Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
34
PM2.5
58
*
PM10
60
O3
0.5
CO
3
SO2
28
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
13 Mar
159
Moderate
Sat
14 Mar
77
Good
Sun
15 Mar
76
Good
Mon
16 Mar
100
Good
Tue
17 Mar
95
Good
Wed
18 Mar
21
Excellent
Thu
19 Mar
22
Excellent
Tongzhou Air quality rank
Air quality in the last 12 months (Tongzhou)
|
2026/02
|
47
|
26
|
83
|
104
|
64
|
10
|
18
|
34
|
91
|
98
|
43
|
83
|
90
|
100
|
15
|
23
|
75
|
30
|
67
|
91
|
165
|
47
|
33
|
70
|
103
|
79
|
38
|
75
|
|||
|
2026/01
|
29
|
43
|
51
|
83
|
46
|
46
|
28
|
63
|
94
|
37
|
33
|
66
|
33
|
60
|
99
|
50
|
27
|
42
|
21
|
20
|
27
|
50
|
47
|
57
|
48
|
66
|
37
|
66
|
65
|
110
|
83
|
|
2025/12
|
31
|
24
|
32
|
37
|
60
|
94
|
58
|
34
|
71
|
84
|
72
|
41
|
36
|
50
|
92
|
67
|
110
|
196
|
149
|
16
|
33
|
70
|
53
|
26
|
26
|
66
|
67
|
141
|
35
|
27
|
21
|
|
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
|
|
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