Air Quality
Excellent
No health implications.
27
PM2.5
39
PM10
69
O3
0.7
CO
7
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 May
63
Good
Thu
9 May
70
Good
Fri
10 May
77
Good
Sat
11 May
94
Good
Sun
12 May
91
Good
Mon
13 May
88
Good
Tue
14 May
96
Good
Air quality in the last 12 months (Chenggu)
|
2024/02
|
99
|
33
|
49
|
57
|
60
|
70
|
81
|
90
|
122
|
207
|
95
|
87
|
88
|
78
|
56
|
56
|
65
|
155
|
500
|
112
|
20
|
38
|
52
|
57
|
70
|
73
|
84
|
95
|
79
|
||
|
2024/01
|
147
|
98
|
82
|
97
|
118
|
127
|
134
|
117
|
117
|
88
|
104
|
122
|
157
|
170
|
133
|
62
|
59
|
75
|
39
|
44
|
45
|
33
|
40
|
56
|
62
|
71
|
77
|
86
|
86
|
102
|
132
|
|
2023/12
|
58
|
69
|
81
|
80
|
84
|
115
|
104
|
94
|
117
|
107
|
21
|
38
|
28
|
24
|
54
|
56
|
56
|
57
|
84
|
79
|
87
|
114
|
144
|
141
|
127
|
121
|
123
|
169
|
207
|
170
|
134
|
|
2023/11
|
51
|
59
|
34
|
31
|
36
|
44
|
54
|
58
|
56
|
61
|
34
|
39
|
56
|
55
|
52
|
79
|
62
|
66
|
71
|
87
|
97
|
73
|
69
|
67
|
57
|
70
|
85
|
80
|
80
|
49
|
|
|
2023/10
|
25
|
21
|
18
|
15
|
23
|
23
|
20
|
22
|
34
|
43
|
45
|
39
|
35
|
32
|
31
|
44
|
51
|
28
|
20
|
27
|
33
|
39
|
49
|
51
|
53
|
47
|
51
|
40
|
40
|
42
|
47
|
|
2023/09
|
35
|
43
|
43
|
39
|
37
|
39
|
45
|
56
|
41
|
32
|
23
|
21
|
28
|
31
|
37
|
41
|
45
|
30
|
17
|
20
|
24
|
22
|
21
|
21
|
16
|
14
|
16
|
17
|
22
|
22
|
|
|
2023/08
|
25
|
29
|
29
|
25
|
31
|
27
|
20
|
23
|
33
|
35
|
32
|
25
|
31
|
32
|
35
|
36
|
78
|
57
|
49
|
23
|
34
|
35
|
28
|
29
|
28
|
21
|
26
|
26
|
30
|
31
|
31
|
|
2023/07
|
27
|
24
|
25
|
30
|
44
|
44
|
36
|
50
|
43
|
40
|
36
|
35
|
22
|
29
|
44
|
39
|
36
|
39
|
39
|
45
|
40
|
44
|
39
|
37
|
35
|
30
|
21
|
17
|
24
|
23
|
23
|
|
2023/06
|
25
|
22
|
25
|
22
|
28
|
36
|
44
|
46
|
45
|
46
|
62
|
37
|
37
|
37
|
35
|
24
|
20
|
23
|
43
|
55
|
54
|
45
|
38
|
37
|
37
|
42
|
37
|
31
|
37
|
37
|
|
|
2023/05
|
59
|
55
|
51
|
57
|
66
|
27
|
24
|
32
|
29
|
30
|
35
|
54
|
55
|
58
|
54
|
53
|
55
|
48
|
51
|
58
|
30
|
24
|
27
|
29
|
52
|
36
|
20
|
22
|
18
|
31
|
28
|
|
2023/04
|
61
|
58
|
19
|
23
|
33
|
88
|
86
|
77
|
62
|
63
|
131
|
127
|
61
|
50
|
56
|
63
|
65
|
54
|
54
|
299
|
77
|
19
|
20
|
18
|
33
|
52
|
51
|
108
|
94
|
65
|
|
|
2023/03
|
80
|
83
|
66
|
68
|
71
|
66
|
62
|
53
|
53
|
58
|
111
|
100
|
89
|
61
|
73
|
38
|
25
|
34
|
45
|
53
|
49
|
131
|
31
|
63
|
41
|
42
|
46
|
50
|
48
|
52
|
51
|
|
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