Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
39
PM2.5
77
*
PM10
2
O3
0.7
CO
5
SO2
66
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
12 Jan
74
Good
Tue
13 Jan
104
Light
Wed
14 Jan
128
Light
Thu
15 Jan
157
Moderate
Fri
16 Jan
64
Good
Sat
17 Jan
34
Excellent
Sun
18 Jan
28
Excellent
Tongzhou Air quality rank
Air quality in the last 12 months (Tongzhou)
|
2025/11
|
63
|
15
|
57
|
83
|
191
|
153
|
84
|
64
|
31
|
64
|
104
|
67
|
22
|
66
|
85
|
31
|
21
|
29
|
49
|
29
|
60
|
73
|
94
|
63
|
34
|
73
|
30
|
81
|
99
|
99
|
|
|
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
|
|
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