Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
46
PM2.5
113
*
PM10
18
O3
0.9
CO
7
SO2
49
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
18 May
105
Lightly
Sun
19 May
102
Lightly
Mon
20 May
92
Good
Tue
21 May
102
Lightly
Wed
22 May
100
Good
Thu
23 May
106
Lightly
Fri
24 May
106
Lightly
Air quality in the last 12 months (Yanchang)
|
2024/02
|
125
|
119
|
111
|
105
|
108
|
104
|
95
|
106
|
135
|
178
|
72
|
73
|
77
|
137
|
71
|
63
|
64
|
374
|
266
|
50
|
54
|
71
|
58
|
89
|
106
|
104
|
91
|
94
|
64
|
||
|
2024/01
|
77
|
75
|
73
|
69
|
68
|
61
|
60
|
84
|
83
|
73
|
84
|
87
|
93
|
84
|
63
|
86
|
91
|
86
|
89
|
71
|
26
|
34
|
52
|
53
|
60
|
72
|
72
|
72
|
78
|
92
|
111
|
|
2023/12
|
56
|
70
|
81
|
85
|
122
|
155
|
101
|
91
|
84
|
85
|
53
|
75
|
63
|
54
|
53
|
50
|
48
|
69
|
69
|
51
|
38
|
56
|
67
|
67
|
75
|
87
|
105
|
128
|
165
|
117
|
68
|
|
2023/11
|
69
|
91
|
82
|
65
|
50
|
52
|
63
|
72
|
66
|
49
|
52
|
44
|
60
|
66
|
80
|
101
|
63
|
66
|
76
|
76
|
94
|
106
|
55
|
58
|
71
|
85
|
85
|
72
|
47
|
46
|
|
|
2023/10
|
50
|
42
|
44
|
55
|
45
|
36
|
46
|
45
|
48
|
52
|
62
|
62
|
59
|
55
|
57
|
59
|
63
|
55
|
48
|
51
|
52
|
61
|
67
|
67
|
76
|
74
|
69
|
71
|
70
|
71
|
71
|
|
2023/09
|
45
|
47
|
49
|
52
|
53
|
59
|
60
|
67
|
31
|
39
|
42
|
38
|
51
|
51
|
50
|
38
|
34
|
35
|
41
|
47
|
39
|
50
|
46
|
29
|
35
|
44
|
52
|
60
|
55
|
48
|
|
|
2023/08
|
37
|
40
|
41
|
38
|
39
|
42
|
44
|
50
|
48
|
51
|
44
|
35
|
46
|
47
|
52
|
53
|
115
|
76
|
69
|
48
|
44
|
49
|
43
|
34
|
39
|
18
|
24
|
37
|
41
|
47
|
64
|
|
2023/07
|
53
|
50
|
28
|
49
|
66
|
56
|
58
|
49
|
56
|
61
|
58
|
49
|
38
|
46
|
40
|
53
|
55
|
59
|
58
|
50
|
48
|
47
|
49
|
53
|
43
|
45
|
45
|
30
|
40
|
26
|
24
|
|
2023/06
|
44
|
51
|
42
|
40
|
46
|
51
|
58
|
50
|
56
|
57
|
48
|
51
|
58
|
61
|
54
|
55
|
39
|
32
|
41
|
56
|
62
|
63
|
53
|
52
|
59
|
61
|
53
|
35
|
51
|
55
|
|
|
2023/05
|
71
|
63
|
63
|
44
|
62
|
23
|
30
|
49
|
60
|
54
|
56
|
62
|
62
|
76
|
72
|
68
|
68
|
60
|
60
|
111
|
57
|
41
|
50
|
45
|
56
|
65
|
26
|
26
|
27
|
41
|
49
|
|
2023/04
|
62
|
61
|
19
|
28
|
45
|
81
|
72
|
74
|
94
|
205
|
410
|
186
|
128
|
112
|
111
|
148
|
130
|
108
|
155
|
377
|
39
|
19
|
23
|
22
|
47
|
65
|
70
|
234
|
99
|
63
|
|
|
2023/03
|
70
|
67
|
80
|
83
|
78
|
79
|
77
|
116
|
102
|
98
|
228
|
119
|
84
|
106
|
64
|
62
|
50
|
74
|
76
|
69
|
133
|
351
|
278
|
121
|
105
|
81
|
73
|
72
|
68
|
74
|
69
|
|
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