Air Quality
Excellent
No health implications.
10
PM2.5
18
PM10
91
O3
0.6
CO
4
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Jul
52
Good
Sun
13 Jul
57
Good
Mon
14 Jul
70
Good
Tue
15 Jul
74
Good
Wed
16 Jul
70
Good
Thu
17 Jul
66
Good
Fri
18 Jul
28
Excellent
Air quality in the last 12 months (Tongcheng)
|
2025/06
|
12
|
20
|
31
|
38
|
35
|
32
|
26
|
19
|
28
|
25
|
20
|
24
|
22
|
19
|
23
|
31
|
19
|
11
|
10
|
16
|
15
|
11
|
14
|
20
|
24
|
29
|
19
|
12
|
12
|
16
|
|
|
2025/05
|
46
|
56
|
57
|
55
|
35
|
76
|
98
|
37
|
37
|
43
|
35
|
39
|
36
|
50
|
47
|
18
|
29
|
57
|
40
|
20
|
20
|
19
|
34
|
49
|
43
|
40
|
45
|
24
|
19
|
19
|
14
|
|
2025/04
|
63
|
54
|
56
|
57
|
62
|
65
|
63
|
59
|
55
|
41
|
41
|
228
|
140
|
135
|
56
|
55
|
68
|
67
|
54
|
61
|
34
|
39
|
50
|
36
|
43
|
38
|
39
|
53
|
55
|
45
|
|
|
2025/03
|
40
|
31
|
15
|
30
|
42
|
46
|
51
|
52
|
51
|
45
|
36
|
53
|
38
|
30
|
25
|
43
|
36
|
38
|
44
|
35
|
41
|
48
|
55
|
54
|
50
|
63
|
81
|
66
|
66
|
61
|
68
|
|
2025/02
|
52
|
43
|
56
|
51
|
48
|
48
|
73
|
44
|
40
|
50
|
50
|
70
|
87
|
75
|
59
|
49
|
43
|
31
|
43
|
44
|
61
|
28
|
62
|
80
|
70
|
53
|
46
|
45
|
|||
|
2025/01
|
74
|
94
|
145
|
160
|
88
|
68
|
78
|
72
|
61
|
52
|
57
|
62
|
66
|
79
|
70
|
60
|
59
|
71
|
71
|
89
|
74
|
72
|
168
|
115
|
25
|
31
|
53
|
66
|
137
|
58
|
73
|
|
2024/12
|
40
|
49
|
86
|
90
|
43
|
47
|
47
|
81
|
60
|
58
|
57
|
72
|
74
|
53
|
55
|
48
|
54
|
68
|
68
|
80
|
82
|
63
|
67
|
77
|
80
|
108
|
127
|
64
|
54
|
82
|
94
|
|
2024/11
|
58
|
75
|
60
|
67
|
67
|
52
|
43
|
42
|
52
|
50
|
47
|
49
|
51
|
65
|
70
|
73
|
19
|
15
|
29
|
29
|
37
|
41
|
52
|
56
|
30
|
26
|
35
|
44
|
44
|
43
|
|
|
2024/10
|
20
|
53
|
45
|
27
|
43
|
81
|
44
|
29
|
39
|
56
|
59
|
82
|
151
|
74
|
64
|
44
|
27
|
28
|
18
|
25
|
36
|
19
|
28
|
30
|
47
|
50
|
46
|
67
|
51
|
44
|
45
|
|
2024/09
|
35
|
40
|
44
|
37
|
38
|
47
|
41
|
30
|
37
|
33
|
34
|
33
|
27
|
30
|
36
|
30
|
38
|
35
|
31
|
35
|
30
|
32
|
33
|
39
|
45
|
53
|
55
|
40
|
25
|
43
|
|
|
2024/08
|
13
|
17
|
18
|
19
|
24
|
23
|
27
|
25
|
23
|
25
|
55
|
58
|
30
|
26
|
23
|
27
|
34
|
31
|
28
|
29
|
28
|
29
|
18
|
18
|
20
|
29
|
25
|
16
|
36
|
31
|
32
|
|
2024/07
|
12
|
19
|
21
|
16
|
17
|
16
|
20
|
18
|
22
|
28
|
30
|
25
|
26
|
27
|
23
|
21
|
15
|
16
|
16
|
16
|
20
|
19
|
19
|
25
|
32
|
26
|
18
|
7
|
8
|
12
|
15
|
|
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