Air Quality
Excellent
No health implications.
24
PM2.5
35
PM10
71
O3
0.6
CO
5
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 May
45
Excellent
Sat
16 May
36
Excellent
Sun
17 May
37
Excellent
Mon
18 May
37
Excellent
Tue
19 May
37
Excellent
Wed
20 May
45
Excellent
Thu
21 May
33
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