Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
34
PM2.5
63
*
PM10
44
O3
0.6
CO
6
SO2
12
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
12 Mar
86
Good
Thu
13 Mar
59
Good
Fri
14 Mar
56
Good
Sat
15 Mar
52
Good
Sun
16 Mar
59
Good
Mon
17 Mar
63
Good
Tue
18 Mar
48
Excellent
Air quality in the last 12 months (Chengkou)
|
2025/01
|
110
|
113
|
129
|
153
|
84
|
78
|
84
|
63
|
58
|
65
|
70
|
63
|
67
|
85
|
59
|
60
|
77
|
87
|
89
|
93
|
104
|
147
|
191
|
76
|
17
|
43
|
61
|
65
|
128
|
96
|
90
|
|
2024/12
|
66
|
76
|
89
|
62
|
42
|
41
|
46
|
53
|
63
|
62
|
51
|
57
|
50
|
51
|
65
|
79
|
90
|
88
|
77
|
108
|
125
|
97
|
64
|
89
|
111
|
127
|
112
|
69
|
89
|
116
|
114
|
|
2024/11
|
47
|
38
|
40
|
40
|
31
|
39
|
50
|
63
|
49
|
40
|
52
|
50
|
38
|
30
|
36
|
27
|
10
|
12
|
17
|
21
|
27
|
33
|
43
|
42
|
20
|
41
|
46
|
48
|
54
|
58
|
|
|
2024/10
|
24
|
31
|
41
|
45
|
48
|
42
|
36
|
36
|
43
|
43
|
42
|
34
|
35
|
40
|
39
|
49
|
38
|
22
|
24
|
15
|
17
|
27
|
31
|
46
|
46
|
47
|
44
|
40
|
45
|
60
|
52
|
|
2024/09
|
35
|
38
|
27
|
31
|
39
|
35
|
42
|
41
|
42
|
29
|
44
|
31
|
28
|
32
|
26
|
21
|
22
|
26
|
33
|
29
|
14
|
22
|
31
|
37
|
46
|
67
|
59
|
80
|
60
|
16
|
|
|
2024/08
|
25
|
26
|
20
|
12
|
15
|
20
|
19
|
24
|
24
|
27
|
61
|
48
|
32
|
26
|
28
|
43
|
34
|
23
|
30
|
27
|
31
|
37
|
39
|
40
|
28
|
31
|
25
|
22
|
24
|
32
|
36
|
|
2024/07
|
20
|
21
|
25
|
19
|
15
|
15
|
24
|
16
|
14
|
28
|
14
|
13
|
20
|
10
|
16
|
22
|
23
|
20
|
21
|
20
|
23
|
22
|
27
|
28
|
41
|
34
|
29
|
31
|
19
|
10
|
15
|
|
2024/06
|
43
|
48
|
37
|
21
|
18
|
22
|
27
|
24
|
26
|
31
|
29
|
30
|
34
|
32
|
33
|
24
|
19
|
21
|
20
|
17
|
11
|
17
|
26
|
36
|
24
|
30
|
31
|
33
|
26
|
34
|
|
|
2024/05
|
19
|
22
|
21
|
15
|
27
|
41
|
45
|
38
|
31
|
30
|
33
|
54
|
57
|
55
|
51
|
45
|
52
|
64
|
24
|
19
|
32
|
37
|
36
|
38
|
41
|
19
|
23
|
39
|
24
|
23
|
35
|
|
2024/04
|
38
|
26
|
38
|
32
|
35
|
27
|
21
|
30
|
36
|
31
|
24
|
31
|
36
|
38
|
51
|
47
|
33
|
30
|
36
|
72
|
68
|
55
|
47
|
55
|
33
|
37
|
38
|
27
|
32
|
21
|
|
|
2024/03
|
53
|
49
|
54
|
65
|
62
|
56
|
48
|
55
|
53
|
60
|
58
|
55
|
51
|
43
|
55
|
56
|
60
|
26
|
42
|
63
|
58
|
58
|
53
|
23
|
21
|
29
|
29
|
43
|
47
|
43
|
43
|
|
2024/02
|
57
|
23
|
21
|
24
|
38
|
48
|
52
|
49
|
67
|
151
|
75
|
53
|
56
|
63
|
36
|
33
|
34
|
47
|
398
|
54
|
15
|
21
|
29
|
31
|
44
|
52
|
53
|
53
|
55
|
||
|
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