Air Quality
Excellent
No health implications.
7
PM2.5
13
PM10
38
O3
1.1
CO
7
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jul
48
Excellent
Thu
16 Jul
46
Excellent
Fri
17 Jul
49
Excellent
Sat
18 Jul
51
Good
Sun
19 Jul
57
Good
Mon
20 Jul
44
Excellent
Tue
21 Jul
16
Excellent
Air quality in the last 12 months (Chengzhong)
|
2026/06
|
44
|
41
|
31
|
30
|
26
|
31
|
23
|
23
|
26
|
31
|
43
|
53
|
29
|
20
|
38
|
29
|
24
|
18
|
20
|
25
|
26
|
26
|
25
|
26
|
17
|
21
|
27
|
37
|
30
|
26
|
|
|
2026/05
|
46
|
48
|
24
|
38
|
41
|
42
|
31
|
26
|
29
|
54
|
64
|
56
|
33
|
34
|
35
|
33
|
22
|
22
|
18
|
26
|
22
|
22
|
30
|
30
|
31
|
34
|
34
|
34
|
38
|
21
|
31
|
|
2026/04
|
34
|
75
|
46
|
38
|
53
|
74
|
46
|
55
|
55
|
65
|
71
|
75
|
54
|
50
|
44
|
48
|
27
|
38
|
58
|
49
|
43
|
25
|
16
|
29
|
48
|
61
|
42
|
23
|
24
|
30
|
|
|
2026/03
|
45
|
14
|
16
|
30
|
56
|
39
|
55
|
53
|
13
|
23
|
40
|
56
|
55
|
81
|
72
|
63
|
66
|
43
|
32
|
27
|
29
|
72
|
96
|
61
|
48
|
92
|
49
|
32
|
58
|
44
|
36
|
|
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
|
|
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