Air Quality
Excellent
No health implications.
4
PM2.5
9
PM10
50
O3
0.5
CO
5
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
38
Excellent
Sun
24 May
42
Excellent
Mon
25 May
46
Excellent
Tue
26 May
44
Excellent
Wed
27 May
35
Excellent
Thu
28 May
35
Excellent
Fri
29 May
27
Excellent
Air quality in the last 12 months (Yanhe)
|
2026/04
|
21
|
20
|
23
|
34
|
37
|
24
|
26
|
18
|
32
|
36
|
27
|
25
|
24
|
21
|
19
|
20
|
26
|
31
|
31
|
25
|
19
|
14
|
19
|
29
|
38
|
41
|
26
|
24
|
29
|
32
|
|
|
2026/03
|
14
|
16
|
22
|
27
|
30
|
37
|
36
|
17
|
19
|
28
|
32
|
42
|
55
|
53
|
28
|
22
|
19
|
18
|
34
|
38
|
31
|
30
|
28
|
20
|
20
|
18
|
23
|
26
|
24
|
19
|
29
|
|
2026/02
|
41
|
51
|
64
|
71
|
73
|
53
|
88
|
63
|
45
|
44
|
49
|
52
|
63
|
64
|
68
|
33
|
57
|
56
|
42
|
53
|
55
|
53
|
27
|
23
|
39
|
18
|
15
|
14
|
|||
|
2026/01
|
21
|
41
|
46
|
44
|
50
|
47
|
56
|
54
|
61
|
89
|
79
|
81
|
85
|
129
|
114
|
122
|
124
|
118
|
55
|
23
|
54
|
56
|
61
|
71
|
44
|
26
|
56
|
62
|
38
|
17
|
32
|
|
2025/12
|
68
|
79
|
65
|
58
|
62
|
57
|
60
|
53
|
58
|
68
|
66
|
108
|
34
|
37
|
45
|
56
|
64
|
59
|
70
|
67
|
43
|
35
|
25
|
40
|
44
|
47
|
57
|
59
|
75
|
87
|
44
|
|
2025/11
|
22
|
24
|
22
|
21
|
22
|
15
|
16
|
14
|
12
|
21
|
28
|
27
|
28
|
32
|
37
|
42
|
40
|
18
|
23
|
30
|
31
|
40
|
37
|
36
|
40
|
41
|
43
|
50
|
53
|
60
|
|
|
2025/10
|
19
|
19
|
22
|
22
|
22
|
23
|
20
|
22
|
23
|
22
|
24
|
36
|
23
|
13
|
17
|
13
|
15
|
13
|
12
|
13
|
14
|
18
|
24
|
28
|
39
|
34
|
24
|
27
|
33
|
29
|
25
|
|
2025/09
|
23
|
20
|
20
|
17
|
22
|
27
|
25
|
24
|
17
|
13
|
16
|
22
|
15
|
17
|
20
|
19
|
20
|
21
|
17
|
14
|
20
|
18
|
16
|
17
|
18
|
14
|
17
|
20
|
28
|
25
|
|
|
2025/08
|
20
|
21
|
23
|
22
|
22
|
21
|
19
|
13
|
16
|
19
|
16
|
14
|
18
|
15
|
12
|
13
|
16
|
18
|
18
|
14
|
14
|
16
|
20
|
19
|
17
|
18
|
18
|
20
|
26
|
27
|
27
|
|
2025/07
|
17
|
17
|
19
|
15
|
15
|
18
|
18
|
22
|
25
|
21
|
21
|
25
|
22
|
18
|
16
|
17
|
17
|
19
|
21
|
22
|
17
|
14
|
12
|
12
|
14
|
16
|
17
|
17
|
18
|
16
|
17
|
|
2025/06
|
15
|
16
|
23
|
22
|
25
|
29
|
31
|
27
|
24
|
22
|
25
|
25
|
24
|
19
|
24
|
22
|
17
|
18
|
14
|
13
|
12
|
14
|
15
|
21
|
14
|
15
|
16
|
16
|
17
|
21
|
|
|
2025/05
|
38
|
52
|
41
|
41
|
31
|
30
|
38
|
21
|
27
|
25
|
31
|
29
|
32
|
51
|
39
|
27
|
35
|
34
|
36
|
36
|
29
|
21
|
30
|
42
|
37
|
28
|
22
|
16
|
24
|
25
|
19
|
|
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