Air Quality
Excellent
No health implications.
17
PM2.5
1
PM10
24
O3
0.8
CO
3
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Mar
57
Good
Thu
19 Mar
56
Good
Fri
20 Mar
58
Good
Sat
21 Mar
49
Excellent
Sun
22 Mar
43
Excellent
Mon
23 Mar
45
Excellent
Tue
24 Mar
23
Excellent
Air quality in the last 12 months (Chun'an)
|
2026/02
|
34
|
45
|
74
|
76
|
89
|
43
|
22
|
48
|
40
|
44
|
50
|
62
|
63
|
48
|
41
|
23
|
65
|
47
|
41
|
37
|
33
|
58
|
124
|
45
|
26
|
28
|
14
|
23
|
|||
|
2026/01
|
24
|
47
|
86
|
93
|
78
|
70
|
57
|
54
|
60
|
57
|
68
|
64
|
60
|
62
|
61
|
77
|
109
|
100
|
54
|
21
|
53
|
65
|
74
|
87
|
112
|
96
|
37
|
86
|
69
|
32
|
14
|
|
2025/12
|
95
|
111
|
58
|
60
|
66
|
75
|
82
|
100
|
67
|
64
|
75
|
74
|
41
|
48
|
58
|
60
|
90
|
150
|
107
|
99
|
54
|
46
|
56
|
29
|
53
|
58
|
58
|
61
|
61
|
104
|
51
|
|
2025/11
|
42
|
56
|
57
|
50
|
44
|
43
|
29
|
41
|
13
|
49
|
38
|
36
|
41
|
57
|
79
|
71
|
54
|
33
|
41
|
47
|
58
|
71
|
67
|
63
|
83
|
87
|
97
|
98
|
70
|
65
|
|
|
2025/10
|
32
|
35
|
36
|
39
|
33
|
35
|
50
|
45
|
32
|
35
|
43
|
57
|
49
|
26
|
30
|
26
|
31
|
20
|
14
|
25
|
25
|
30
|
32
|
36
|
48
|
50
|
41
|
53
|
43
|
37
|
34
|
|
2025/09
|
26
|
20
|
24
|
31
|
32
|
26
|
28
|
26
|
15
|
16
|
25
|
25
|
23
|
18
|
27
|
30
|
24
|
23
|
22
|
19
|
22
|
30
|
29
|
17
|
25
|
31
|
33
|
37
|
42
|
39
|
|
|
2025/08
|
32
|
36
|
30
|
30
|
21
|
13
|
17
|
22
|
26
|
32
|
33
|
29
|
15
|
16
|
17
|
22
|
22
|
25
|
27
|
26
|
24
|
19
|
17
|
24
|
24
|
26
|
26
|
18
|
21
|
27
|
27
|
|
2025/07
|
18
|
23
|
26
|
32
|
28
|
22
|
20
|
15
|
17
|
31
|
25
|
17
|
24
|
29
|
32
|
35
|
31
|
30
|
20
|
15
|
13
|
15
|
19
|
21
|
21
|
13
|
16
|
14
|
21
|
17
|
18
|
|
2025/06
|
25
|
15
|
23
|
40
|
32
|
34
|
41
|
33
|
22
|
21
|
15
|
23
|
22
|
17
|
10
|
27
|
37
|
23
|
21
|
20
|
21
|
20
|
12
|
15
|
25
|
25
|
23
|
20
|
22
|
26
|
|
|
2025/05
|
44
|
47
|
54
|
51
|
30
|
71
|
109
|
52
|
16
|
35
|
32
|
40
|
39
|
43
|
65
|
42
|
21
|
52
|
37
|
21
|
14
|
27
|
11
|
40
|
59
|
56
|
60
|
42
|
25
|
36
|
41
|
|
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
|
|
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