Air Quality
Excellent
No health implications.
16
PM2.5
22
PM10
133
O3
0.5
CO
2
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Jul
100
Good
Sun
27 Jul
100
Good
Mon
28 Jul
88
Good
Tue
29 Jul
79
Good
Wed
30 Jul
60
Good
Thu
31 Jul
73
Good
Fri
1 Aug
38
Excellent
Tongzhou Air quality rank
Air quality in the last 12 months (Tongzhou)
|
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
|
|
|
2024/10
|
11
|
16
|
40
|
69
|
90
|
96
|
22
|
31
|
106
|
18
|
69
|
88
|
119
|
157
|
52
|
52
|
63
|
39
|
11
|
41
|
56
|
24
|
56
|
92
|
178
|
229
|
40
|
54
|
113
|
94
|
105
|
|
2024/09
|
23
|
13
|
39
|
58
|
26
|
29
|
34
|
34
|
77
|
13
|
25
|
28
|
41
|
24
|
33
|
47
|
32
|
45
|
54
|
37
|
8
|
18
|
52
|
67
|
53
|
40
|
49
|
59
|
71
|
10
|
|
|
2024/08
|
17
|
40
|
31
|
27
|
15
|
45
|
48
|
35
|
68
|
24
|
23
|
8
|
14
|
27
|
50
|
50
|
37
|
25
|
29
|
11
|
16
|
24
|
45
|
30
|
41
|
24
|
19
|
33
|
47
|
56
|
59
|
|
2024/07
|
29
|
39
|
31
|
65
|
92
|
36
|
47
|
36
|
63
|
71
|
73
|
60
|
63
|
89
|
64
|
44
|
19
|
31
|
52
|
33
|
45
|
28
|
58
|
51
|
25
|
23
|
30
|
28
|
38
|
13
|
31
|
|
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