Air Quality
Excellent
No health implications.
12
PM2.5
23
PM10
61
O3
0.6
CO
5
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
44
Excellent
Sun
24 May
50
Excellent
Mon
25 May
53
Good
Tue
26 May
56
Good
Wed
27 May
57
Good
Thu
28 May
54
Good
Fri
29 May
23
Excellent
Air quality in the last 12 months (HengZhou City)
|
2026/04
|
29
|
50
|
49
|
35
|
67
|
68
|
72
|
56
|
49
|
54
|
58
|
59
|
52
|
53
|
44
|
48
|
32
|
44
|
53
|
39
|
41
|
37
|
20
|
31
|
43
|
51
|
32
|
28
|
23
|
30
|
|
|
2026/03
|
29
|
32
|
18
|
24
|
41
|
43
|
55
|
70
|
51
|
19
|
36
|
49
|
65
|
54
|
54
|
50
|
41
|
39
|
49
|
45
|
39
|
66
|
59
|
47
|
58
|
42
|
44
|
63
|
51
|
36
|
39
|
|
2026/02
|
35
|
53
|
70
|
75
|
56
|
54
|
50
|
32
|
47
|
59
|
25
|
41
|
54
|
66
|
48
|
55
|
65
|
49
|
59
|
40
|
72
|
58
|
55
|
44
|
68
|
49
|
39
|
36
|
|||
|
2026/01
|
58
|
22
|
42
|
77
|
33
|
32
|
46
|
66
|
79
|
91
|
85
|
72
|
108
|
107
|
93
|
78
|
106
|
102
|
69
|
60
|
34
|
24
|
50
|
66
|
82
|
72
|
38
|
50
|
62
|
50
|
28
|
|
2025/12
|
76
|
63
|
70
|
85
|
80
|
83
|
100
|
69
|
85
|
91
|
97
|
108
|
35
|
48
|
58
|
60
|
58
|
60
|
68
|
58
|
68
|
70
|
61
|
23
|
25
|
48
|
57
|
77
|
88
|
76
|
74
|
|
2025/11
|
31
|
30
|
17
|
9
|
13
|
35
|
34
|
34
|
23
|
18
|
15
|
23
|
36
|
41
|
52
|
62
|
72
|
29
|
21
|
27
|
33
|
50
|
60
|
57
|
40
|
59
|
53
|
69
|
80
|
87
|
|
|
2025/10
|
37
|
26
|
21
|
30
|
27
|
11
|
20
|
35
|
39
|
41
|
44
|
40
|
27
|
23
|
20
|
30
|
46
|
47
|
28
|
18
|
16
|
15
|
21
|
34
|
44
|
46
|
44
|
42
|
55
|
49
|
39
|
|
2025/09
|
20
|
19
|
22
|
25
|
22
|
22
|
40
|
27
|
15
|
16
|
21
|
21
|
21
|
26
|
25
|
26
|
21
|
25
|
40
|
42
|
21
|
16
|
20
|
15
|
10
|
19
|
25
|
26
|
26
|
27
|
|
|
2025/08
|
27
|
20
|
33
|
31
|
23
|
17
|
19
|
28
|
31
|
26
|
25
|
30
|
30
|
32
|
17
|
22
|
25
|
16
|
14
|
25
|
27
|
24
|
31
|
29
|
22
|
21
|
29
|
22
|
24
|
25
|
21
|
|
2025/07
|
19
|
22
|
23
|
21
|
35
|
34
|
25
|
25
|
27
|
34
|
28
|
22
|
24
|
27
|
24
|
26
|
29
|
33
|
43
|
25
|
12
|
11
|
13
|
19
|
27
|
30
|
41
|
37
|
29
|
40
|
29
|
|
2025/06
|
19
|
28
|
16
|
35
|
35
|
21
|
22
|
24
|
28
|
27
|
22
|
20
|
13
|
17
|
22
|
18
|
23
|
23
|
19
|
23
|
24
|
25
|
26
|
22
|
15
|
27
|
14
|
20
|
21
|
16
|
|
|
2025/05
|
29
|
45
|
30
|
33
|
31
|
29
|
37
|
26
|
19
|
28
|
32
|
45
|
40
|
25
|
18
|
23
|
21
|
24
|
24
|
24
|
22
|
23
|
22
|
12
|
35
|
38
|
49
|
48
|
17
|
21
|
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