Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
37
*
PM2.5
53
PM10
76
O3
0.7
CO
3
SO2
22
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
30 Apr
47
Excellent
Wed
1 May
69
Good
Thu
2 May
76
Good
Fri
3 May
81
Good
Sat
4 May
52
Good
Sun
5 May
58
Good
Mon
6 May
56
Good
Air quality in the last 12 months (Yi'an)
|
2024/02
|
25
|
28
|
31
|
47
|
71
|
97
|
89
|
120
|
138
|
106
|
103
|
73
|
55
|
53
|
57
|
39
|
47
|
49
|
71
|
18
|
19
|
39
|
52
|
60
|
70
|
94
|
78
|
66
|
49
|
||
|
2024/01
|
172
|
122
|
85
|
61
|
60
|
118
|
130
|
78
|
114
|
182
|
115
|
74
|
83
|
153
|
66
|
59
|
58
|
27
|
26
|
72
|
88
|
52
|
31
|
44
|
54
|
72
|
85
|
84
|
101
|
108
|
71
|
|
2023/12
|
40
|
60
|
72
|
88
|
76
|
93
|
74
|
64
|
66
|
81
|
22
|
54
|
59
|
64
|
29
|
52
|
34
|
45
|
74
|
80
|
54
|
52
|
49
|
67
|
69
|
73
|
114
|
231
|
185
|
172
|
127
|
|
2023/11
|
52
|
48
|
56
|
118
|
94
|
35
|
37
|
44
|
51
|
36
|
29
|
48
|
59
|
55
|
65
|
83
|
78
|
48
|
52
|
56
|
52
|
47
|
78
|
45
|
60
|
74
|
84
|
81
|
78
|
48
|
|
|
2023/10
|
43
|
30
|
24
|
32
|
41
|
34
|
20
|
24
|
38
|
51
|
73
|
53
|
52
|
55
|
58
|
64
|
61
|
56
|
71
|
28
|
35
|
46
|
51
|
54
|
66
|
78
|
101
|
91
|
66
|
74
|
66
|
|
2023/09
|
35
|
43
|
49
|
41
|
31
|
35
|
36
|
41
|
46
|
54
|
68
|
44
|
19
|
21
|
34
|
33
|
36
|
39
|
38
|
23
|
24
|
20
|
20
|
32
|
54
|
48
|
58
|
70
|
67
|
35
|
|
|
2023/08
|
24
|
25
|
30
|
36
|
42
|
36
|
35
|
36
|
40
|
50
|
62
|
46
|
42
|
35
|
41
|
46
|
43
|
50
|
37
|
36
|
34
|
30
|
43
|
56
|
63
|
44
|
24
|
21
|
30
|
29
|
31
|
|
2023/07
|
34
|
27
|
23
|
24
|
32
|
27
|
27
|
27
|
19
|
28
|
30
|
29
|
30
|
39
|
43
|
34
|
34
|
37
|
31
|
22
|
27
|
17
|
22
|
30
|
33
|
29
|
29
|
16
|
13
|
17
|
22
|
|
2023/06
|
54
|
60
|
64
|
58
|
40
|
33
|
38
|
37
|
54
|
49
|
58
|
52
|
50
|
67
|
62
|
49
|
35
|
30
|
21
|
31
|
53
|
49
|
32
|
17
|
22
|
26
|
24
|
21
|
25
|
21
|
|
|
2023/05
|
59
|
48
|
42
|
35
|
25
|
42
|
37
|
36
|
46
|
46
|
42
|
53
|
50
|
55
|
52
|
45
|
26
|
34
|
33
|
54
|
87
|
131
|
82
|
42
|
42
|
51
|
19
|
32
|
43
|
53
|
46
|
|
2023/04
|
53
|
57
|
37
|
25
|
26
|
33
|
57
|
49
|
49
|
55
|
104
|
301
|
107
|
62
|
97
|
78
|
69
|
55
|
61
|
37
|
46
|
60
|
38
|
35
|
48
|
48
|
39
|
43
|
90
|
74
|
|
|
2023/03
|
79
|
88
|
66
|
75
|
70
|
59
|
58
|
62
|
65
|
60
|
54
|
86
|
60
|
59
|
74
|
92
|
27
|
39
|
50
|
43
|
27
|
21
|
37
|
95
|
42
|
63
|
82
|
71
|
57
|
43
|
36
|
|
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