Air Quality
Excellent
No health implications.
8
PM2.5
24
PM10
26
O3
0.4
CO
5
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Jul
41
Excellent
Wed
30 Jul
43
Excellent
Thu
31 Jul
50
Excellent
Fri
1 Aug
49
Excellent
Sat
2 Aug
75
Good
Sun
3 Aug
22
Excellent
Mon
4 Aug
49
Excellent
Air quality in the last 12 months (Chongchuan)
|
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
|
|
|
2024/08
|
34
|
31
|
36
|
29
|
37
|
26
|
31
|
32
|
31
|
41
|
42
|
37
|
36
|
19
|
16
|
26
|
26
|
16
|
17
|
23
|
35
|
45
|
39
|
24
|
20
|
21
|
28
|
24
|
18
|
22
|
24
|
|
2024/07
|
24
|
30
|
29
|
32
|
25
|
40
|
33
|
37
|
38
|
14
|
22
|
16
|
18
|
29
|
55
|
45
|
36
|
31
|
36
|
39
|
39
|
40
|
27
|
21
|
19
|
23
|
24
|
18
|
20
|
20
|
28
|
|
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