|
66
|
51
|
63
|
51
|
|
|
2025/10
|
25
|
38
|
47
|
40
|
19
|
32
|
43
|
33
|
31
|
37
|
41
|
34
|
47
|
61
|
53
|
69
|
55
|
23
|
17
|
21
|
28
|
40
|
51
|
51
|
103
|
90
|
65
|
42
|
155
|
43
|
64
|
|
2025/09
|
33
|
25
|
37
|
38
|
38
|
27
|
20
|
25
|
23
|
23
|
21
|
38
|
45
|
35
|
17
|
18
|
14
|
19
|
25
|
30
|
26
|
27
|
38
|
34
|
20
|
12
|
22
|
33
|
32
|
46
|
|
|
2025/08
|
25
|
20
|
24
|
13
|
18
|
18
|
16
|
17
|
20
|
15
|
24
|
40
|
34
|
15
|
26
|
21
|
16
|
22
|
21
|
18
|
24
|
12
|
19
|
23
|
19
|
12
|
19
|
28
|
15
|
26
|
34
|
|
2025/07
|
28
|
19
|
19
|
24
|
34
|
13
|
21
|
28
|
31
|
29
|
31
|
26
|
21
|
16
|
18
|
15
|
19
|
18
|
18
|
21
|
17
|
19
|
23
|
22
|
22
|
13
|
20
|
19
|
20
|
15
|
16
|
|
2025/06
|
45
|
25
|
17
|
14
|
19
|
20
|
17
|
26
|
26
|
17
|
16
|
18
|
29
|
27
|
18
|
19
|
19
|
23
|
26
|
21
|
14
|
14
|
23
|
35
|
42
|
44
|
36
|
48
|
27
|
26
|
|
|
2025/05
|
32
|
29
|
23
|
21
|
17
|
29
|
33
|
34
|
34
|
17
|
37
|
43
|
46
|
37
|
19
|
38
|
30
|
15
|
19
|
26
|
26
|
16
|
17
|
25
|
19
|
21
|
27
|
36
|
40
|
43
|
50
|
|
2025/04
|
83
|
68
|
50
|
53
|
54
|
18
|
26
|
57
|
58
|
61
|
145
|
88
|
43
|
28
|
22
|
26
|
50
|
45
|
33
|
56
|
89
|
25
|
36
|
32
|
37
|
15
|
31
|
51
|
39
|
38
|
|
|
2025/03
|
25
|
17
|
26
|
42
|
52
|
38
|
33
|
64
|
70
|
70
|
78
|
84
|
21
|
23
|
19
|
24
|
32
|
32
|
40
|
65
|
86
|
11
|
46
|
56
|
91
|
76
|
26
|
15
|
25
|
21
|
43
|
|
2025/02
|
50
|
88
|
71
|
33
|
20
|
18
|
33
|
26
|
23
|
32
|
46
|
65
|
27
|
25
|
41
|
42
|
26
|
19
|
18
|
23
|
22
|
21
|
17
|
25
|
52
|
28
|
48
|
67
|
|||
|
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