Air Quality
Excellent
No health implications.
5
PM2.5
15
PM10
93
O3
0.3
CO
4
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Mar
58
Good
Sun
23 Mar
49
Excellent
Mon
24 Mar
57
Good
Tue
25 Mar
63
Good
Wed
26 Mar
64
Good
Thu
27 Mar
51
Good
Fri
28 Mar
15
Excellent
Chengzihe Air quality rank
Air quality in the last 12 months (Chengzihe)
|
2025/02
|
67
|
103
|
91
|
41
|
31
|
32
|
49
|
34
|
32
|
44
|
64
|
75
|
37
|
33
|
48
|
49
|
26
|
21
|
22
|
29
|
30
|
27
|
25
|
33
|
69
|
36
|
63
|
74
|
|||
|
2025/01
|
86
|
65
|
46
|
56
|
95
|
99
|
87
|
69
|
43
|
41
|
65
|
103
|
98
|
76
|
49
|
68
|
67
|
110
|
137
|
132
|
138
|
179
|
139
|
99
|
101
|
102
|
83
|
77
|
78
|
50
|
48
|
|
2024/12
|
35
|
29
|
36
|
25
|
19
|
28
|
23
|
30
|
46
|
58
|
28
|
34
|
32
|
37
|
34
|
37
|
32
|
28
|
34
|
80
|
64
|
56
|
49
|
39
|
79
|
40
|
25
|
39
|
64
|
93
|
94
|
|
2024/11
|
65
|
51
|
57
|
46
|
48
|
21
|
51
|
98
|
103
|
90
|
77
|
139
|
184
|
135
|
98
|
91
|
28
|
33
|
63
|
71
|
91
|
36
|
43
|
72
|
68
|
24
|
37
|
52
|
34
|
24
|
|
|
2024/10
|
12
|
26
|
49
|
51
|
55
|
42
|
33
|
57
|
54
|
43
|
36
|
49
|
49
|
54
|
25
|
39
|
52
|
55
|
37
|
39
|
56
|
35
|
33
|
51
|
62
|
51
|
27
|
50
|
62
|
63
|
73
|
|
2024/09
|
20
|
12
|
26
|
38
|
12
|
21
|
30
|
36
|
34
|
19
|
24
|
33
|
28
|
22
|
28
|
38
|
24
|
30
|
30
|
21
|
30
|
33
|
40
|
43
|
36
|
21
|
36
|
43
|
45
|
33
|
|
|
2024/08
|
21
|
15
|
19
|
14
|
18
|
19
|
28
|
33
|
35
|
34
|
10
|
18
|
23
|
25
|
21
|
30
|
26
|
28
|
11
|
20
|
17
|
21
|
21
|
29
|
27
|
28
|
26
|
30
|
32
|
31
|
12
|
|
2024/07
|
72
|
71
|
51
|
32
|
35
|
52
|
51
|
64
|
59
|
47
|
65
|
33
|
29
|
37
|
49
|
47
|
31
|
16
|
26
|
38
|
38
|
30
|
32
|
20
|
23
|
13
|
18
|
21
|
18
|
21
|
24
|
|
2024/06
|
10
|
29
|
37
|
25
|
31
|
30
|
36
|
34
|
21
|
22
|
44
|
23
|
20
|
19
|
18
|
19
|
24
|
25
|
39
|
33
|
12
|
8
|
7
|
8
|
16
|
31
|
30
|
53
|
54
|
52
|
|
|
2024/05
|
52
|
73
|
56
|
64
|
74
|
68
|
49
|
52
|
42
|
43
|
26
|
23
|
35
|
34
|
19
|
35
|
40
|
57
|
30
|
29
|
35
|
50
|
34
|
19
|
38
|
28
|
18
|
24
|
19
|
17
|
11
|
|
2024/04
|
36
|
39
|
64
|
27
|
45
|
75
|
38
|
21
|
47
|
60
|
91
|
83
|
59
|
86
|
187
|
48
|
45
|
70
|
53
|
104
|
134
|
79
|
55
|
44
|
62
|
62
|
64
|
74
|
68
|
42
|
|
|
2024/03
|
45
|
37
|
45
|
41
|
41
|
47
|
53
|
45
|
29
|
62
|
85
|
58
|
68
|
67
|
44
|
22
|
20
|
34
|
41
|
42
|
48
|
47
|
23
|
28
|
42
|
56
|
50
|
63
|
82
|
47
|
50
|
|
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