Air Quality
Excellent
No health implications.
14
PM2.5
29
PM10
118
O3
0.4
CO
5
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 May
74
Good
Fri
23 May
47
Excellent
Sat
24 May
70
Good
Sun
25 May
82
Good
Mon
26 May
90
Good
Tue
27 May
89
Good
Wed
28 May
50
Excellent
Air quality in the last 12 months (Chun'an)
|
2025/04
|
43
|
44
|
68
|
69
|
60
|
58
|
58
|
54
|
62
|
47
|
52
|
97
|
124
|
95
|
53
|
46
|
58
|
58
|
58
|
65
|
55
|
18
|
43
|
38
|
33
|
44
|
33
|
37
|
53
|
53
|
|
|
2025/03
|
46
|
49
|
28
|
15
|
36
|
44
|
60
|
60
|
81
|
92
|
83
|
55
|
19
|
34
|
15
|
37
|
32
|
42
|
48
|
39
|
41
|
42
|
48
|
55
|
55
|
68
|
59
|
63
|
41
|
59
|
41
|
|
2025/02
|
16
|
24
|
73
|
55
|
38
|
55
|
62
|
37
|
37
|
49
|
71
|
77
|
119
|
106
|
88
|
37
|
59
|
33
|
50
|
26
|
23
|
33
|
53
|
73
|
87
|
66
|
57
|
39
|
|||
|
2025/01
|
115
|
94
|
91
|
92
|
93
|
79
|
81
|
90
|
66
|
38
|
54
|
66
|
70
|
70
|
77
|
49
|
58
|
70
|
62
|
74
|
97
|
89
|
81
|
58
|
44
|
27
|
37
|
64
|
179
|
68
|
53
|
|
2024/12
|
55
|
61
|
91
|
89
|
49
|
52
|
106
|
71
|
56
|
61
|
20
|
75
|
71
|
91
|
67
|
53
|
66
|
78
|
47
|
56
|
75
|
70
|
70
|
76
|
88
|
123
|
125
|
82
|
69
|
81
|
91
|
|
2024/11
|
10
|
28
|
43
|
68
|
58
|
48
|
37
|
43
|
47
|
42
|
44
|
52
|
46
|
51
|
28
|
27
|
21
|
26
|
37
|
41
|
46
|
56
|
78
|
47
|
33
|
30
|
43
|
49
|
48
|
52
|
|
|
2024/10
|
19
|
27
|
31
|
32
|
32
|
21
|
14
|
21
|
44
|
47
|
60
|
60
|
47
|
45
|
44
|
19
|
28
|
32
|
19
|
30
|
47
|
44
|
38
|
46
|
43
|
30
|
13
|
34
|
60
|
45
|
39
|
|
2024/09
|
36
|
40
|
44
|
37
|
29
|
31
|
44
|
36
|
25
|
40
|
19
|
29
|
26
|
29
|
31
|
19
|
19
|
22
|
21
|
17
|
14
|
22
|
24
|
33
|
39
|
52
|
25
|
32
|
41
|
35
|
|
|
2024/08
|
20
|
22
|
27
|
29
|
25
|
29
|
33
|
32
|
31
|
32
|
31
|
21
|
16
|
22
|
27
|
41
|
41
|
37
|
23
|
16
|
15
|
30
|
36
|
40
|
45
|
48
|
41
|
22
|
28
|
29
|
32
|
|
2024/07
|
21
|
20
|
20
|
24
|
24
|
25
|
24
|
23
|
25
|
27
|
31
|
27
|
27
|
22
|
30
|
27
|
28
|
23
|
21
|
24
|
26
|
24
|
26
|
23
|
17
|
12
|
10
|
15
|
14
|
16
|
19
|
|
2024/06
|
12
|
23
|
31
|
45
|
35
|
17
|
19
|
28
|
37
|
20
|
17
|
18
|
29
|
33
|
32
|
33
|
17
|
25
|
22
|
18
|
24
|
23
|
23
|
19
|
11
|
17
|
13
|
22
|
20
|
22
|
|
|
2024/05
|
15
|
41
|
44
|
31
|
17
|
19
|
36
|
58
|
52
|
53
|
44
|
43
|
58
|
49
|
55
|
43
|
45
|
47
|
49
|
46
|
31
|
33
|
41
|
36
|
34
|
22
|
20
|
19
|
32
|
40
|
27
|
|
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