Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
23
PM2.5
59
*
PM10
30
O3
0.5
CO
2
SO2
30
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
14 Dec
78
Good
Mon
15 Dec
116
Light
Tue
16 Dec
141
Light
Wed
17 Dec
132
Light
Thu
18 Dec
150
Light
Fri
19 Dec
176
Moderate
Sat
20 Dec
27
Excellent
Air quality in the last 12 months (Zhengding)
|
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
|
|||
|
2025/01
|
78
|
69
|
67
|
74
|
75
|
32
|
40
|
50
|
42
|
45
|
63
|
61
|
73
|
70
|
46
|
58
|
85
|
112
|
78
|
97
|
95
|
80
|
90
|
101
|
145
|
86
|
31
|
59
|
247
|
104
|
95
|
|
2024/12
|
56
|
42
|
64
|
87
|
50
|
49
|
29
|
35
|
63
|
81
|
76
|
83
|
71
|
51
|
46
|
53
|
51
|
44
|
58
|
62
|
31
|
47
|
54
|
83
|
102
|
67
|
55
|
46
|
61
|
77
|
80
|
|
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