Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
17
PM2.5
27
PM10
185
O3
0.7
CO
2
SO2
8
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
5 Sep
113
Light
Sat
6 Sep
111
Light
Sun
7 Sep
106
Light
Mon
8 Sep
53
Good
Tue
9 Sep
54
Good
Wed
10 Sep
63
Good
Thu
11 Sep
15
Excellent
Tongzhou Air quality rank
Air quality in the last 12 months (Tongzhou)
|
2025/08
|
19
|
12
|
19
|
14
|
22
|
32
|
26
|
28
|
31
|
13
|
11
|
22
|
20
|
12
|
10
|
18
|
28
|
14
|
18
|
18
|
26
|
43
|
43
|
37
|
25
|
22
|
20
|
14
|
14
|
12
|
19
|
|
2025/07
|
18
|
24
|
28
|
29
|
33
|
27
|
15
|
9
|
13
|
41
|
22
|
18
|
22
|
30
|
37
|
46
|
30
|
16
|
14
|
12
|
12
|
12
|
10
|
18
|
17
|
10
|
10
|
15
|
13
|
9
|
10
|
|
2025/06
|
15
|
8
|
40
|
64
|
53
|
39
|
32
|
10
|
16
|
12
|
11
|
11
|
10
|
22
|
15
|
27
|
40
|
37
|
30
|
19
|
19
|
9
|
10
|
13
|
31
|
36
|
28
|
25
|
25
|
21
|
|
|
2025/05
|
54
|
56
|
48
|
25
|
26
|
62
|
54
|
39
|
14
|
33
|
40
|
49
|
44
|
42
|
53
|
17
|
54
|
56
|
51
|
42
|
21
|
28
|
15
|
41
|
51
|
48
|
38
|
45
|
63
|
67
|
54
|
|
2025/04
|
45
|
69
|
50
|
49
|
60
|
59
|
78
|
74
|
95
|
68
|
58
|
96
|
96
|
63
|
56
|
57
|
63
|
58
|
50
|
34
|
36
|
41
|
59
|
71
|
52
|
42
|
40
|
37
|
49
|
55
|
|
|
2025/03
|
49
|
56
|
14
|
9
|
21
|
39
|
55
|
65
|
49
|
30
|
55
|
20
|
39
|
40
|
26
|
44
|
52
|
42
|
43
|
62
|
65
|
63
|
77
|
66
|
94
|
78
|
78
|
44
|
68
|
33
|
35
|
|
2025/02
|
22
|
57
|
75
|
58
|
54
|
39
|
52
|
33
|
47
|
53
|
35
|
84
|
48
|
38
|
76
|
131
|
67
|
44
|
41
|
27
|
31
|
51
|
41
|
61
|
88
|
124
|
154
|
56
|
|||
|
2025/01
|
60
|
42
|
46
|
39
|
92
|
95
|
65
|
66
|
34
|
35
|
67
|
86
|
85
|
111
|
50
|
66
|
80
|
79
|
114
|
169
|
94
|
42
|
36
|
35
|
32
|
44
|
62
|
90
|
145
|
52
|
48
|
|
2024/12
|
73
|
90
|
53
|
33
|
87
|
147
|
134
|
37
|
46
|
37
|
73
|
44
|
68
|
58
|
65
|
82
|
98
|
71
|
39
|
63
|
92
|
43
|
42
|
59
|
93
|
111
|
52
|
60
|
77
|
83
|
78
|
|
2024/11
|
9
|
49
|
56
|
51
|
32
|
27
|
28
|
27
|
30
|
37
|
42
|
45
|
41
|
34
|
52
|
22
|
33
|
26
|
24
|
31
|
71
|
75
|
27
|
27
|
26
|
47
|
71
|
71
|
50
|
72
|
|
|
2024/10
|
18
|
27
|
18
|
22
|
16
|
8
|
10
|
36
|
35
|
52
|
71
|
59
|
26
|
19
|
47
|
36
|
28
|
34
|
25
|
26
|
21
|
30
|
43
|
28
|
29
|
22
|
18
|
44
|
27
|
24
|
21
|
|
2024/09
|
34
|
35
|
17
|
18
|
21
|
23
|
41
|
26
|
18
|
25
|
11
|
18
|
18
|
14
|
18
|
19
|
17
|
15
|
16
|
9
|
18
|
26
|
21
|
23
|
16
|
11
|
23
|
25
|
30
|
32
|
|
|
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