Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
65
*
PM2.5
97
PM10
54
O3
0.6
CO
12
SO2
40
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
31 Mar
82
Good
Wed
1 Apr
71
Good
Thu
2 Apr
99
Good
Fri
3 Apr
85
Good
Sat
4 Apr
72
Good
Sun
5 Apr
70
Good
Mon
6 Apr
47
Excellent
Air quality in the last 12 months (Yanshan)
|
2026/02
|
218
|
96
|
103
|
163
|
137
|
49
|
50
|
59
|
76
|
98
|
89
|
113
|
126
|
145
|
51
|
79
|
163
|
72
|
68
|
71
|
173
|
71
|
61
|
82
|
75
|
71
|
59
|
63
|
|||
|
2026/01
|
48
|
49
|
134
|
217
|
111
|
186
|
42
|
61
|
100
|
50
|
36
|
76
|
64
|
94
|
149
|
75
|
35
|
37
|
40
|
35
|
55
|
88
|
103
|
154
|
73
|
55
|
96
|
107
|
57
|
58
|
108
|
|
2025/12
|
65
|
32
|
46
|
56
|
64
|
133
|
123
|
39
|
104
|
157
|
69
|
24
|
60
|
92
|
98
|
132
|
81
|
128
|
223
|
62
|
39
|
60
|
67
|
53
|
27
|
58
|
99
|
156
|
119
|
85
|
31
|
|
2025/11
|
93
|
29
|
50
|
90
|
99
|
97
|
73
|
86
|
70
|
74
|
90
|
130
|
46
|
79
|
175
|
100
|
35
|
48
|
60
|
51
|
69
|
108
|
117
|
135
|
30
|
102
|
52
|
103
|
151
|
152
|
|
|
2025/10
|
75
|
29
|
20
|
36
|
22
|
23
|
38
|
30
|
12
|
19
|
25
|
29
|
35
|
48
|
68
|
48
|
39
|
25
|
35
|
33
|
45
|
53
|
64
|
69
|
85
|
65
|
59
|
147
|
114
|
102
|
65
|
|
2025/09
|
26
|
32
|
52
|
50
|
45
|
43
|
54
|
57
|
40
|
47
|
58
|
53
|
57
|
63
|
66
|
55
|
29
|
33
|
24
|
33
|
45
|
28
|
38
|
49
|
55
|
48
|
38
|
52
|
62
|
66
|
|
|
2025/08
|
31
|
27
|
37
|
30
|
35
|
34
|
36
|
30
|
23
|
31
|
38
|
38
|
40
|
60
|
40
|
11
|
16
|
22
|
37
|
34
|
26
|
23
|
29
|
22
|
29
|
32
|
39
|
14
|
25
|
20
|
21
|
|
2025/07
|
24
|
28
|
20
|
36
|
36
|
23
|
25
|
29
|
31
|
51
|
47
|
47
|
41
|
24
|
32
|
31
|
34
|
33
|
28
|
45
|
39
|
27
|
15
|
29
|
38
|
33
|
28
|
36
|
26
|
28
|
26
|
|
2025/06
|
60
|
54
|
37
|
32
|
57
|
69
|
67
|
53
|
67
|
34
|
54
|
69
|
67
|
57
|
31
|
25
|
43
|
44
|
29
|
36
|
44
|
49
|
43
|
49
|
57
|
53
|
53
|
64
|
50
|
26
|
|
|
2025/05
|
55
|
60
|
41
|
45
|
62
|
44
|
58
|
68
|
37
|
30
|
52
|
55
|
57
|
54
|
35
|
71
|
64
|
63
|
83
|
70
|
60
|
73
|
61
|
50
|
48
|
56
|
53
|
60
|
61
|
56
|
58
|
|
2025/04
|
67
|
31
|
52
|
78
|
40
|
68
|
87
|
76
|
51
|
72
|
81
|
167
|
55
|
59
|
51
|
78
|
87
|
56
|
37
|
67
|
66
|
77
|
70
|
50
|
64
|
70
|
51
|
54
|
62
|
73
|
|
|
2025/03
|
149
|
73
|
49
|
52
|
78
|
77
|
80
|
110
|
118
|
104
|
108
|
140
|
96
|
64
|
46
|
36
|
48
|
31
|
56
|
58
|
57
|
66
|
101
|
106
|
69
|
98
|
87
|
51
|
39
|
57
|
76
|
|
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