Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
25
PM2.5
113
*
PM10
80
O3
0.6
CO
11
SO2
18
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
15 May
99
Good
Thu
16 May
109
Lightly
Fri
17 May
123
Lightly
Sat
18 May
122
Lightly
Sun
19 May
113
Lightly
Mon
20 May
97
Good
Air quality in the last 12 months (Yichuan)
|
2024/02
|
122
|
115
|
108
|
99
|
112
|
125
|
117
|
129
|
149
|
201
|
76
|
79
|
90
|
115
|
69
|
64
|
66
|
350
|
271
|
43
|
53
|
65
|
56
|
93
|
109
|
99
|
88
|
94
|
71
|
||
|
2024/01
|
85
|
88
|
79
|
81
|
82
|
69
|
65
|
96
|
100
|
76
|
94
|
116
|
130
|
102
|
69
|
82
|
95
|
96
|
80
|
81
|
29
|
29
|
54
|
55
|
60
|
72
|
80
|
82
|
88
|
105
|
134
|
|
2023/12
|
60
|
80
|
98
|
109
|
131
|
164
|
107
|
99
|
94
|
78
|
55
|
80
|
56
|
50
|
55
|
53
|
49
|
74
|
78
|
52
|
40
|
56
|
75
|
69
|
81
|
103
|
120
|
162
|
211
|
166
|
79
|
|
2023/11
|
79
|
90
|
84
|
64
|
50
|
55
|
66
|
79
|
73
|
53
|
54
|
49
|
61
|
76
|
82
|
108
|
68
|
76
|
91
|
86
|
122
|
114
|
64
|
61
|
69
|
92
|
95
|
76
|
55
|
44
|
|
|
2023/10
|
51
|
37
|
49
|
59
|
47
|
36
|
49
|
56
|
54
|
56
|
65
|
70
|
69
|
59
|
63
|
67
|
70
|
56
|
47
|
56
|
60
|
73
|
80
|
85
|
99
|
92
|
80
|
85
|
83
|
82
|
86
|
|
2023/09
|
48
|
48
|
50
|
51
|
52
|
60
|
60
|
63
|
41
|
42
|
46
|
37
|
50
|
49
|
50
|
43
|
37
|
38
|
41
|
47
|
43
|
49
|
42
|
28
|
41
|
46
|
51
|
60
|
53
|
51
|
|
|
2023/08
|
33
|
37
|
40
|
41
|
39
|
38
|
41
|
48
|
49
|
53
|
48
|
33
|
46
|
47
|
51
|
52
|
115
|
85
|
71
|
45
|
41
|
51
|
46
|
35
|
41
|
21
|
23
|
37
|
44
|
49
|
56
|
|
2023/07
|
53
|
49
|
28
|
46
|
68
|
67
|
65
|
57
|
70
|
62
|
56
|
45
|
38
|
50
|
44
|
56
|
57
|
57
|
58
|
51
|
52
|
53
|
55
|
54
|
43
|
43
|
44
|
31
|
45
|
28
|
26
|
|
2023/06
|
45
|
50
|
41
|
39
|
48
|
55
|
63
|
54
|
60
|
59
|
58
|
57
|
63
|
62
|
55
|
53
|
38
|
33
|
44
|
62
|
69
|
63
|
54
|
53
|
67
|
62
|
53
|
37
|
53
|
57
|
|
|
2023/05
|
73
|
66
|
60
|
45
|
68
|
25
|
32
|
50
|
59
|
58
|
58
|
64
|
66
|
73
|
71
|
65
|
69
|
62
|
56
|
106
|
56
|
42
|
52
|
46
|
54
|
63
|
30
|
27
|
27
|
38
|
47
|
|
2023/04
|
65
|
63
|
19
|
27
|
48
|
100
|
91
|
80
|
90
|
174
|
441
|
197
|
139
|
102
|
105
|
135
|
117
|
103
|
140
|
470
|
45
|
19
|
22
|
24
|
51
|
64
|
68
|
231
|
116
|
72
|
|
|
2023/03
|
73
|
75
|
90
|
90
|
87
|
90
|
92
|
115
|
108
|
92
|
249
|
130
|
93
|
107
|
71
|
61
|
48
|
74
|
72
|
68
|
113
|
266
|
238
|
150
|
113
|
89
|
81
|
76
|
72
|
77
|
73
|
|
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