Air Quality
Excellent
No health implications.
12
PM2.5
29
PM10
115
O3
0.2
CO
3
SO2
2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Jun
115
Light
Wed
11 Jun
145
Light
Thu
12 Jun
156
Moderate
Fri
13 Jun
137
Light
Sat
14 Jun
144
Light
Sun
15 Jun
109
Light
Mon
16 Jun
30
Excellent
Air quality in the last 12 months (Zhengding)
|
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
|
|
2024/11
|
69
|
70
|
87
|
30
|
48
|
77
|
127
|
196
|
227
|
226
|
152
|
173
|
154
|
75
|
60
|
72
|
57
|
52
|
63
|
56
|
53
|
54
|
84
|
122
|
72
|
29
|
33
|
35
|
44
|
58
|
|
|
2024/10
|
43
|
37
|
46
|
59
|
84
|
140
|
105
|
101
|
106
|
91
|
71
|
141
|
193
|
188
|
119
|
67
|
90
|
64
|
33
|
39
|
68
|
57
|
53
|
87
|
143
|
197
|
112
|
71
|
130
|
127
|
106
|
|
2024/09
|
55
|
29
|
32
|
57
|
31
|
36
|
44
|
53
|
75
|
35
|
33
|
40
|
44
|
51
|
54
|
62
|
71
|
61
|
46
|
40
|
22
|
32
|
47
|
66
|
87
|
123
|
128
|
114
|
120
|
19
|
|
|
2024/08
|
46
|
44
|
40
|
31
|
24
|
39
|
27
|
37
|
43
|
66
|
20
|
22
|
24
|
32
|
53
|
46
|
38
|
32
|
33
|
29
|
24
|
38
|
46
|
37
|
37
|
12
|
18
|
29
|
38
|
62
|
71
|
|
2024/07
|
48
|
51
|
66
|
78
|
83
|
53
|
64
|
50
|
60
|
71
|
69
|
71
|
46
|
94
|
96
|
47
|
48
|
39
|
54
|
39
|
46
|
39
|
59
|
53
|
22
|
40
|
41
|
39
|
36
|
22
|
35
|
|
2024/06
|
47
|
56
|
43
|
68
|
43
|
66
|
75
|
70
|
60
|
55
|
61
|
68
|
95
|
61
|
49
|
56
|
60
|
56
|
58
|
59
|
52
|
75
|
114
|
53
|
52
|
69
|
55
|
60
|
55
|
49
|
|
|
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