Air Quality
Excellent
No health implications.
13
PM2.5
19
PM10
46
O3
0.6
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Nov
83
Good
Mon
17 Nov
55
Good
Tue
18 Nov
54
Good
Wed
19 Nov
57
Good
Thu
20 Nov
57
Good
Fri
21 Nov
55
Good
Sat
22 Nov
50
Excellent
Air quality in the last 12 months (Hengshan)
|
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
|
|||
|
2025/01
|
57
|
41
|
30
|
35
|
76
|
70
|
65
|
56
|
34
|
34
|
54
|
80
|
69
|
52
|
37
|
50
|
47
|
97
|
103
|
102
|
137
|
141
|
103
|
75
|
72
|
78
|
66
|
63
|
57
|
42
|
34
|
|
2024/12
|
29
|
22
|
25
|
18
|
15
|
23
|
17
|
23
|
36
|
45
|
24
|
28
|
25
|
31
|
23
|
25
|
27
|
22
|
25
|
51
|
46
|
42
|
36
|
28
|
53
|
29
|
21
|
28
|
41
|
75
|
76
|
|
2024/11
|
54
|
43
|
49
|
37
|
38
|
20
|
45
|
76
|
96
|
68
|
60
|
119
|
162
|
107
|
80
|
76
|
17
|
19
|
46
|
52
|
68
|
33
|
30
|
50
|
61
|
24
|
30
|
44
|
29
|
21
|
|
|
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