Air Quality
Excellent
No health implications.
26
PM2.5
30
PM10
70
O3
0.6
CO
3
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Mar
59
Good
Sat
14 Mar
57
Good
Sun
15 Mar
55
Good
Mon
16 Mar
59
Good
Tue
17 Mar
44
Excellent
Wed
18 Mar
42
Excellent
Thu
19 Mar
41
Excellent
Tongzhou Air quality rank
Air quality in the last 12 months (Tongzhou)
|
2026/02
|
63
|
100
|
57
|
65
|
121
|
63
|
28
|
37
|
34
|
49
|
85
|
104
|
101
|
83
|
113
|
40
|
55
|
114
|
98
|
51
|
43
|
114
|
57
|
20
|
42
|
20
|
17
|
38
|
|||
|
2026/01
|
22
|
28
|
56
|
77
|
113
|
101
|
66
|
92
|
79
|
92
|
50
|
53
|
98
|
91
|
136
|
181
|
81
|
29
|
24
|
18
|
36
|
48
|
81
|
103
|
51
|
17
|
50
|
34
|
34
|
29
|
18
|
|
2025/12
|
88
|
33
|
28
|
40
|
51
|
72
|
102
|
76
|
45
|
33
|
87
|
22
|
30
|
66
|
67
|
83
|
110
|
46
|
49
|
108
|
24
|
24
|
34
|
61
|
36
|
19
|
32
|
80
|
111
|
70
|
26
|
|
2025/11
|
144
|
98
|
19
|
18
|
21
|
29
|
34
|
28
|
24
|
41
|
18
|
23
|
34
|
80
|
50
|
35
|
28
|
31
|
54
|
68
|
91
|
136
|
143
|
105
|
81
|
51
|
148
|
109
|
93
|
102
|
|
|
2025/10
|
35
|
27
|
22
|
20
|
23
|
32
|
20
|
14
|
16
|
22
|
33
|
36
|
39
|
11
|
22
|
12
|
10
|
10
|
14
|
15
|
11
|
14
|
17
|
23
|
30
|
32
|
44
|
19
|
20
|
18
|
16
|
|
2025/09
|
26
|
12
|
21
|
25
|
22
|
24
|
29
|
21
|
9
|
15
|
17
|
27
|
23
|
31
|
30
|
32
|
26
|
15
|
18
|
16
|
15
|
16
|
22
|
12
|
11
|
17
|
14
|
27
|
14
|
22
|
|
|
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
|
|
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