Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
49
PM2.5
100
*
PM10
3
O3
0.6
CO
5
SO2
59
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
26 Nov
70
Good
Thu
27 Nov
51
Good
Fri
28 Nov
82
Good
Sat
29 Nov
78
Good
Sun
30 Nov
40
Excellent
Mon
1 Dec
38
Excellent
Tue
2 Dec
39
Excellent
Air quality in the last 12 months (Tongzhou)
|
2025/10
|
49
|
56
|
47
|
57
|
55
|
23
|
51
|
26
|
9
|
13
|
21
|
42
|
54
|
51
|
82
|
71
|
35
|
10
|
16
|
19
|
32
|
58
|
66
|
99
|
138
|
35
|
40
|
128
|
180
|
152
|
61
|
|
2025/09
|
26
|
45
|
47
|
66
|
56
|
26
|
40
|
31
|
57
|
40
|
59
|
73
|
53
|
37
|
31
|
23
|
18
|
29
|
40
|
44
|
57
|
36
|
50
|
63
|
50
|
55
|
57
|
43
|
41
|
42
|
|
|
2025/08
|
56
|
58
|
28
|
35
|
30
|
45
|
24
|
38
|
13
|
33
|
39
|
51
|
20
|
33
|
43
|
22
|
39
|
37
|
27
|
28
|
28
|
26
|
26
|
15
|
35
|
33
|
25
|
15
|
45
|
33
|
26
|
|
2025/07
|
38
|
39
|
24
|
42
|
32
|
13
|
37
|
35
|
51
|
28
|
52
|
61
|
19
|
44
|
48
|
32
|
21
|
43
|
52
|
22
|
32
|
58
|
37
|
24
|
31
|
45
|
43
|
26
|
12
|
21
|
45
|
|
2025/06
|
60
|
25
|
16
|
33
|
55
|
36
|
34
|
49
|
47
|
35
|
58
|
72
|
63
|
53
|
20
|
20
|
49
|
63
|
41
|
24
|
20
|
43
|
61
|
72
|
61
|
60
|
61
|
52
|
77
|
55
|
|
|
2025/05
|
39
|
49
|
29
|
54
|
59
|
17
|
85
|
98
|
33
|
43
|
64
|
89
|
91
|
32
|
44
|
80
|
52
|
54
|
63
|
105
|
77
|
72
|
52
|
35
|
58
|
63
|
49
|
67
|
64
|
72
|
81
|
|
2025/04
|
50
|
22
|
62
|
77
|
24
|
76
|
60
|
37
|
58
|
89
|
123
|
147
|
88
|
56
|
56
|
96
|
62
|
27
|
42
|
70
|
96
|
28
|
61
|
37
|
59
|
103
|
38
|
70
|
69
|
65
|
|
|
2025/03
|
236
|
75
|
35
|
50
|
85
|
18
|
77
|
115
|
162
|
133
|
194
|
71
|
105
|
69
|
50
|
20
|
34
|
35
|
47
|
36
|
33
|
49
|
107
|
89
|
65
|
81
|
54
|
34
|
29
|
48
|
68
|
|
2025/02
|
66
|
53
|
10
|
16
|
25
|
67
|
38
|
16
|
16
|
80
|
143
|
30
|
75
|
66
|
110
|
30
|
18
|
37
|
23
|
31
|
17
|
21
|
26
|
51
|
59
|
67
|
126
|
148
|
|||
|
2025/01
|
55
|
30
|
41
|
62
|
58
|
19
|
24
|
29
|
20
|
24
|
31
|
41
|
63
|
47
|
35
|
52
|
76
|
95
|
41
|
74
|
52
|
60
|
88
|
120
|
133
|
108
|
28
|
22
|
151
|
70
|
76
|
|
2024/12
|
68
|
15
|
39
|
44
|
23
|
36
|
28
|
33
|
51
|
37
|
45
|
69
|
33
|
39
|
40
|
39
|
17
|
18
|
55
|
55
|
26
|
30
|
39
|
86
|
93
|
33
|
31
|
46
|
76
|
81
|
50
|
|
2024/11
|
142
|
114
|
56
|
14
|
52
|
66
|
118
|
152
|
149
|
127
|
77
|
109
|
67
|
56
|
83
|
48
|
35
|
54
|
59
|
78
|
32
|
42
|
56
|
96
|
54
|
18
|
28
|
29
|
36
|
55
|
|
|
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