Air Quality
Excellent
No health implications.
24
PM2.5
24
PM10
27
O3
0.4
CO
21
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jul
54
Good
Wed
16 Jul
56
Good
Thu
17 Jul
59
Good
Fri
18 Jul
33
Excellent
Sat
19 Jul
34
Excellent
Sun
20 Jul
36
Excellent
Mon
21 Jul
28
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