Air Quality
Excellent
No health implications.
15
PM2.5
30
PM10
46
O3
0.2
CO
5
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Apr
136
Light
Tue
21 Apr
87
Good
Wed
22 Apr
56
Good
Thu
23 Apr
61
Good
Fri
24 Apr
57
Good
Sat
25 Apr
45
Excellent
Sun
26 Apr
21
Excellent
Air quality in the last 12 months (Hengshan)
|
2026/03
|
36
|
43
|
66
|
75
|
48
|
47
|
35
|
31
|
33
|
36
|
57
|
56
|
69
|
64
|
66
|
104
|
109
|
151
|
45
|
50
|
117
|
106
|
86
|
107
|
115
|
91
|
190
|
165
|
177
|
54
|
57
|
|
2026/02
|
36
|
36
|
45
|
64
|
42
|
34
|
23
|
22
|
50
|
93
|
54
|
33
|
77
|
62
|
52
|
35
|
58
|
20
|
37
|
66
|
97
|
74
|
98
|
61
|
62
|
56
|
41
|
40
|
|||
|
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
|
|
|
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