Air Quality
Excellent
No health implications.
12
PM2.5
29
PM10
90
O3
0.4
CO
9
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Oct
41
Excellent
Thu
23 Oct
42
Excellent
Fri
24 Oct
42
Excellent
Sat
25 Oct
42
Excellent
Sun
26 Oct
45
Excellent
Mon
27 Oct
39
Excellent
Tue
28 Oct
17
Excellent
Air quality in the last 12 months (Henan)
|
2025/08
|
32
|
31
|
28
|
16
|
22
|
25
|
22
|
19
|
18
|
23
|
31
|
37
|
32
|
32
|
28
|
33
|
32
|
28
|
17
|
15
|
12
|
17
|
21
|
30
|
26
|
22
|
15
|
13
|
21
|
31
|
35
|
|
2025/07
|
32
|
23
|
22
|
19
|
23
|
22
|
30
|
36
|
37
|
32
|
31
|
28
|
30
|
34
|
35
|
38
|
36
|
27
|
42
|
20
|
20
|
28
|
27
|
22
|
23
|
24
|
36
|
31
|
31
|
24
|
32
|
|
2025/06
|
16
|
19
|
20
|
22
|
29
|
30
|
29
|
31
|
17
|
31
|
27
|
28
|
33
|
32
|
37
|
37
|
44
|
32
|
26
|
31
|
27
|
21
|
23
|
18
|
23
|
32
|
32
|
31
|
30
|
33
|
|
|
2025/05
|
35
|
42
|
112
|
61
|
35
|
41
|
73
|
84
|
59
|
33
|
28
|
42
|
50
|
83
|
16
|
33
|
17
|
41
|
36
|
28
|
33
|
69
|
63
|
49
|
36
|
38
|
30
|
32
|
31
|
52
|
45
|
|
2025/04
|
84
|
77
|
61
|
78
|
76
|
56
|
52
|
86
|
63
|
59
|
60
|
24
|
35
|
44
|
54
|
51
|
53
|
85
|
61
|
60
|
89
|
60
|
51
|
39
|
31
|
26
|
58
|
46
|
43
|
44
|
|
|
2025/03
|
46
|
49
|
47
|
39
|
45
|
66
|
80
|
54
|
34
|
40
|
61
|
95
|
49
|
34
|
46
|
39
|
40
|
47
|
56
|
53
|
46
|
52
|
51
|
28
|
19
|
116
|
169
|
62
|
72
|
83
|
94
|
|
2025/02
|
36
|
44
|
38
|
40
|
51
|
52
|
48
|
48
|
43
|
46
|
53
|
58
|
47
|
49
|
42
|
39
|
31
|
34
|
46
|
49
|
48
|
45
|
50
|
45
|
35
|
32
|
42
|
42
|
|||
|
2025/01
|
33
|
44
|
37
|
51
|
35
|
40
|
54
|
55
|
50
|
57
|
35
|
23
|
24
|
35
|
45
|
40
|
45
|
52
|
38
|
38
|
40
|
49
|
50
|
53
|
77
|
53
|
17
|
21
|
40
|
28
|
30
|
|
2024/12
|
31
|
33
|
31
|
42
|
42
|
38
|
48
|
49
|
44
|
49
|
49
|
47
|
40
|
37
|
28
|
25
|
26
|
44
|
45
|
41
|
55
|
44
|
43
|
62
|
61
|
47
|
58
|
39
|
47
|
35
|
30
|
|
2024/11
|
27
|
30
|
28
|
33
|
32
|
27
|
29
|
30
|
36
|
39
|
47
|
42
|
44
|
35
|
38
|
45
|
38
|
38
|
36
|
30
|
31
|
26
|
28
|
39
|
57
|
31
|
22
|
24
|
37
|
33
|
|
|
2024/10
|
26
|
27
|
31
|
36
|
34
|
30
|
28
|
30
|
29
|
20
|
25
|
23
|
26
|
26
|
30
|
21
|
22
|
23
|
25
|
31
|
52
|
42
|
33
|
30
|
37
|
33
|
28
|
31
|
36
|
39
|
25
|
|
2024/09
|
29
|
19
|
22
|
16
|
16
|
16
|
19
|
24
|
12
|
15
|
15
|
19
|
13
|
14
|
15
|
13
|
15
|
16
|
18
|
13
|
13
|
22
|
30
|
26
|
34
|
31
|
33
|
33
|
27
|
25
|
|
|
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