Air Quality
Excellent
No health implications.
11
PM2.5
22
PM10
100
O3
0.4
CO
2
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 May
47
Excellent
Sat
17 May
115
Light
Sun
18 May
91
Good
Mon
19 May
129
Light
Tue
20 May
122
Light
Wed
21 May
116
Light
Thu
22 May
15
Excellent
Air quality in the last 12 months (Chongchuan)
|
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
|
|
2024/06
|
61
|
34
|
50
|
43
|
33
|
21
|
24
|
30
|
41
|
34
|
25
|
23
|
44
|
37
|
31
|
31
|
19
|
29
|
19
|
22
|
36
|
20
|
33
|
42
|
36
|
18
|
25
|
29
|
28
|
15
|
|
|
2024/05
|
42
|
41
|
37
|
43
|
34
|
63
|
61
|
50
|
40
|
43
|
47
|
88
|
84
|
55
|
59
|
46
|
46
|
43
|
32
|
27
|
25
|
40
|
31
|
24
|
25
|
35
|
24
|
27
|
33
|
30
|
42
|
|
2024/04
|
75
|
31
|
31
|
59
|
46
|
49
|
47
|
44
|
67
|
61
|
55
|
29
|
18
|
24
|
45
|
50
|
62
|
95
|
86
|
35
|
24
|
28
|
52
|
61
|
48
|
37
|
20
|
15
|
24
|
45
|
|
|
2024/03
|
49
|
61
|
76
|
42
|
30
|
60
|
56
|
90
|
87
|
56
|
63
|
96
|
61
|
57
|
47
|
59
|
73
|
54
|
101
|
94
|
64
|
69
|
69
|
44
|
35
|
39
|
47
|
64
|
66
|
74
|
90
|
|
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