Air Quality
Excellent
No health implications.
28
PM2.5
48
PM10
108
O3
0.4
CO
11
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Apr
90
Good
Fri
18 Apr
58
Good
Sat
19 Apr
63
Good
Sun
20 Apr
85
Good
Mon
21 Apr
59
Good
Tue
22 Apr
66
Good
Wed
23 Apr
44
Excellent
Air quality in the last 12 months (Hengshan)
|
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
|
|
|
2024/10
|
11
|
19
|
41
|
43
|
43
|
41
|
27
|
44
|
49
|
39
|
29
|
33
|
42
|
48
|
19
|
31
|
44
|
47
|
29
|
35
|
40
|
32
|
30
|
37
|
51
|
43
|
25
|
42
|
52
|
49
|
60
|
|
2024/09
|
25
|
13
|
23
|
41
|
10
|
19
|
22
|
30
|
37
|
16
|
22
|
28
|
24
|
21
|
22
|
38
|
21
|
24
|
32
|
16
|
23
|
29
|
39
|
37
|
30
|
18
|
35
|
38
|
41
|
26
|
|
|
2024/08
|
16
|
16
|
17
|
18
|
16
|
16
|
29
|
30
|
30
|
35
|
13
|
15
|
22
|
23
|
28
|
28
|
27
|
32
|
12
|
23
|
22
|
22
|
18
|
32
|
32
|
25
|
21
|
28
|
34
|
27
|
16
|
|
2024/07
|
65
|
67
|
51
|
24
|
34
|
50
|
47
|
60
|
56
|
45
|
63
|
43
|
32
|
43
|
54
|
50
|
30
|
17
|
23
|
37
|
33
|
27
|
31
|
22
|
25
|
13
|
14
|
13
|
16
|
19
|
26
|
|
2024/06
|
11
|
24
|
31
|
24
|
29
|
31
|
35
|
30
|
18
|
21
|
40
|
22
|
23
|
16
|
18
|
15
|
22
|
22
|
38
|
35
|
11
|
8
|
6
|
7
|
16
|
23
|
26
|
51
|
50
|
48
|
|
|
2024/05
|
44
|
60
|
53
|
58
|
69
|
64
|
34
|
42
|
33
|
39
|
28
|
20
|
30
|
34
|
27
|
25
|
36
|
51
|
25
|
24
|
26
|
44
|
30
|
19
|
23
|
23
|
12
|
21
|
17
|
17
|
12
|
|
2024/04
|
33
|
30
|
61
|
24
|
37
|
64
|
34
|
20
|
41
|
51
|
73
|
64
|
55
|
65
|
209
|
46
|
43
|
70
|
48
|
92
|
115
|
66
|
51
|
34
|
63
|
53
|
55
|
63
|
63
|
38
|
|
|
2024/03
|
41
|
31
|
37
|
33
|
34
|
34
|
39
|
40
|
18
|
45
|
69
|
46
|
55
|
55
|
39
|
19
|
20
|
28
|
39
|
31
|
35
|
42
|
20
|
20
|
29
|
48
|
47
|
62
|
81
|
45
|
46
|
|
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