Air Quality
Excellent
No health implications.
6
PM2.5
15
PM10
32
O3
1.0
CO
7
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Mar
69
Good
Fri
20 Mar
35
Excellent
Sat
21 Mar
74
Good
Sun
22 Mar
50
Excellent
Mon
23 Mar
53
Good
Tue
24 Mar
17
Excellent
Wed
25 Mar
23
Excellent
Air quality in the last 12 months (Chengzhong)
|
2026/02
|
34
|
51
|
75
|
170
|
158
|
62
|
41
|
25
|
47
|
28
|
21
|
31
|
40
|
55
|
72
|
61
|
23
|
36
|
40
|
53
|
122
|
205
|
107
|
46
|
36
|
71
|
25
|
30
|
|||
|
2026/01
|
24
|
22
|
33
|
57
|
19
|
39
|
55
|
79
|
97
|
111
|
67
|
109
|
135
|
116
|
144
|
119
|
174
|
98
|
77
|
21
|
16
|
26
|
35
|
54
|
125
|
71
|
23
|
41
|
88
|
49
|
16
|
|
2025/12
|
97
|
83
|
73
|
77
|
62
|
68
|
91
|
61
|
76
|
104
|
144
|
97
|
23
|
44
|
56
|
72
|
68
|
61
|
81
|
79
|
67
|
66
|
77
|
12
|
38
|
56
|
60
|
75
|
89
|
80
|
68
|
|
2025/11
|
32
|
34
|
13
|
10
|
26
|
42
|
38
|
24
|
12
|
13
|
14
|
28
|
39
|
42
|
50
|
55
|
55
|
22
|
22
|
27
|
26
|
45
|
64
|
46
|
43
|
52
|
51
|
66
|
74
|
95
|
|
|
2025/10
|
39
|
31
|
29
|
34
|
29
|
15
|
25
|
37
|
42
|
44
|
45
|
46
|
32
|
25
|
26
|
41
|
46
|
35
|
15
|
13
|
15
|
13
|
26
|
41
|
43
|
41
|
35
|
36
|
40
|
53
|
30
|
|
2025/09
|
31
|
26
|
22
|
26
|
31
|
31
|
34
|
34
|
15
|
23
|
17
|
20
|
25
|
34
|
22
|
27
|
21
|
31
|
37
|
33
|
17
|
15
|
25
|
17
|
11
|
20
|
28
|
31
|
34
|
43
|
|
|
2025/08
|
23
|
26
|
26
|
28
|
21
|
17
|
18
|
28
|
29
|
31
|
34
|
34
|
33
|
38
|
13
|
22
|
26
|
14
|
16
|
18
|
20
|
25
|
30
|
32
|
27
|
25
|
30
|
28
|
33
|
22
|
23
|
|
2025/07
|
17
|
20
|
20
|
40
|
45
|
41
|
44
|
25
|
29
|
28
|
24
|
27
|
34
|
29
|
23
|
28
|
29
|
45
|
41
|
36
|
18
|
16
|
13
|
22
|
36
|
43
|
55
|
37
|
35
|
29
|
29
|
|
2025/06
|
28
|
15
|
23
|
46
|
57
|
36
|
27
|
27
|
21
|
19
|
23
|
25
|
23
|
20
|
25
|
18
|
17
|
15
|
24
|
22
|
20
|
25
|
30
|
27
|
24
|
36
|
16
|
25
|
21
|
18
|
|
|
2025/05
|
44
|
53
|
43
|
28
|
35
|
31
|
34
|
40
|
24
|
39
|
34
|
52
|
51
|
43
|
28
|
21
|
20
|
17
|
15
|
29
|
28
|
27
|
22
|
31
|
49
|
50
|
51
|
39
|
15
|
35
|
32
|
|
2025/04
|
40
|
60
|
74
|
73
|
89
|
96
|
107
|
88
|
101
|
99
|
53
|
59
|
129
|
161
|
114
|
108
|
100
|
79
|
55
|
43
|
45
|
42
|
30
|
31
|
24
|
35
|
41
|
34
|
50
|
49
|
|
|
2025/03
|
50
|
52
|
57
|
29
|
18
|
17
|
26
|
40
|
34
|
41
|
57
|
58
|
38
|
33
|
11
|
32
|
50
|
32
|
39
|
71
|
79
|
85
|
89
|
89
|
85
|
57
|
54
|
75
|
23
|
17
|
21
|
|
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