Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
33
PM2.5
65
*
PM10
118
O3
0.4
CO
8
SO2
16
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
1 Jun
94
Good
Mon
2 Jun
91
Good
Tue
3 Jun
75
Good
Wed
4 Jun
89
Good
Thu
5 Jun
127
Light
Fri
6 Jun
90
Good
Sat
7 Jun
38
Excellent
Air quality in the last 12 months (Changli)
|
2025/04
|
72
|
29
|
53
|
67
|
36
|
60
|
75
|
55
|
47
|
71
|
72
|
101
|
46
|
30
|
59
|
71
|
77
|
43
|
41
|
60
|
60
|
48
|
71
|
50
|
54
|
78
|
57
|
54
|
68
|
90
|
|
|
2025/03
|
124
|
64
|
33
|
54
|
74
|
48
|
49
|
87
|
154
|
107
|
123
|
73
|
66
|
54
|
36
|
31
|
43
|
31
|
56
|
48
|
45
|
58
|
93
|
104
|
78
|
98
|
84
|
38
|
40
|
50
|
74
|
|
2025/02
|
59
|
85
|
32
|
23
|
26
|
51
|
24
|
25
|
40
|
73
|
101
|
53
|
76
|
87
|
111
|
49
|
29
|
43
|
47
|
42
|
39
|
40
|
32
|
59
|
68
|
72
|
131
|
191
|
|||
|
2025/01
|
56
|
33
|
41
|
86
|
93
|
38
|
23
|
20
|
21
|
35
|
49
|
51
|
61
|
39
|
32
|
51
|
67
|
89
|
66
|
68
|
63
|
51
|
61
|
84
|
100
|
102
|
26
|
50
|
80
|
40
|
37
|
|
2024/12
|
82
|
31
|
48
|
28
|
41
|
30
|
30
|
31
|
55
|
51
|
33
|
72
|
50
|
29
|
44
|
47
|
30
|
35
|
55
|
59
|
35
|
41
|
44
|
65
|
101
|
31
|
27
|
37
|
72
|
82
|
44
|
|
2024/11
|
93
|
49
|
78
|
30
|
47
|
41
|
65
|
76
|
85
|
91
|
44
|
55
|
49
|
42
|
46
|
51
|
28
|
29
|
47
|
74
|
45
|
36
|
36
|
70
|
58
|
18
|
21
|
29
|
36
|
48
|
|
|
2024/10
|
18
|
19
|
37
|
56
|
70
|
60
|
27
|
39
|
57
|
44
|
60
|
65
|
62
|
70
|
68
|
30
|
53
|
37
|
23
|
23
|
42
|
37
|
47
|
111
|
106
|
82
|
59
|
63
|
86
|
53
|
88
|
|
2024/09
|
24
|
20
|
31
|
41
|
24
|
26
|
37
|
48
|
51
|
19
|
25
|
27
|
38
|
28
|
26
|
50
|
50
|
30
|
34
|
24
|
18
|
24
|
37
|
54
|
53
|
32
|
41
|
45
|
39
|
19
|
|
|
2024/08
|
38
|
42
|
52
|
28
|
30
|
44
|
40
|
49
|
39
|
35
|
63
|
47
|
24
|
24
|
32
|
47
|
51
|
34
|
19
|
14
|
26
|
37
|
25
|
26
|
41
|
21
|
28
|
33
|
47
|
56
|
37
|
|
2024/07
|
45
|
51
|
40
|
52
|
67
|
39
|
38
|
42
|
58
|
60
|
69
|
63
|
57
|
58
|
43
|
33
|
37
|
50
|
55
|
47
|
47
|
36
|
49
|
52
|
26
|
22
|
22
|
30
|
42
|
36
|
44
|
|
2024/06
|
53
|
53
|
54
|
51
|
49
|
55
|
50
|
47
|
61
|
59
|
67
|
55
|
47
|
36
|
24
|
47
|
61
|
62
|
50
|
35
|
35
|
64
|
113
|
37
|
43
|
59
|
59
|
46
|
33
|
44
|
|
|
2024/05
|
58
|
66
|
73
|
55
|
51
|
71
|
67
|
76
|
83
|
85
|
245
|
43
|
63
|
73
|
43
|
56
|
66
|
59
|
40
|
28
|
53
|
62
|
54
|
27
|
29
|
35
|
39
|
53
|
57
|
58
|
36
|
|
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