Air Quality
Excellent
No health implications.
21
PM2.5
33
PM10
61
O3
0.6
CO
6
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 May
53
Good
Tue
6 May
54
Good
Wed
7 May
58
Good
Thu
8 May
49
Excellent
Fri
9 May
51
Good
Sat
10 May
59
Good
Sun
11 May
42
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