Air Quality
Excellent
No health implications.
20
PM2.5
36
PM10
20
O3
0.5
CO
4
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Jul
77
Good
Fri
18 Jul
69
Good
Sat
19 Jul
50
Excellent
Sun
20 Jul
45
Excellent
Mon
21 Jul
48
Excellent
Tue
22 Jul
21
Excellent
Wed
23 Jul
18
Excellent
Air quality in the last 12 months (Chun'an)
|
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
|
|
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
|
|
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