Air Quality
Excellent
No health implications.
11
PM2.5
25
PM10
118
O3
0.6
CO
5
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
68
Good
Tue
30 Apr
43
Excellent
Wed
1 May
81
Good
Thu
2 May
83
Good
Fri
3 May
78
Good
Sat
4 May
65
Good
Sun
5 May
63
Good
Air quality in the last 12 months (Chun'an)
|
2024/02
|
28
|
20
|
17
|
18
|
26
|
45
|
54
|
79
|
108
|
178
|
71
|
57
|
50
|
45
|
36
|
23
|
34
|
43
|
49
|
23
|
14
|
13
|
22
|
32
|
47
|
82
|
90
|
57
|
28
|
||
|
2024/01
|
164
|
137
|
74
|
60
|
57
|
62
|
161
|
145
|
122
|
94
|
106
|
64
|
64
|
69
|
117
|
74
|
71
|
84
|
26
|
21
|
57
|
47
|
34
|
42
|
52
|
66
|
79
|
81
|
90
|
84
|
66
|
|
2023/12
|
43
|
53
|
72
|
82
|
57
|
64
|
67
|
62
|
58
|
62
|
44
|
19
|
54
|
64
|
40
|
32
|
49
|
39
|
33
|
56
|
54
|
50
|
51
|
61
|
63
|
75
|
83
|
117
|
181
|
141
|
110
|
|
2023/11
|
52
|
47
|
49
|
60
|
54
|
25
|
40
|
50
|
45
|
21
|
20
|
22
|
52
|
53
|
67
|
60
|
75
|
68
|
58
|
55
|
54
|
56
|
64
|
65
|
55
|
66
|
62
|
61
|
67
|
65
|
|
|
2023/10
|
31
|
33
|
36
|
26
|
34
|
33
|
21
|
19
|
33
|
41
|
47
|
47
|
46
|
43
|
48
|
56
|
56
|
61
|
62
|
26
|
34
|
43
|
43
|
44
|
59
|
77
|
77
|
70
|
58
|
58
|
57
|
|
2023/09
|
41
|
41
|
40
|
34
|
26
|
34
|
39
|
40
|
47
|
51
|
56
|
55
|
27
|
17
|
19
|
19
|
24
|
34
|
38
|
28
|
20
|
19
|
18
|
36
|
47
|
48
|
50
|
48
|
44
|
26
|
|
|
2023/08
|
27
|
24
|
27
|
29
|
37
|
37
|
32
|
36
|
40
|
40
|
43
|
41
|
32
|
34
|
36
|
35
|
31
|
41
|
29
|
26
|
31
|
20
|
28
|
48
|
51
|
31
|
23
|
18
|
19
|
25
|
28
|
|
2023/07
|
37
|
27
|
27
|
27
|
24
|
29
|
30
|
33
|
32
|
36
|
40
|
35
|
35
|
36
|
36
|
32
|
30
|
28
|
27
|
18
|
26
|
19
|
20
|
26
|
30
|
25
|
17
|
10
|
16
|
22
|
23
|
|
2023/06
|
49
|
61
|
72
|
65
|
49
|
43
|
37
|
27
|
38
|
43
|
58
|
71
|
50
|
60
|
62
|
50
|
34
|
30
|
26
|
20
|
29
|
46
|
28
|
18
|
18
|
21
|
27
|
27
|
27
|
31
|
|
|
2023/05
|
56
|
45
|
39
|
41
|
27
|
26
|
25
|
37
|
47
|
50
|
50
|
48
|
47
|
54
|
55
|
60
|
31
|
32
|
45
|
67
|
60
|
30
|
68
|
53
|
48
|
49
|
40
|
35
|
37
|
50
|
49
|
|
2023/04
|
50
|
49
|
40
|
34
|
36
|
37
|
36
|
50
|
53
|
54
|
62
|
152
|
97
|
44
|
55
|
76
|
69
|
61
|
35
|
32
|
38
|
57
|
42
|
22
|
32
|
34
|
42
|
51
|
62
|
72
|
|
|
2023/03
|
64
|
86
|
87
|
76
|
64
|
60
|
58
|
60
|
60
|
55
|
52
|
64
|
65
|
51
|
58
|
81
|
43
|
34
|
39
|
41
|
44
|
33
|
21
|
55
|
36
|
48
|
86
|
82
|
54
|
26
|
34
|
|
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