Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
17
PM2.5
64
PM10
194
O3
0.5
CO
11
SO2
11
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
31 May
116
Light
Mon
1 Jun
125
Light
Tue
2 Jun
125
Light
Wed
3 Jun
99
Good
Thu
4 Jun
85
Good
Fri
5 Jun
75
Good
Sat
6 Jun
34
Excellent
Air quality in the last 12 months (Yanshan)
|
2026/04
|
98
|
79
|
86
|
59
|
64
|
43
|
37
|
54
|
66
|
69
|
62
|
75
|
68
|
71
|
88
|
75
|
86
|
91
|
76
|
85
|
65
|
41
|
58
|
52
|
50
|
53
|
53
|
37
|
46
|
51
|
|
|
2026/03
|
81
|
111
|
134
|
124
|
69
|
67
|
53
|
124
|
81
|
114
|
146
|
82
|
119
|
93
|
47
|
84
|
148
|
56
|
55
|
86
|
96
|
112
|
123
|
108
|
124
|
110
|
81
|
86
|
102
|
39
|
53
|
|
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
|
|
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