Air Quality
Excellent
No health implications.
9
PM2.5
20
PM10
150
O3
0.4
CO
8
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 May
84
Good
Thu
30 May
61
Good
Fri
31 May
62
Good
Sat
1 Jun
79
Good
Sun
2 Jun
78
Good
Mon
3 Jun
85
Good
Tue
4 Jun
87
Good
Air quality in the last 12 months (Tongcheng)
|
2024/02
|
35
|
18
|
26
|
66
|
81
|
58
|
81
|
89
|
94
|
146
|
84
|
61
|
49
|
37
|
49
|
27
|
26
|
32
|
63
|
17
|
21
|
35
|
45
|
41
|
53
|
72
|
72
|
63
|
59
|
||
|
2024/01
|
80
|
83
|
51
|
52
|
56
|
67
|
91
|
116
|
86
|
84
|
69
|
59
|
62
|
97
|
144
|
76
|
52
|
30
|
15
|
43
|
57
|
44
|
31
|
34
|
46
|
59
|
61
|
67
|
78
|
62
|
55
|
|
2023/12
|
38
|
46
|
57
|
67
|
60
|
55
|
52
|
43
|
33
|
48
|
15
|
32
|
36
|
34
|
22
|
30
|
36
|
37
|
40
|
39
|
75
|
44
|
49
|
55
|
55
|
53
|
75
|
149
|
181
|
131
|
87
|
|
2023/11
|
48
|
46
|
53
|
76
|
49
|
25
|
31
|
27
|
18
|
39
|
30
|
20
|
48
|
39
|
44
|
76
|
91
|
53
|
51
|
45
|
42
|
42
|
62
|
61
|
56
|
48
|
53
|
52
|
61
|
58
|
|
|
2023/10
|
24
|
34
|
19
|
25
|
36
|
43
|
28
|
28
|
27
|
35
|
43
|
56
|
62
|
51
|
47
|
42
|
46
|
51
|
56
|
27
|
32
|
36
|
41
|
52
|
72
|
72
|
74
|
81
|
72
|
70
|
58
|
|
2023/09
|
42
|
43
|
40
|
31
|
39
|
34
|
33
|
35
|
39
|
39
|
36
|
31
|
28
|
25
|
25
|
29
|
30
|
31
|
31
|
24
|
20
|
25
|
27
|
25
|
33
|
41
|
48
|
45
|
50
|
27
|
|
|
2023/08
|
23
|
24
|
31
|
32
|
36
|
30
|
32
|
28
|
32
|
39
|
40
|
40
|
27
|
29
|
33
|
38
|
38
|
45
|
48
|
44
|
41
|
28
|
34
|
43
|
47
|
43
|
27
|
24
|
33
|
36
|
40
|
|
2023/07
|
27
|
26
|
25
|
23
|
25
|
22
|
23
|
23
|
22
|
26
|
30
|
30
|
31
|
26
|
37
|
52
|
46
|
30
|
22
|
22
|
24
|
17
|
19
|
27
|
25
|
25
|
27
|
23
|
17
|
23
|
23
|
|
2023/06
|
37
|
49
|
51
|
58
|
28
|
30
|
35
|
37
|
45
|
40
|
45
|
43
|
35
|
41
|
37
|
38
|
26
|
22
|
19
|
22
|
28
|
28
|
25
|
27
|
26
|
26
|
22
|
24
|
25
|
20
|
|
|
2023/05
|
59
|
59
|
42
|
34
|
28
|
21
|
36
|
48
|
41
|
40
|
38
|
43
|
44
|
49
|
47
|
43
|
29
|
35
|
45
|
46
|
32
|
39
|
52
|
38
|
36
|
46
|
38
|
29
|
51
|
43
|
27
|
|
2023/04
|
49
|
42
|
26
|
19
|
27
|
26
|
47
|
63
|
56
|
58
|
49
|
113
|
56
|
45
|
91
|
70
|
54
|
34
|
40
|
49
|
41
|
34
|
14
|
17
|
25
|
29
|
31
|
38
|
97
|
90
|
|
|
2023/03
|
78
|
104
|
75
|
78
|
54
|
51
|
60
|
67
|
44
|
47
|
52
|
110
|
83
|
73
|
69
|
97
|
19
|
24
|
18
|
15
|
18
|
26
|
36
|
53
|
53
|
47
|
73
|
77
|
67
|
60
|
53
|
|
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