Air Quality
Excellent
No health implications.
20
PM2.5
36
PM10
91
O3
0.2
CO
8
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Mar
46
Excellent
Thu
19 Mar
45
Excellent
Fri
20 Mar
46
Excellent
Sat
21 Mar
48
Excellent
Sun
22 Mar
46
Excellent
Mon
23 Mar
36
Excellent
Tue
24 Mar
29
Excellent
Air quality in the last 12 months (Henan)
|
2026/02
|
56
|
49
|
51
|
56
|
51
|
58
|
45
|
35
|
59
|
53
|
36
|
32
|
23
|
29
|
53
|
47
|
75
|
47
|
39
|
19
|
32
|
26
|
63
|
37
|
35
|
43
|
41
|
53
|
|||
|
2026/01
|
47
|
45
|
51
|
46
|
47
|
39
|
26
|
28
|
33
|
26
|
29
|
29
|
26
|
34
|
40
|
31
|
39
|
65
|
71
|
57
|
51
|
49
|
33
|
27
|
68
|
80
|
53
|
61
|
74
|
56
|
50
|
|
2025/12
|
34
|
47
|
44
|
43
|
37
|
37
|
40
|
46
|
41
|
34
|
38
|
139
|
56
|
37
|
36
|
38
|
34
|
33
|
47
|
49
|
47
|
57
|
66
|
52
|
43
|
36
|
30
|
31
|
32
|
31
|
45
|
|
2025/11
|
37
|
38
|
34
|
27
|
32
|
27
|
62
|
82
|
60
|
39
|
34
|
36
|
23
|
35
|
34
|
38
|
58
|
40
|
30
|
34
|
31
|
35
|
34
|
77
|
53
|
53
|
33
|
39
|
39
|
36
|
|
|
2025/10
|
16
|
25
|
24
|
30
|
17
|
18
|
16
|
21
|
21
|
19
|
18
|
22
|
26
|
26
|
31
|
29
|
31
|
32
|
31
|
33
|
32
|
24
|
21
|
23
|
28
|
32
|
30
|
32
|
32
|
33
|
47
|
|
2025/09
|
28
|
22
|
28
|
22
|
29
|
46
|
51
|
44
|
38
|
32
|
29
|
31
|
38
|
40
|
20
|
53
|
28
|
19
|
24
|
29
|
23
|
19
|
33
|
36
|
34
|
22
|
24
|
21
|
19
|
23
|
|
|
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
|
|
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