Air Quality
Excellent
No health implications.
16
PM2.5
21
PM10
129
O3
0.6
CO
3
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Apr
52
Good
Sat
20 Apr
59
Good
Sun
21 Apr
55
Good
Mon
22 Apr
54
Good
Tue
23 Apr
56
Good
Wed
24 Apr
53
Good
Thu
25 Apr
57
Good
Air quality in the last 12 months (Wenchuan)
|
2024/02
|
48
|
39
|
23
|
30
|
32
|
34
|
47
|
56
|
63
|
101
|
81
|
70
|
63
|
61
|
33
|
37
|
46
|
52
|
108
|
160
|
48
|
48
|
36
|
50
|
66
|
73
|
62
|
44
|
27
|
||
|
2024/01
|
124
|
54
|
56
|
71
|
62
|
63
|
82
|
100
|
87
|
82
|
112
|
123
|
136
|
93
|
63
|
54
|
51
|
67
|
46
|
38
|
29
|
31
|
37
|
36
|
45
|
48
|
68
|
84
|
85
|
75
|
57
|
|
2023/12
|
43
|
52
|
65
|
72
|
60
|
56
|
76
|
90
|
92
|
101
|
82
|
59
|
59
|
53
|
44
|
51
|
59
|
60
|
67
|
73
|
63
|
76
|
68
|
50
|
72
|
84
|
118
|
122
|
95
|
122
|
143
|
|
2023/11
|
43
|
45
|
44
|
34
|
34
|
41
|
47
|
51
|
54
|
56
|
20
|
22
|
30
|
24
|
28
|
50
|
55
|
72
|
74
|
82
|
78
|
45
|
61
|
72
|
66
|
38
|
52
|
53
|
42
|
44
|
|
|
2023/10
|
28
|
19
|
30
|
21
|
18
|
14
|
24
|
24
|
25
|
36
|
21
|
20
|
22
|
29
|
34
|
43
|
28
|
21
|
21
|
28
|
36
|
51
|
59
|
69
|
55
|
30
|
24
|
43
|
47
|
49
|
39
|
|
2023/09
|
30
|
36
|
45
|
49
|
50
|
41
|
32
|
30
|
33
|
25
|
18
|
21
|
40
|
36
|
34
|
36
|
32
|
26
|
24
|
17
|
25
|
19
|
16
|
16
|
18
|
22
|
27
|
33
|
22
|
31
|
|
|
2023/08
|
27
|
25
|
20
|
23
|
26
|
26
|
24
|
25
|
25
|
25
|
23
|
24
|
31
|
35
|
32
|
26
|
29
|
35
|
32
|
26
|
35
|
40
|
29
|
27
|
26
|
18
|
28
|
31
|
26
|
25
|
31
|
|
2023/07
|
41
|
47
|
30
|
26
|
51
|
41
|
40
|
44
|
47
|
50
|
37
|
23
|
18
|
27
|
36
|
41
|
46
|
39
|
44
|
41
|
38
|
42
|
43
|
31
|
31
|
21
|
16
|
24
|
31
|
32
|
28
|
|
2023/06
|
23
|
22
|
20
|
18
|
24
|
31
|
32
|
33
|
46
|
46
|
48
|
48
|
39
|
40
|
29
|
24
|
26
|
30
|
34
|
30
|
33
|
37
|
38
|
35
|
44
|
53
|
44
|
31
|
31
|
37
|
|
|
2023/05
|
57
|
41
|
40
|
42
|
56
|
52
|
27
|
22
|
16
|
18
|
26
|
41
|
42
|
49
|
56
|
67
|
66
|
35
|
50
|
39
|
27
|
31
|
40
|
48
|
41
|
32
|
31
|
32
|
38
|
39
|
33
|
|
2023/04
|
68
|
52
|
33
|
40
|
30
|
55
|
72
|
72
|
71
|
86
|
77
|
58
|
42
|
59
|
64
|
74
|
69
|
51
|
48
|
58
|
25
|
16
|
17
|
22
|
29
|
45
|
55
|
39
|
41
|
55
|
|
|
2023/03
|
51
|
64
|
60
|
63
|
71
|
70
|
65
|
42
|
51
|
36
|
48
|
38
|
46
|
51
|
59
|
43
|
33
|
33
|
38
|
18
|
37
|
39
|
27
|
27
|
26
|
30
|
27
|
40
|
43
|
57
|
61
|
|
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