Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
25
PM2.5
69
*
PM10
16
O3
0.8
CO
5
SO2
52
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
12 May
79
Good
Tue
13 May
85
Good
Wed
14 May
83
Good
Thu
15 May
81
Good
Fri
16 May
83
Good
Sat
17 May
88
Good
Sun
18 May
42
Excellent
Yanchang Air quality rank
Air quality in the last 12 months (Yanchang)
|
2025/02
|
88
|
69
|
37
|
58
|
37
|
112
|
48
|
37
|
54
|
68
|
71
|
72
|
69
|
73
|
72
|
75
|
73
|
76
|
69
|
67
|
77
|
57
|
48
|
53
|
66
|
71
|
69
|
68
|
|||
|
2025/01
|
77
|
65
|
68
|
81
|
103
|
56
|
53
|
51
|
54
|
62
|
71
|
68
|
95
|
53
|
47
|
57
|
69
|
78
|
75
|
78
|
78
|
91
|
122
|
141
|
69
|
69
|
37
|
73
|
145
|
85
|
87
|
|
2024/12
|
64
|
62
|
62
|
59
|
53
|
56
|
48
|
53
|
69
|
67
|
62
|
67
|
61
|
56
|
61
|
66
|
71
|
59
|
75
|
70
|
46
|
63
|
77
|
97
|
92
|
60
|
51
|
60
|
68
|
81
|
78
|
|
2024/11
|
56
|
48
|
55
|
52
|
56
|
61
|
79
|
86
|
96
|
94
|
93
|
77
|
51
|
46
|
71
|
67
|
53
|
55
|
44
|
58
|
64
|
78
|
106
|
89
|
54
|
55
|
72
|
48
|
51
|
60
|
|
|
2024/10
|
68
|
48
|
44
|
57
|
60
|
65
|
52
|
52
|
63
|
50
|
58
|
60
|
57
|
64
|
62
|
88
|
66
|
31
|
32
|
26
|
29
|
33
|
48
|
56
|
65
|
56
|
57
|
56
|
63
|
57
|
51
|
|
2024/09
|
40
|
51
|
38
|
41
|
32
|
46
|
25
|
46
|
59
|
39
|
38
|
40
|
44
|
29
|
49
|
41
|
40
|
43
|
40
|
25
|
25
|
45
|
54
|
59
|
61
|
63
|
81
|
62
|
30
|
30
|
|
|
2024/08
|
38
|
48
|
32
|
33
|
32
|
32
|
20
|
34
|
44
|
95
|
38
|
37
|
42
|
42
|
37
|
38
|
41
|
26
|
31
|
32
|
34
|
45
|
50
|
51
|
48
|
16
|
31
|
38
|
45
|
45
|
48
|
|
2024/07
|
36
|
42
|
36
|
31
|
36
|
42
|
48
|
44
|
40
|
43
|
45
|
44
|
50
|
58
|
42
|
23
|
30
|
28
|
38
|
22
|
40
|
51
|
36
|
21
|
49
|
48
|
50
|
53
|
45
|
26
|
37
|
|
2024/06
|
60
|
42
|
43
|
43
|
32
|
52
|
40
|
45
|
49
|
48
|
58
|
58
|
62
|
58
|
56
|
52
|
42
|
42
|
43
|
48
|
41
|
62
|
71
|
89
|
87
|
88
|
66
|
67
|
59
|
45
|
|
|
2024/05
|
45
|
47
|
55
|
36
|
43
|
49
|
51
|
56
|
62
|
67
|
131
|
60
|
55
|
63
|
76
|
59
|
84
|
79
|
61
|
64
|
63
|
63
|
55
|
66
|
54
|
55
|
52
|
50
|
48
|
61
|
60
|
|
2024/04
|
78
|
56
|
52
|
67
|
76
|
68
|
71
|
66
|
62
|
56
|
54
|
57
|
53
|
62
|
88
|
60
|
74
|
75
|
67
|
70
|
71
|
121
|
136
|
88
|
72
|
71
|
68
|
63
|
54
|
41
|
|
|
2024/03
|
54
|
65
|
66
|
77
|
81
|
61
|
92
|
59
|
76
|
79
|
73
|
58
|
76
|
69
|
74
|
139
|
82
|
173
|
95
|
77
|
84
|
135
|
124
|
35
|
50
|
59
|
83
|
90
|
91
|
67
|
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