Air Quality
Heavy
Healthy people will commonly show symptoms. People with respiratory or heart diseases will be significantly affected and will experience reduced endurance in activities.
91
PM2.5
363
*
PM10
15
O3
1.2
CO
9
SO2
41
NO2
Healthy people will commonly show symptoms. People with respiratory or heart diseases will be significantly affected and will experience reduced endurance in activities.
Advise
Children, seniors and individuals with heart or lung diseases should stay indoors and avoid outdoor activities. General population should reduce outdoor activities.
Air Quality
Today
26 Jan
126
Light
Tue
27 Jan
97
Good
Wed
28 Jan
94
Good
Thu
29 Jan
94
Good
Fri
30 Jan
87
Good
Sat
31 Jan
20
Excellent
Sun
1 Feb
41
Excellent
Air quality in the last 12 months (Yanchang)
|
2025/11
|
58
|
60
|
69
|
71
|
87
|
75
|
43
|
56
|
97
|
91
|
79
|
66
|
58
|
68
|
74
|
61
|
20
|
31
|
55
|
63
|
65
|
74
|
85
|
121
|
73
|
224
|
217
|
97
|
90
|
95
|
|
|
2025/10
|
52
|
33
|
42
|
35
|
29
|
25
|
26
|
28
|
13
|
12
|
23
|
27
|
37
|
42
|
29
|
39
|
34
|
36
|
45
|
42
|
39
|
43
|
58
|
62
|
41
|
48
|
53
|
59
|
62
|
62
|
57
|
|
2025/09
|
41
|
47
|
17
|
18
|
53
|
46
|
60
|
58
|
55
|
51
|
37
|
23
|
40
|
51
|
57
|
35
|
28
|
22
|
20
|
38
|
25
|
19
|
28
|
35
|
41
|
49
|
32
|
43
|
46
|
54
|
|
|
2025/08
|
43
|
49
|
53
|
39
|
36
|
45
|
45
|
42
|
29
|
32
|
40
|
42
|
42
|
50
|
40
|
22
|
41
|
41
|
40
|
26
|
40
|
41
|
20
|
32
|
42
|
39
|
23
|
24
|
26
|
32
|
36
|
|
2025/07
|
28
|
30
|
26
|
32
|
26
|
35
|
31
|
38
|
45
|
48
|
51
|
56
|
55
|
46
|
51
|
46
|
44
|
52
|
46
|
27
|
34
|
50
|
34
|
32
|
31
|
26
|
29
|
46
|
43
|
40
|
46
|
|
2025/06
|
44
|
40
|
37
|
41
|
49
|
52
|
53
|
42
|
58
|
55
|
56
|
55
|
57
|
41
|
46
|
47
|
45
|
45
|
29
|
35
|
35
|
42
|
44
|
49
|
49
|
35
|
36
|
28
|
44
|
28
|
|
|
2025/05
|
72
|
102
|
44
|
98
|
269
|
226
|
137
|
112
|
60
|
49
|
51
|
61
|
66
|
68
|
63
|
133
|
162
|
80
|
72
|
64
|
70
|
183
|
59
|
59
|
50
|
37
|
43
|
54
|
58
|
55
|
33
|
|
2025/04
|
65
|
64
|
88
|
109
|
66
|
87
|
103
|
114
|
101
|
60
|
178
|
152
|
126
|
51
|
53
|
123
|
122
|
87
|
72
|
76
|
188
|
158
|
86
|
51
|
63
|
60
|
50
|
46
|
66
|
129
|
|
|
2025/03
|
85
|
78
|
34
|
43
|
56
|
62
|
70
|
78
|
71
|
73
|
232
|
203
|
88
|
69
|
46
|
35
|
48
|
45
|
46
|
47
|
61
|
72
|
135
|
338
|
310
|
318
|
207
|
172
|
51
|
53
|
60
|
|
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
|
|
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