Air Quality
Excellent
No health implications.
9
PM2.5
18
PM10
13
O3
0.7
CO
2
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Sep
44
Excellent
Fri
26 Sep
76
Good
Sat
27 Sep
87
Good
Sun
28 Sep
57
Good
Mon
29 Sep
58
Good
Tue
30 Sep
31
Excellent
Wed
1 Oct
23
Excellent
Air quality in the last 12 months (Chongchuan)
|
2025/08
|
27
|
16
|
21
|
19
|
27
|
34
|
28
|
33
|
36
|
23
|
15
|
33
|
23
|
18
|
17
|
21
|
29
|
20
|
24
|
29
|
35
|
48
|
49
|
39
|
32
|
32
|
30
|
20
|
21
|
17
|
27
|
|
2025/07
|
25
|
31
|
37
|
41
|
39
|
39
|
24
|
13
|
17
|
45
|
28
|
20
|
30
|
33
|
52
|
47
|
35
|
22
|
20
|
21
|
20
|
19
|
16
|
21
|
23
|
15
|
15
|
20
|
19
|
10
|
10
|
|
2025/06
|
15
|
8
|
40
|
63
|
52
|
45
|
35
|
13
|
18
|
18
|
16
|
16
|
13
|
28
|
18
|
30
|
46
|
46
|
34
|
26
|
20
|
14
|
14
|
17
|
38
|
43
|
35
|
29
|
27
|
29
|
|
|
2025/05
|
56
|
59
|
49
|
26
|
31
|
70
|
59
|
43
|
16
|
35
|
43
|
50
|
48
|
44
|
57
|
22
|
54
|
59
|
49
|
42
|
26
|
34
|
17
|
48
|
48
|
41
|
33
|
35
|
59
|
59
|
51
|
|
2025/04
|
44
|
66
|
49
|
52
|
61
|
64
|
79
|
78
|
101
|
74
|
70
|
111
|
96
|
67
|
60
|
57
|
64
|
65
|
56
|
40
|
46
|
46
|
66
|
77
|
56
|
44
|
43
|
41
|
55
|
57
|
|
|
2025/03
|
54
|
65
|
15
|
12
|
22
|
40
|
52
|
66
|
48
|
38
|
62
|
28
|
42
|
40
|
27
|
46
|
53
|
41
|
47
|
61
|
68
|
64
|
77
|
69
|
88
|
78
|
82
|
47
|
71
|
37
|
38
|
|
2025/02
|
21
|
59
|
76
|
56
|
59
|
41
|
48
|
32
|
43
|
53
|
36
|
81
|
50
|
43
|
86
|
135
|
64
|
50
|
45
|
35
|
34
|
50
|
48
|
68
|
97
|
123
|
140
|
84
|
|||
|
2025/01
|
64
|
52
|
53
|
48
|
96
|
91
|
65
|
71
|
37
|
40
|
64
|
79
|
90
|
113
|
50
|
65
|
74
|
71
|
117
|
180
|
108
|
51
|
40
|
40
|
32
|
44
|
62
|
68
|
116
|
53
|
52
|
|
2024/12
|
71
|
85
|
58
|
36
|
71
|
138
|
132
|
38
|
50
|
42
|
70
|
43
|
62
|
59
|
65
|
77
|
92
|
57
|
40
|
63
|
88
|
46
|
44
|
61
|
93
|
109
|
52
|
56
|
71
|
86
|
75
|
|
2024/11
|
10
|
56
|
71
|
61
|
39
|
27
|
27
|
33
|
40
|
41
|
42
|
54
|
51
|
41
|
54
|
28
|
34
|
30
|
24
|
30
|
64
|
76
|
26
|
33
|
28
|
45
|
72
|
72
|
52
|
69
|
|
|
2024/10
|
17
|
26
|
18
|
20
|
22
|
7
|
10
|
38
|
35
|
56
|
81
|
68
|
26
|
27
|
52
|
42
|
32
|
34
|
26
|
28
|
22
|
33
|
42
|
32
|
34
|
22
|
20
|
48
|
28
|
31
|
26
|
|
2024/09
|
31
|
34
|
18
|
22
|
24
|
27
|
41
|
29
|
19
|
27
|
12
|
20
|
18
|
18
|
20
|
13
|
14
|
16
|
18
|
10
|
17
|
26
|
22
|
23
|
30
|
16
|
31
|
32
|
36
|
33
|
|
|
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