Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
31
PM2.5
167
*
PM10
101
O3
0.4
CO
4
SO2
6
NO2
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
Advise
Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
Air Quality
Today
20 Feb
70
Good
Sat
21 Feb
156
Moderate
Sun
22 Feb
91
Good
Mon
23 Feb
91
Good
Tue
24 Feb
99
Good
Wed
25 Feb
133
Light
Thu
26 Feb
45
Excellent
Air quality in the last 12 months (Zhengding)
|
2026/01
|
71
|
106
|
168
|
205
|
136
|
62
|
54
|
69
|
133
|
59
|
49
|
72
|
83
|
92
|
154
|
120
|
66
|
57
|
51
|
56
|
62
|
91
|
160
|
212
|
161
|
169
|
235
|
180
|
106
|
119
|
194
|
|
2025/12
|
83
|
45
|
54
|
61
|
81
|
97
|
88
|
53
|
77
|
114
|
116
|
36
|
49
|
69
|
122
|
109
|
113
|
157
|
222
|
136
|
67
|
82
|
83
|
72
|
43
|
74
|
101
|
156
|
136
|
80
|
42
|
|
2025/11
|
52
|
42
|
66
|
105
|
166
|
219
|
75
|
69
|
63
|
74
|
98
|
119
|
61
|
64
|
72
|
64
|
37
|
42
|
47
|
56
|
53
|
58
|
82
|
112
|
45
|
131
|
55
|
92
|
125
|
147
|
|
|
2025/10
|
64
|
34
|
56
|
60
|
41
|
24
|
32
|
27
|
15
|
16
|
26
|
49
|
38
|
38
|
72
|
106
|
45
|
30
|
50
|
36
|
50
|
60
|
88
|
108
|
151
|
72
|
65
|
93
|
182
|
204
|
161
|
|
2025/09
|
49
|
53
|
41
|
40
|
40
|
47
|
57
|
57
|
41
|
49
|
50
|
42
|
48
|
59
|
69
|
45
|
29
|
39
|
27
|
44
|
60
|
23
|
33
|
45
|
54
|
57
|
40
|
51
|
59
|
61
|
|
|
2025/08
|
48
|
56
|
57
|
32
|
32
|
44
|
45
|
32
|
26
|
36
|
47
|
52
|
33
|
50
|
62
|
24
|
33
|
50
|
52
|
21
|
34
|
35
|
26
|
17
|
38
|
45
|
51
|
27
|
41
|
37
|
43
|
|
2025/07
|
38
|
36
|
21
|
41
|
28
|
32
|
36
|
45
|
45
|
47
|
55
|
59
|
42
|
52
|
63
|
61
|
47
|
43
|
48
|
34
|
34
|
44
|
32
|
35
|
39
|
47
|
40
|
46
|
19
|
31
|
43
|
|
2025/06
|
92
|
81
|
43
|
39
|
62
|
69
|
69
|
62
|
71
|
49
|
76
|
78
|
78
|
49
|
32
|
29
|
41
|
66
|
51
|
60
|
51
|
47
|
52
|
51
|
56
|
48
|
51
|
42
|
42
|
55
|
|
|
2025/05
|
53
|
72
|
47
|
63
|
85
|
53
|
72
|
91
|
34
|
38
|
50
|
62
|
77
|
53
|
51
|
65
|
124
|
66
|
84
|
92
|
81
|
69
|
68
|
44
|
54
|
61
|
67
|
62
|
67
|
69
|
69
|
|
2025/04
|
69
|
40
|
67
|
105
|
51
|
81
|
111
|
73
|
78
|
70
|
145
|
125
|
49
|
41
|
56
|
109
|
131
|
73
|
54
|
91
|
81
|
59
|
75
|
54
|
72
|
95
|
96
|
58
|
62
|
71
|
|
|
2025/03
|
208
|
98
|
57
|
46
|
67
|
52
|
78
|
116
|
101
|
123
|
157
|
152
|
131
|
86
|
51
|
31
|
51
|
54
|
49
|
43
|
48
|
60
|
130
|
115
|
106
|
79
|
127
|
133
|
47
|
62
|
64
|
|
2025/02
|
103
|
167
|
53
|
37
|
32
|
109
|
34
|
26
|
53
|
88
|
117
|
84
|
53
|
78
|
64
|
42
|
50
|
58
|
60
|
76
|
81
|
67
|
39
|
60
|
72
|
74
|
104
|
150
|
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27
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28
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29
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30
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31
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- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution