Air Quality
Excellent
No health implications.
9
PM2.5
35
PM10
126
O3
0.5
CO
5
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Apr
77
Good
Tue
29 Apr
84
Good
Wed
30 Apr
131
Light
Thu
1 May
100
Good
Fri
2 May
86
Good
Sat
3 May
76
Good
Sun
4 May
49
Excellent
Air quality in the last 12 months (Yichuan)
|
2025/02
|
125
|
95
|
38
|
53
|
38
|
89
|
55
|
37
|
58
|
72
|
75
|
76
|
73
|
78
|
77
|
77
|
75
|
81
|
74
|
78
|
91
|
78
|
51
|
55
|
70
|
70
|
74
|
75
|
|||
|
2025/01
|
95
|
72
|
73
|
92
|
102
|
57
|
56
|
55
|
54
|
68
|
75
|
72
|
95
|
62
|
44
|
61
|
84
|
95
|
92
|
97
|
100
|
114
|
138
|
129
|
59
|
71
|
38
|
79
|
153
|
107
|
127
|
|
2024/12
|
70
|
68
|
62
|
67
|
57
|
63
|
50
|
55
|
73
|
78
|
78
|
84
|
62
|
58
|
65
|
75
|
84
|
63
|
74
|
79
|
46
|
65
|
88
|
111
|
113
|
75
|
54
|
60
|
75
|
86
|
81
|
|
2024/11
|
69
|
61
|
68
|
56
|
62
|
66
|
80
|
85
|
85
|
105
|
102
|
95
|
55
|
48
|
69
|
67
|
49
|
51
|
44
|
59
|
70
|
86
|
102
|
96
|
50
|
48
|
70
|
52
|
51
|
62
|
|
|
2024/10
|
67
|
53
|
49
|
58
|
63
|
76
|
66
|
62
|
79
|
58
|
64
|
63
|
59
|
75
|
70
|
96
|
65
|
35
|
30
|
24
|
32
|
32
|
50
|
58
|
65
|
63
|
57
|
60
|
68
|
63
|
62
|
|
2024/09
|
47
|
50
|
39
|
42
|
34
|
43
|
30
|
45
|
52
|
45
|
40
|
37
|
46
|
32
|
48
|
41
|
40
|
45
|
38
|
29
|
26
|
46
|
53
|
64
|
74
|
69
|
81
|
62
|
33
|
26
|
|
|
2024/08
|
43
|
48
|
32
|
34
|
33
|
36
|
22
|
33
|
43
|
103
|
42
|
38
|
42
|
41
|
36
|
40
|
42
|
31
|
31
|
34
|
34
|
45
|
50
|
51
|
46
|
17
|
26
|
36
|
43
|
42
|
45
|
|
2024/07
|
33
|
45
|
39
|
37
|
34
|
42
|
44
|
35
|
40
|
47
|
48
|
46
|
52
|
56
|
42
|
26
|
29
|
26
|
37
|
21
|
30
|
41
|
35
|
27
|
57
|
53
|
49
|
54
|
39
|
23
|
39
|
|
2024/06
|
65
|
45
|
50
|
47
|
33
|
51
|
50
|
56
|
58
|
55
|
68
|
66
|
63
|
57
|
59
|
52
|
42
|
41
|
42
|
46
|
39
|
59
|
69
|
98
|
91
|
87
|
67
|
66
|
60
|
50
|
|
|
2024/05
|
44
|
45
|
50
|
39
|
49
|
47
|
55
|
58
|
62
|
58
|
130
|
65
|
62
|
64
|
77
|
59
|
80
|
76
|
57
|
62
|
63
|
62
|
57
|
65
|
63
|
57
|
55
|
52
|
46
|
60
|
70
|
|
2024/04
|
70
|
57
|
52
|
66
|
70
|
73
|
76
|
67
|
62
|
59
|
55
|
56
|
53
|
54
|
88
|
69
|
76
|
73
|
67
|
75
|
82
|
100
|
170
|
91
|
77
|
69
|
67
|
63
|
56
|
41
|
|
|
2024/03
|
52
|
64
|
67
|
72
|
100
|
66
|
88
|
61
|
77
|
84
|
76
|
64
|
81
|
74
|
71
|
159
|
94
|
131
|
112
|
84
|
83
|
126
|
111
|
36
|
46
|
63
|
76
|
82
|
87
|
72
|
76
|
|
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