Air Quality
Excellent
No health implications.
7
PM2.5
10
PM10
34
O3
0.5
CO
6
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Feb
37
Excellent
Tue
25 Feb
41
Excellent
Wed
26 Feb
55
Good
Thu
27 Feb
65
Good
Fri
28 Feb
63
Good
Sat
1 Mar
56
Good
Sun
2 Mar
46
Excellent
Air quality in the last 12 months (Beichuan)
|
2025/01
|
136
|
120
|
142
|
140
|
104
|
94
|
69
|
66
|
76
|
65
|
55
|
76
|
87
|
78
|
72
|
52
|
80
|
61
|
106
|
135
|
144
|
145
|
170
|
102
|
46
|
81
|
75
|
118
|
180
|
97
|
82
|
|
2024/12
|
106
|
113
|
95
|
66
|
61
|
47
|
43
|
23
|
32
|
46
|
63
|
57
|
53
|
66
|
85
|
107
|
129
|
125
|
87
|
67
|
66
|
56
|
90
|
69
|
79
|
100
|
110
|
95
|
85
|
93
|
112
|
|
2024/11
|
40
|
33
|
35
|
28
|
38
|
42
|
55
|
82
|
42
|
28
|
38
|
24
|
30
|
43
|
37
|
26
|
24
|
12
|
16
|
46
|
45
|
65
|
53
|
31
|
25
|
35
|
51
|
61
|
70
|
96
|
|
|
2024/10
|
27
|
32
|
30
|
24
|
44
|
55
|
66
|
51
|
38
|
37
|
35
|
32
|
36
|
51
|
47
|
52
|
31
|
46
|
22
|
10
|
17
|
33
|
45
|
50
|
43
|
24
|
32
|
51
|
49
|
40
|
36
|
|
2024/09
|
42
|
55
|
44
|
48
|
25
|
34
|
36
|
38
|
35
|
16
|
20
|
25
|
31
|
29
|
20
|
30
|
38
|
48
|
45
|
36
|
21
|
31
|
37
|
51
|
56
|
65
|
85
|
69
|
29
|
19
|
|
|
2024/08
|
51
|
49
|
29
|
16
|
27
|
35
|
24
|
29
|
30
|
48
|
49
|
48
|
53
|
61
|
35
|
31
|
35
|
30
|
46
|
55
|
48
|
55
|
51
|
41
|
47
|
35
|
37
|
39
|
29
|
30
|
41
|
|
2024/07
|
17
|
31
|
18
|
22
|
26
|
44
|
15
|
10
|
13
|
23
|
31
|
38
|
25
|
13
|
14
|
20
|
15
|
18
|
21
|
17
|
17
|
20
|
28
|
26
|
53
|
59
|
38
|
33
|
25
|
38
|
42
|
|
2024/06
|
44
|
24
|
31
|
23
|
32
|
27
|
42
|
30
|
27
|
38
|
41
|
39
|
50
|
42
|
48
|
25
|
17
|
27
|
34
|
26
|
33
|
27
|
42
|
57
|
28
|
33
|
24
|
30
|
53
|
46
|
|
|
2024/05
|
25
|
21
|
16
|
36
|
71
|
87
|
90
|
73
|
81
|
64
|
61
|
73
|
79
|
70
|
70
|
72
|
75
|
89
|
49
|
37
|
41
|
54
|
69
|
79
|
51
|
36
|
33
|
25
|
18
|
32
|
55
|
|
2024/04
|
54
|
58
|
82
|
67
|
35
|
38
|
35
|
63
|
45
|
25
|
38
|
57
|
56
|
61
|
70
|
62
|
52
|
34
|
26
|
68
|
84
|
55
|
41
|
44
|
42
|
65
|
71
|
76
|
40
|
25
|
|
|
2024/03
|
59
|
50
|
72
|
73
|
71
|
69
|
71
|
78
|
65
|
52
|
68
|
59
|
26
|
57
|
56
|
81
|
78
|
52
|
71
|
70
|
75
|
81
|
72
|
37
|
35
|
35
|
34
|
47
|
53
|
49
|
50
|
|
2024/02
|
75
|
46
|
29
|
40
|
38
|
53
|
54
|
80
|
121
|
203
|
128
|
94
|
92
|
85
|
48
|
46
|
58
|
61
|
238
|
336
|
47
|
60
|
33
|
63
|
78
|
66
|
64
|
49
|
44
|
||
|
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