Air Quality
Excellent
No health implications.
4
PM2.5
12
PM10
25
O3
0.3
CO
4
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Jul
34
Excellent
Thu
24 Jul
37
Excellent
Fri
25 Jul
53
Good
Sat
26 Jul
63
Good
Sun
27 Jul
65
Good
Mon
28 Jul
78
Good
Tue
29 Jul
19
Excellent
Yanshan Air quality rank
Air quality in the last 12 months (Yanshan)
|
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
|
|
|
2025/05
|
41
|
55
|
42
|
23
|
25
|
27
|
30
|
23
|
18
|
38
|
28
|
32
|
38
|
56
|
38
|
13
|
15
|
8
|
8
|
13
|
15
|
16
|
15
|
38
|
43
|
29
|
27
|
21
|
12
|
20
|
21
|
|
2025/04
|
41
|
54
|
70
|
120
|
132
|
75
|
101
|
124
|
123
|
72
|
48
|
144
|
334
|
141
|
84
|
81
|
83
|
79
|
56
|
21
|
33
|
24
|
43
|
21
|
15
|
25
|
21
|
25
|
43
|
46
|
|
|
2025/03
|
42
|
39
|
55
|
13
|
14
|
21
|
43
|
43
|
32
|
16
|
34
|
45
|
24
|
15
|
10
|
38
|
33
|
29
|
43
|
49
|
52
|
70
|
79
|
85
|
86
|
66
|
62
|
69
|
11
|
15
|
22
|
|
2025/02
|
13
|
14
|
29
|
59
|
58
|
42
|
29
|
68
|
35
|
52
|
112
|
91
|
74
|
96
|
70
|
26
|
30
|
33
|
19
|
11
|
22
|
14
|
19
|
69
|
69
|
49
|
28
|
46
|
|||
|
2025/01
|
93
|
96
|
86
|
109
|
131
|
96
|
77
|
82
|
49
|
49
|
53
|
69
|
86
|
73
|
63
|
61
|
68
|
81
|
86
|
84
|
95
|
104
|
98
|
130
|
109
|
20
|
49
|
55
|
94
|
90
|
46
|
|
2024/12
|
70
|
71
|
68
|
76
|
82
|
22
|
18
|
47
|
93
|
42
|
18
|
54
|
45
|
57
|
35
|
47
|
75
|
51
|
81
|
97
|
89
|
98
|
102
|
97
|
107
|
94
|
83
|
90
|
99
|
128
|
114
|
|
2024/11
|
39
|
70
|
86
|
69
|
60
|
67
|
46
|
43
|
45
|
58
|
61
|
53
|
66
|
60
|
45
|
38
|
31
|
14
|
12
|
14
|
26
|
37
|
33
|
50
|
46
|
20
|
27
|
36
|
40
|
59
|
|
|
2024/10
|
30
|
39
|
53
|
43
|
44
|
45
|
56
|
35
|
42
|
42
|
51
|
52
|
54
|
85
|
28
|
27
|
39
|
36
|
13
|
12
|
22
|
19
|
21
|
25
|
31
|
40
|
20
|
35
|
42
|
44
|
45
|
|
2024/09
|
21
|
16
|
16
|
22
|
40
|
30
|
10
|
11
|
16
|
15
|
22
|
33
|
30
|
32
|
35
|
24
|
29
|
31
|
40
|
31
|
24
|
25
|
30
|
38
|
50
|
37
|
29
|
34
|
35
|
33
|
|
|
2024/08
|
9
|
12
|
15
|
18
|
19
|
18
|
18
|
17
|
20
|
19
|
11
|
11
|
9
|
13
|
27
|
22
|
14
|
23
|
32
|
12
|
12
|
11
|
11
|
16
|
17
|
19
|
28
|
28
|
31
|
28
|
24
|
|
2024/07
|
13
|
16
|
15
|
16
|
14
|
11
|
14
|
16
|
16
|
19
|
17
|
18
|
23
|
13
|
11
|
13
|
10
|
10
|
9
|
14
|
16
|
12
|
11
|
16
|
21
|
28
|
34
|
9
|
11
|
8
|
8
|
|
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