Air Quality
Excellent
No health implications.
28
PM2.5
47
PM10
7
O3
1.0
CO
9
SO2
28
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 May
35
Excellent
Sat
4 May
29
Excellent
Sun
5 May
51
Good
Mon
6 May
63
Good
Tue
7 May
39
Excellent
Wed
8 May
48
Excellent
Thu
9 May
46
Excellent
Air quality in the last 12 months (Chengzhong)
|
2024/02
|
39
|
28
|
24
|
15
|
18
|
17
|
16
|
29
|
40
|
101
|
130
|
118
|
125
|
91
|
70
|
29
|
68
|
48
|
45
|
56
|
63
|
16
|
15
|
16
|
16
|
15
|
23
|
17
|
17
|
||
|
2024/01
|
117
|
46
|
27
|
47
|
110
|
59
|
62
|
30
|
29
|
42
|
51
|
45
|
61
|
72
|
75
|
69
|
88
|
85
|
69
|
12
|
21
|
16
|
46
|
41
|
45
|
50
|
47
|
44
|
30
|
23
|
41
|
|
2023/12
|
60
|
41
|
21
|
21
|
43
|
54
|
70
|
59
|
65
|
48
|
47
|
25
|
53
|
113
|
37
|
17
|
31
|
14
|
16
|
32
|
50
|
59
|
50
|
50
|
68
|
96
|
109
|
103
|
100
|
130
|
140
|
|
2023/11
|
59
|
62
|
57
|
42
|
39
|
26
|
25
|
39
|
50
|
38
|
14
|
11
|
11
|
25
|
30
|
26
|
51
|
56
|
61
|
71
|
72
|
79
|
77
|
71
|
68
|
79
|
64
|
71
|
78
|
78
|
|
|
2023/10
|
40
|
36
|
42
|
43
|
28
|
28
|
30
|
21
|
27
|
22
|
26
|
41
|
53
|
45
|
43
|
55
|
61
|
55
|
29
|
20
|
32
|
40
|
48
|
58
|
53
|
57
|
19
|
24
|
29
|
45
|
53
|
|
2023/09
|
37
|
39
|
26
|
22
|
32
|
38
|
34
|
27
|
22
|
21
|
15
|
17
|
16
|
18
|
27
|
33
|
35
|
28
|
21
|
25
|
27
|
31
|
31
|
41
|
41
|
41
|
41
|
37
|
40
|
41
|
|
|
2023/08
|
32
|
27
|
34
|
32
|
18
|
16
|
15
|
17
|
19
|
26
|
27
|
29
|
30
|
33
|
23
|
27
|
32
|
46
|
37
|
33
|
24
|
30
|
19
|
25
|
27
|
28
|
23
|
13
|
23
|
34
|
38
|
|
2023/07
|
29
|
33
|
28
|
22
|
23
|
18
|
24
|
28
|
24
|
29
|
27
|
30
|
29
|
28
|
35
|
37
|
50
|
26
|
21
|
22
|
22
|
27
|
30
|
31
|
37
|
44
|
40
|
43
|
50
|
38
|
25
|
|
2023/06
|
43
|
41
|
43
|
32
|
31
|
27
|
23
|
18
|
23
|
25
|
48
|
48
|
30
|
25
|
38
|
33
|
23
|
23
|
25
|
25
|
31
|
18
|
18
|
25
|
18
|
18
|
26
|
26
|
27
|
22
|
|
|
2023/05
|
71
|
41
|
34
|
30
|
43
|
48
|
18
|
25
|
49
|
32
|
16
|
27
|
52
|
64
|
62
|
37
|
43
|
49
|
48
|
49
|
51
|
37
|
26
|
27
|
40
|
27
|
21
|
30
|
34
|
58
|
53
|
|
2023/04
|
51
|
35
|
38
|
44
|
35
|
23
|
43
|
71
|
69
|
39
|
23
|
52
|
51
|
51
|
52
|
69
|
56
|
49
|
42
|
37
|
51
|
42
|
35
|
14
|
17
|
30
|
45
|
51
|
39
|
86
|
|
|
2023/03
|
97
|
85
|
101
|
77
|
79
|
90
|
107
|
102
|
88
|
69
|
57
|
109
|
86
|
89
|
71
|
66
|
45
|
32
|
23
|
52
|
46
|
54
|
49
|
23
|
14
|
33
|
28
|
43
|
37
|
44
|
46
|
|
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