Air Quality
Excellent
No health implications.
29
PM2.5
31
PM10
52
O3
0.9
CO
5
SO2
28
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
31 Oct
59
Good
Fri
1 Nov
61
Good
Sat
2 Nov
64
Good
Sun
3 Nov
54
Good
Mon
4 Nov
57
Good
Tue
5 Nov
60
Good
Wed
6 Nov
63
Good
Air quality in the last 12 months (Yanchuan)
|
2024/09
|
40
|
46
|
39
|
43
|
29
|
47
|
26
|
47
|
59
|
39
|
39
|
41
|
45
|
31
|
49
|
42
|
42
|
45
|
43
|
26
|
25
|
46
|
55
|
58
|
59
|
61
|
80
|
63
|
29
|
31
|
|
|
2024/08
|
38
|
48
|
35
|
35
|
35
|
30
|
19
|
34
|
43
|
86
|
34
|
38
|
43
|
43
|
41
|
38
|
41
|
27
|
36
|
35
|
37
|
46
|
52
|
53
|
50
|
18
|
34
|
40
|
47
|
46
|
50
|
|
2024/07
|
39
|
43
|
36
|
31
|
39
|
43
|
48
|
47
|
41
|
41
|
46
|
45
|
51
|
58
|
44
|
24
|
33
|
32
|
38
|
23
|
54
|
59
|
43
|
23
|
49
|
48
|
51
|
54
|
48
|
26
|
36
|
|
2024/06
|
58
|
43
|
43
|
46
|
35
|
53
|
40
|
44
|
49
|
49
|
60
|
57
|
65
|
58
|
55
|
54
|
42
|
44
|
46
|
50
|
43
|
68
|
75
|
91
|
84
|
86
|
64
|
67
|
58
|
44
|
|
|
2024/05
|
44
|
49
|
55
|
35
|
46
|
49
|
49
|
56
|
62
|
73
|
140
|
58
|
53
|
64
|
73
|
62
|
87
|
82
|
61
|
65
|
63
|
63
|
55
|
65
|
52
|
53
|
50
|
50
|
48
|
62
|
58
|
|
2024/04
|
80
|
62
|
55
|
67
|
74
|
68
|
69
|
66
|
64
|
56
|
55
|
61
|
56
|
66
|
92
|
59
|
73
|
74
|
62
|
59
|
67
|
127
|
120
|
83
|
74
|
74
|
68
|
64
|
51
|
40
|
|
|
2024/03
|
55
|
67
|
65
|
77
|
80
|
60
|
89
|
56
|
74
|
80
|
75
|
56
|
74
|
72
|
74
|
139
|
81
|
177
|
86
|
72
|
85
|
140
|
121
|
37
|
53
|
59
|
85
|
104
|
91
|
63
|
72
|
|
2024/02
|
133
|
126
|
120
|
106
|
110
|
101
|
92
|
104
|
132
|
174
|
72
|
72
|
74
|
141
|
74
|
63
|
62
|
370
|
250
|
52
|
51
|
67
|
58
|
82
|
103
|
107
|
92
|
92
|
64
|
||
|
2024/01
|
74
|
74
|
69
|
67
|
66
|
59
|
57
|
80
|
79
|
69
|
79
|
82
|
87
|
80
|
64
|
92
|
92
|
89
|
98
|
68
|
26
|
33
|
51
|
52
|
61
|
70
|
68
|
71
|
75
|
89
|
110
|
|
2023/12
|
55
|
67
|
77
|
82
|
121
|
157
|
108
|
96
|
83
|
84
|
56
|
75
|
67
|
54
|
48
|
46
|
46
|
66
|
68
|
49
|
38
|
56
|
64
|
65
|
71
|
83
|
102
|
124
|
160
|
115
|
67
|
|
2023/11
|
72
|
94
|
82
|
68
|
50
|
53
|
65
|
72
|
66
|
53
|
53
|
45
|
61
|
66
|
85
|
97
|
64
|
65
|
77
|
77
|
91
|
104
|
52
|
57
|
72
|
86
|
86
|
68
|
43
|
45
|
|
|
2023/10
|
53
|
45
|
47
|
59
|
52
|
38
|
49
|
47
|
48
|
54
|
64
|
64
|
62
|
56
|
59
|
62
|
66
|
58
|
54
|
52
|
52
|
61
|
69
|
70
|
77
|
74
|
69
|
73
|
73
|
73
|
74
|
|
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