Air Quality
Excellent
No health implications.
3
PM2.5
23
PM10
31
O3
0.3
CO
7
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 Jul
47
Excellent
Thu
2 Jul
57
Good
Fri
3 Jul
65
Good
Sat
4 Jul
46
Excellent
Sun
5 Jul
36
Excellent
Mon
6 Jul
48
Excellent
Tue
7 Jul
42
Excellent
Air quality in the last 12 months (Yanshan)
|
2026/05
|
37
|
50
|
27
|
38
|
40
|
47
|
50
|
28
|
35
|
44
|
35
|
50
|
44
|
26
|
36
|
30
|
22
|
20
|
17
|
22
|
17
|
18
|
26
|
30
|
28
|
33
|
38
|
33
|
34
|
40
|
35
|
|
2026/04
|
37
|
49
|
43
|
38
|
63
|
86
|
24
|
48
|
56
|
61
|
69
|
44
|
34
|
28
|
26
|
33
|
26
|
39
|
52
|
45
|
21
|
21
|
25
|
35
|
47
|
53
|
52
|
27
|
28
|
31
|
|
|
2026/03
|
19
|
18
|
24
|
32
|
39
|
39
|
64
|
38
|
18
|
41
|
44
|
47
|
62
|
74
|
108
|
112
|
93
|
61
|
38
|
36
|
25
|
45
|
36
|
30
|
34
|
58
|
37
|
33
|
36
|
42
|
29
|
|
2026/02
|
52
|
53
|
74
|
122
|
132
|
79
|
52
|
38
|
59
|
46
|
27
|
38
|
45
|
60
|
54
|
37
|
37
|
54
|
71
|
40
|
71
|
91
|
82
|
51
|
40
|
61
|
18
|
20
|
|||
|
2026/01
|
30
|
21
|
39
|
60
|
20
|
41
|
45
|
48
|
52
|
55
|
60
|
80
|
93
|
92
|
93
|
108
|
93
|
81
|
59
|
11
|
22
|
26
|
40
|
57
|
93
|
49
|
36
|
60
|
65
|
42
|
23
|
|
2025/12
|
65
|
69
|
90
|
72
|
65
|
78
|
92
|
72
|
76
|
100
|
86
|
67
|
26
|
41
|
49
|
56
|
55
|
66
|
65
|
65
|
73
|
92
|
81
|
15
|
44
|
55
|
55
|
59
|
65
|
62
|
84
|
|
2025/11
|
35
|
26
|
12
|
11
|
16
|
30
|
33
|
10
|
8
|
10
|
12
|
46
|
28
|
37
|
46
|
52
|
59
|
25
|
26
|
29
|
31
|
42
|
56
|
57
|
50
|
50
|
60
|
71
|
64
|
61
|
|
|
2025/10
|
31
|
28
|
26
|
25
|
23
|
12
|
16
|
29
|
31
|
32
|
38
|
47
|
37
|
44
|
35
|
29
|
44
|
20
|
9
|
8
|
11
|
14
|
26
|
33
|
41
|
55
|
44
|
48
|
56
|
61
|
49
|
|
2025/09
|
25
|
22
|
20
|
23
|
23
|
26
|
30
|
26
|
8
|
14
|
17
|
14
|
26
|
27
|
24
|
24
|
17
|
23
|
35
|
21
|
11
|
10
|
15
|
9
|
7
|
9
|
15
|
27
|
30
|
28
|
|
|
2025/08
|
23
|
18
|
16
|
19
|
20
|
9
|
11
|
18
|
29
|
24
|
28
|
32
|
34
|
29
|
8
|
19
|
10
|
12
|
9
|
18
|
19
|
16
|
20
|
24
|
18
|
18
|
22
|
19
|
24
|
13
|
22
|
|
2025/07
|
12
|
10
|
13
|
18
|
24
|
23
|
26
|
24
|
27
|
20
|
17
|
26
|
18
|
17
|
18
|
18
|
21
|
25
|
24
|
20
|
11
|
8
|
10
|
18
|
21
|
25
|
24
|
19
|
27
|
26
|
18
|
|
2025/06
|
19
|
14
|
22
|
40
|
40
|
30
|
23
|
19
|
10
|
15
|
26
|
18
|
17
|
10
|
15
|
17
|
10
|
7
|
10
|
14
|
11
|
12
|
15
|
15
|
18
|
17
|
14
|
12
|
9
|
12
|
|
|
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