Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
40
*
PM2.5
61
PM10
147
O3
1.4
CO
10
SO2
9
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
27 Jul
87
Good
Mon
28 Jul
63
Good
Tue
29 Jul
84
Good
Wed
30 Jul
69
Good
Thu
31 Jul
59
Good
Fri
1 Aug
58
Good
Sat
2 Aug
23
Excellent
Air quality in the last 12 months (Chengzhong)
|
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
|
|
2025/02
|
27
|
10
|
17
|
50
|
67
|
29
|
19
|
58
|
39
|
66
|
140
|
148
|
55
|
74
|
33
|
29
|
30
|
25
|
26
|
18
|
17
|
19
|
12
|
40
|
63
|
35
|
43
|
56
|
|||
|
2025/01
|
141
|
104
|
85
|
101
|
92
|
105
|
80
|
74
|
56
|
46
|
50
|
100
|
105
|
104
|
74
|
67
|
72
|
111
|
111
|
128
|
113
|
102
|
137
|
91
|
56
|
17
|
44
|
58
|
118
|
119
|
90
|
|
2024/12
|
76
|
96
|
93
|
79
|
76
|
30
|
17
|
34
|
67
|
73
|
15
|
32
|
45
|
57
|
44
|
49
|
92
|
60
|
66
|
92
|
97
|
86
|
90
|
85
|
104
|
88
|
80
|
79
|
87
|
110
|
94
|
|
2024/11
|
43
|
51
|
65
|
86
|
63
|
65
|
51
|
56
|
63
|
62
|
71
|
66
|
70
|
64
|
59
|
48
|
39
|
23
|
19
|
17
|
23
|
29
|
33
|
44
|
52
|
23
|
29
|
41
|
50
|
66
|
|
|
2024/10
|
28
|
28
|
50
|
55
|
60
|
57
|
58
|
42
|
37
|
45
|
54
|
58
|
64
|
55
|
26
|
38
|
35
|
27
|
21
|
17
|
30
|
30
|
28
|
34
|
38
|
39
|
32
|
23
|
41
|
46
|
51
|
|
2024/09
|
30
|
42
|
32
|
29
|
46
|
38
|
15
|
18
|
23
|
24
|
27
|
37
|
43
|
38
|
37
|
29
|
27
|
34
|
39
|
34
|
28
|
18
|
28
|
35
|
42
|
29
|
46
|
52
|
37
|
48
|
|
|
2024/08
|
19
|
19
|
21
|
27
|
32
|
33
|
35
|
27
|
27
|
27
|
27
|
24
|
16
|
19
|
29
|
36
|
28
|
27
|
30
|
30
|
20
|
17
|
27
|
26
|
31
|
34
|
39
|
43
|
36
|
33
|
38
|
|
2024/07
|
23
|
11
|
22
|
22
|
22
|
23
|
22
|
23
|
24
|
24
|
26
|
28
|
27
|
22
|
22
|
25
|
23
|
19
|
23
|
27
|
33
|
33
|
22
|
18
|
37
|
52
|
43
|
17
|
17
|
12
|
13
|
|
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