Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Apr
Sat
20 Apr
Sun
21 Apr
Mon
22 Apr
Tue
23 Apr
Wed
24 Apr
Thu
25 Apr
Real-time AQI (Monitoring Station in Ya'an)
建安厂
2415
PM2.5
24
PM10
5
O3
0.6
CO
8
SO2
27
NO2
市政府
148
PM2.5
14
PM10
20
O3
0.5
CO
7
SO2
14
NO2
川农大
136
PM2.5
13
PM10
18
O3
0.5
CO
6
SO2
10
NO2
Air quality in the last 12 months (Ya'an)
|
2024/02
|
71
|
61
|
28
|
38
|
49
|
48
|
54
|
57
|
49
|
103
|
94
|
90
|
81
|
99
|
35
|
35
|
50
|
70
|
91
|
185
|
67
|
53
|
41
|
51
|
77
|
103
|
105
|
79
|
42
|
||
|
2024/01
|
178
|
62
|
57
|
96
|
66
|
70
|
110
|
84
|
94
|
102
|
123
|
147
|
197
|
127
|
78
|
76
|
91
|
97
|
98
|
42
|
34
|
37
|
44
|
45
|
60
|
55
|
80
|
103
|
127
|
145
|
104
|
|
2023/12
|
46
|
57
|
71
|
85
|
95
|
46
|
65
|
103
|
114
|
120
|
66
|
78
|
88
|
70
|
48
|
61
|
65
|
64
|
70
|
101
|
89
|
81
|
138
|
74
|
115
|
128
|
124
|
187
|
126
|
116
|
237
|
|
2023/11
|
64
|
44
|
25
|
35
|
33
|
47
|
58
|
79
|
53
|
85
|
41
|
24
|
23
|
37
|
30
|
33
|
47
|
64
|
69
|
88
|
71
|
32
|
49
|
83
|
93
|
26
|
52
|
50
|
60
|
51
|
|
|
2023/10
|
26
|
21
|
18
|
20
|
16
|
14
|
19
|
22
|
15
|
24
|
30
|
18
|
16
|
22
|
37
|
53
|
77
|
30
|
16
|
23
|
37
|
54
|
71
|
76
|
55
|
27
|
21
|
33
|
55
|
68
|
54
|
|
2023/09
|
21
|
28
|
37
|
49
|
56
|
57
|
53
|
43
|
50
|
28
|
24
|
21
|
29
|
37
|
44
|
44
|
51
|
32
|
28
|
23
|
21
|
25
|
18
|
16
|
15
|
26
|
31
|
29
|
22
|
31
|
|
|
2023/08
|
27
|
26
|
26
|
21
|
24
|
22
|
26
|
28
|
27
|
24
|
27
|
23
|
26
|
32
|
31
|
34
|
38
|
36
|
44
|
27
|
25
|
34
|
35
|
21
|
21
|
20
|
25
|
30
|
29
|
22
|
24
|
|
2023/07
|
38
|
39
|
43
|
27
|
36
|
41
|
43
|
49
|
68
|
63
|
49
|
19
|
17
|
31
|
36
|
33
|
45
|
49
|
55
|
46
|
43
|
41
|
48
|
28
|
26
|
19
|
17
|
19
|
26
|
32
|
28
|
|
2023/06
|
24
|
29
|
19
|
19
|
23
|
26
|
32
|
27
|
26
|
30
|
31
|
43
|
35
|
27
|
28
|
44
|
39
|
30
|
26
|
30
|
28
|
31
|
47
|
54
|
55
|
67
|
65
|
45
|
38
|
29
|
|
|
2023/05
|
58
|
63
|
59
|
51
|
50
|
49
|
29
|
21
|
16
|
16
|
20
|
40
|
32
|
36
|
41
|
55
|
52
|
36
|
41
|
61
|
33
|
34
|
37
|
53
|
57
|
29
|
40
|
29
|
35
|
48
|
61
|
|
2023/04
|
53
|
66
|
39
|
35
|
26
|
40
|
72
|
70
|
72
|
75
|
49
|
41
|
39
|
34
|
50
|
58
|
70
|
39
|
47
|
47
|
30
|
18
|
19
|
25
|
29
|
36
|
46
|
51
|
41
|
56
|
|
|
2023/03
|
59
|
60
|
57
|
59
|
61
|
76
|
101
|
61
|
38
|
46
|
56
|
31
|
26
|
49
|
52
|
64
|
61
|
47
|
33
|
39
|
31
|
45
|
37
|
23
|
28
|
31
|
21
|
24
|
26
|
44
|
58
|
|
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
*: primary pollution