Air Quality
Excellent
No health implications.
13
PM2.5
31
PM10
34
O3
0.8
CO
6
SO2
28
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 May
53
Good
Thu
2 May
49
Excellent
Fri
3 May
55
Good
Sat
4 May
52
Good
Sun
5 May
52
Good
Mon
6 May
60
Good
Tue
7 May
66
Good
Air quality in the last 12 months (Chaotian)
|
2024/02
|
53
|
32
|
29
|
39
|
43
|
47
|
55
|
69
|
72
|
125
|
86
|
76
|
74
|
64
|
35
|
43
|
46
|
107
|
464
|
219
|
43
|
44
|
41
|
66
|
64
|
60
|
55
|
55
|
57
|
||
|
2024/01
|
90
|
54
|
56
|
83
|
75
|
63
|
66
|
81
|
73
|
60
|
81
|
107
|
128
|
90
|
58
|
43
|
40
|
42
|
29
|
40
|
48
|
43
|
49
|
39
|
45
|
53
|
61
|
60
|
72
|
72
|
62
|
|
2023/12
|
39
|
41
|
45
|
50
|
61
|
94
|
63
|
70
|
60
|
61
|
43
|
37
|
28
|
27
|
64
|
52
|
47
|
43
|
59
|
68
|
60
|
65
|
74
|
70
|
69
|
76
|
84
|
100
|
89
|
110
|
131
|
|
2023/11
|
36
|
38
|
31
|
28
|
31
|
37
|
39
|
32
|
40
|
32
|
32
|
37
|
28
|
25
|
45
|
43
|
42
|
46
|
59
|
59
|
57
|
43
|
59
|
66
|
36
|
38
|
46
|
40
|
41
|
42
|
|
|
2023/10
|
23
|
23
|
19
|
21
|
22
|
25
|
22
|
19
|
24
|
36
|
28
|
22
|
31
|
30
|
30
|
44
|
37
|
24
|
31
|
34
|
32
|
37
|
48
|
46
|
40
|
32
|
32
|
30
|
37
|
42
|
38
|
|
2023/09
|
28
|
32
|
30
|
32
|
36
|
33
|
35
|
33
|
29
|
20
|
26
|
25
|
27
|
20
|
31
|
31
|
29
|
22
|
24
|
30
|
29
|
23
|
22
|
22
|
21
|
19
|
19
|
21
|
26
|
22
|
|
|
2023/08
|
34
|
24
|
23
|
26
|
31
|
32
|
28
|
24
|
28
|
30
|
25
|
29
|
30
|
30
|
31
|
32
|
60
|
38
|
27
|
24
|
35
|
34
|
35
|
25
|
27
|
25
|
29
|
29
|
30
|
34
|
30
|
|
2023/07
|
38
|
23
|
24
|
39
|
38
|
38
|
34
|
37
|
35
|
37
|
33
|
33
|
28
|
30
|
30
|
32
|
35
|
33
|
36
|
34
|
34
|
39
|
38
|
29
|
29
|
29
|
16
|
20
|
23
|
27
|
29
|
|
2023/06
|
27
|
25
|
24
|
26
|
36
|
32
|
37
|
36
|
51
|
53
|
53
|
38
|
38
|
36
|
33
|
26
|
20
|
38
|
52
|
51
|
36
|
35
|
35
|
32
|
33
|
36
|
35
|
29
|
43
|
39
|
|
|
2023/05
|
61
|
56
|
42
|
53
|
70
|
32
|
24
|
25
|
20
|
27
|
43
|
45
|
55
|
57
|
57
|
57
|
59
|
38
|
52
|
50
|
39
|
34
|
36
|
35
|
34
|
26
|
24
|
19
|
23
|
27
|
32
|
|
2023/04
|
52
|
42
|
29
|
30
|
32
|
97
|
72
|
66
|
61
|
64
|
87
|
63
|
38
|
63
|
56
|
57
|
52
|
51
|
42
|
234
|
79
|
21
|
22
|
25
|
33
|
45
|
45
|
74
|
76
|
63
|
|
|
2023/03
|
62
|
64
|
56
|
62
|
56
|
63
|
51
|
46
|
59
|
63
|
94
|
79
|
66
|
55
|
77
|
38
|
29
|
29
|
27
|
34
|
37
|
109
|
31
|
41
|
34
|
38
|
44
|
39
|
43
|
43
|
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