Air Quality
Excellent
No health implications.
9
PM2.5
17
PM10
64
O3
0.4
CO
3
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Apr
43
Excellent
Fri
26 Apr
56
Good
Sat
27 Apr
52
Good
Sun
28 Apr
50
Excellent
Mon
29 Apr
42
Excellent
Tue
30 Apr
39
Excellent
Wed
1 May
41
Excellent
Air quality in the last 12 months (Yanhe)
|
2024/02
|
35
|
19
|
24
|
28
|
33
|
35
|
50
|
60
|
87
|
154
|
72
|
56
|
59
|
68
|
68
|
31
|
40
|
50
|
58
|
38
|
20
|
26
|
29
|
27
|
32
|
47
|
58
|
60
|
69
|
||
|
2024/01
|
60
|
57
|
47
|
59
|
78
|
90
|
70
|
78
|
74
|
64
|
64
|
70
|
84
|
86
|
91
|
48
|
36
|
25
|
20
|
26
|
45
|
45
|
50
|
58
|
62
|
50
|
56
|
64
|
69
|
69
|
59
|
|
2023/12
|
41
|
35
|
39
|
40
|
51
|
54
|
53
|
58
|
88
|
70
|
40
|
25
|
23
|
36
|
33
|
27
|
32
|
32
|
44
|
48
|
65
|
75
|
69
|
68
|
70
|
81
|
89
|
85
|
119
|
99
|
85
|
|
2023/11
|
31
|
35
|
41
|
39
|
36
|
30
|
24
|
29
|
29
|
23
|
15
|
23
|
29
|
33
|
28
|
33
|
40
|
48
|
52
|
43
|
40
|
56
|
64
|
55
|
57
|
55
|
43
|
48
|
52
|
47
|
|
|
2023/10
|
19
|
17
|
15
|
18
|
18
|
18
|
18
|
21
|
27
|
31
|
32
|
41
|
35
|
28
|
32
|
33
|
40
|
43
|
47
|
24
|
28
|
36
|
41
|
47
|
32
|
26
|
20
|
24
|
28
|
27
|
26
|
|
2023/09
|
35
|
38
|
39
|
33
|
31
|
31
|
31
|
32
|
31
|
29
|
36
|
25
|
24
|
32
|
35
|
36
|
31
|
25
|
25
|
27
|
21
|
16
|
14
|
15
|
18
|
20
|
25
|
30
|
32
|
25
|
|
|
2023/08
|
22
|
16
|
19
|
21
|
22
|
21
|
22
|
21
|
21
|
24
|
29
|
31
|
25
|
22
|
27
|
24
|
22
|
28
|
31
|
36
|
30
|
31
|
31
|
29
|
27
|
28
|
18
|
21
|
23
|
28
|
33
|
|
2023/07
|
26
|
27
|
25
|
22
|
21
|
20
|
20
|
20
|
16
|
18
|
24
|
26
|
30
|
23
|
29
|
32
|
34
|
32
|
23
|
19
|
16
|
20
|
23
|
26
|
17
|
17
|
22
|
23
|
21
|
23
|
21
|
|
2023/06
|
22
|
25
|
34
|
34
|
24
|
21
|
20
|
25
|
31
|
34
|
35
|
30
|
27
|
23
|
22
|
21
|
17
|
20
|
21
|
31
|
21
|
22
|
19
|
23
|
27
|
27
|
22
|
19
|
20
|
28
|
|
|
2023/05
|
43
|
43
|
38
|
38
|
32
|
20
|
23
|
34
|
33
|
24
|
25
|
30
|
39
|
46
|
49
|
35
|
35
|
39
|
39
|
26
|
20
|
22
|
24
|
29
|
31
|
27
|
27
|
30
|
27
|
26
|
22
|
|
2023/04
|
36
|
48
|
46
|
36
|
24
|
23
|
33
|
64
|
67
|
61
|
53
|
61
|
61
|
51
|
48
|
47
|
53
|
38
|
26
|
38
|
36
|
24
|
18
|
18
|
24
|
28
|
29
|
31
|
55
|
54
|
|
|
2023/03
|
83
|
69
|
61
|
47
|
47
|
55
|
55
|
39
|
40
|
36
|
41
|
48
|
30
|
37
|
50
|
72
|
33
|
23
|
20
|
18
|
19
|
20
|
24
|
18
|
28
|
36
|
39
|
37
|
35
|
32
|
33
|
|
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