Air Quality
Excellent
No health implications.
9
PM2.5
18
PM10
57
O3
0.1
CO
3
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Dec
68
Good
Thu
19 Dec
78
Good
Fri
20 Dec
51
Good
Sat
21 Dec
41
Excellent
Sun
22 Dec
53
Good
Mon
23 Dec
89
Good
Tue
24 Dec
56
Good
Tongzhou Air quality rank
Air quality in the last 12 months (Tongzhou)
|
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
|
|
2024/06
|
38
|
46
|
57
|
59
|
66
|
73
|
49
|
46
|
59
|
66
|
55
|
54
|
56
|
37
|
41
|
50
|
60
|
59
|
77
|
64
|
58
|
97
|
105
|
23
|
42
|
64
|
62
|
66
|
69
|
41
|
|
|
2024/05
|
46
|
64
|
60
|
76
|
81
|
63
|
56
|
80
|
75
|
101
|
163
|
45
|
62
|
63
|
30
|
63
|
78
|
81
|
56
|
29
|
37
|
92
|
67
|
38
|
26
|
23
|
42
|
60
|
66
|
47
|
13
|
|
2024/04
|
82
|
84
|
68
|
68
|
72
|
106
|
51
|
98
|
58
|
66
|
127
|
140
|
84
|
57
|
110
|
59
|
93
|
93
|
67
|
50
|
87
|
92
|
18
|
70
|
104
|
110
|
89
|
29
|
24
|
32
|
|
|
2024/03
|
31
|
81
|
66
|
60
|
78
|
43
|
60
|
16
|
65
|
126
|
82
|
57
|
67
|
68
|
114
|
126
|
43
|
118
|
88
|
53
|
93
|
69
|
98
|
84
|
91
|
112
|
142
|
205
|
106
|
49
|
86
|
|
2024/02
|
35
|
69
|
83
|
104
|
102
|
74
|
28
|
33
|
60
|
34
|
92
|
170
|
176
|
86
|
26
|
69
|
100
|
98
|
26
|
26
|
25
|
22
|
45
|
66
|
54
|
74
|
69
|
79
|
48
|
||
|
2024/01
|
125
|
112
|
34
|
84
|
39
|
21
|
24
|
63
|
48
|
55
|
97
|
151
|
80
|
27
|
42
|
92
|
119
|
106
|
65
|
53
|
26
|
20
|
23
|
26
|
24
|
37
|
34
|
41
|
98
|
129
|
66
|
|
2023/12
|
36
|
60
|
75
|
104
|
139
|
114
|
254
|
174
|
106
|
56
|
41
|
85
|
116
|
75
|
36
|
22
|
32
|
91
|
53
|
20
|
26
|
36
|
42
|
50
|
78
|
66
|
47
|
63
|
162
|
190
|
28
|
|
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