Air Quality
Light
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
67
PM2.5
222
*
PM10
11
O3
0.8
CO
13
SO2
48
NO2
Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
Advise
Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
Air Quality
Today
17 Apr
93
Good
Fri
18 Apr
79
Good
Sat
19 Apr
78
Good
Sun
20 Apr
79
Good
Mon
21 Apr
101
Light
Tue
22 Apr
82
Good
Wed
23 Apr
20
Excellent
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