Air Quality
Excellent
No health implications.
27
PM2.5
46
PM10
109
O3
0.4
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
79
Good
Sat
24 May
78
Good
Sun
25 May
71
Good
Mon
26 May
78
Good
Tue
27 May
86
Good
Wed
28 May
78
Good
Thu
29 May
18
Excellent
Air quality in the last 12 months (Zhengning)
|
2025/04
|
60
|
62
|
82
|
116
|
81
|
84
|
74
|
103
|
108
|
63
|
170
|
265
|
107
|
60
|
49
|
154
|
88
|
93
|
85
|
64
|
97
|
144
|
75
|
54
|
66
|
55
|
44
|
30
|
55
|
144
|
|
|
2025/03
|
100
|
54
|
34
|
47
|
61
|
54
|
75
|
71
|
60
|
64
|
275
|
236
|
82
|
48
|
67
|
41
|
42
|
39
|
39
|
49
|
58
|
63
|
108
|
203
|
91
|
271
|
172
|
114
|
55
|
62
|
60
|
|
2025/02
|
136
|
69
|
32
|
38
|
37
|
60
|
76
|
41
|
55
|
63
|
67
|
70
|
59
|
59
|
50
|
76
|
72
|
67
|
72
|
88
|
98
|
80
|
34
|
48
|
70
|
61
|
66
|
74
|
|||
|
2025/01
|
58
|
59
|
62
|
79
|
69
|
42
|
39
|
39
|
47
|
54
|
82
|
81
|
110
|
49
|
36
|
56
|
66
|
67
|
71
|
71
|
78
|
110
|
194
|
186
|
49
|
79
|
62
|
75
|
116
|
112
|
122
|
|
2024/12
|
46
|
50
|
58
|
57
|
45
|
47
|
36
|
38
|
69
|
64
|
98
|
72
|
51
|
43
|
50
|
68
|
57
|
42
|
74
|
67
|
42
|
53
|
74
|
82
|
75
|
62
|
43
|
44
|
55
|
53
|
57
|
|
2024/11
|
52
|
42
|
50
|
42
|
55
|
75
|
95
|
97
|
92
|
95
|
102
|
90
|
52
|
33
|
53
|
55
|
38
|
28
|
44
|
44
|
59
|
59
|
95
|
69
|
40
|
48
|
62
|
56
|
37
|
39
|
|
|
2024/10
|
47
|
43
|
46
|
48
|
62
|
75
|
56
|
83
|
63
|
45
|
56
|
60
|
57
|
61
|
65
|
66
|
54
|
31
|
21
|
26
|
24
|
25
|
44
|
55
|
58
|
47
|
39
|
45
|
61
|
56
|
47
|
|
2024/09
|
48
|
36
|
33
|
35
|
27
|
38
|
30
|
33
|
40
|
45
|
44
|
33
|
29
|
28
|
44
|
36
|
37
|
34
|
29
|
29
|
21
|
36
|
53
|
64
|
59
|
63
|
69
|
62
|
31
|
38
|
|
|
2024/08
|
27
|
36
|
22
|
24
|
30
|
34
|
19
|
27
|
59
|
173
|
44
|
27
|
31
|
37
|
24
|
29
|
37
|
29
|
28
|
33
|
29
|
34
|
39
|
42
|
38
|
24
|
20
|
28
|
30
|
31
|
34
|
|
2024/07
|
26
|
32
|
27
|
22
|
47
|
38
|
26
|
24
|
29
|
39
|
29
|
32
|
44
|
45
|
36
|
14
|
18
|
22
|
24
|
18
|
77
|
24
|
18
|
60
|
71
|
51
|
47
|
43
|
28
|
25
|
37
|
|
2024/06
|
60
|
28
|
34
|
36
|
38
|
41
|
30
|
37
|
32
|
35
|
40
|
48
|
45
|
45
|
50
|
38
|
32
|
33
|
36
|
41
|
31
|
46
|
58
|
87
|
84
|
68
|
43
|
53
|
47
|
28
|
|
|
2024/05
|
37
|
37
|
38
|
34
|
36
|
44
|
50
|
49
|
37
|
57
|
91
|
55
|
52
|
53
|
72
|
54
|
61
|
55
|
51
|
45
|
50
|
49
|
41
|
39
|
44
|
39
|
37
|
51
|
36
|
59
|
62
|
|
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