Air Quality
Excellent
No health implications.
12
PM2.5
19
PM10
76
O3
0.4
CO
7
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Jul
66
Good
Fri
25 Jul
70
Good
Sat
26 Jul
72
Good
Sun
27 Jul
64
Good
Mon
28 Jul
71
Good
Tue
29 Jul
22
Excellent
Wed
30 Jul
26
Excellent
Air quality in the last 12 months (Tongwei)
|
2025/06
|
39
|
42
|
37
|
33
|
36
|
41
|
42
|
47
|
37
|
41
|
41
|
41
|
38
|
57
|
65
|
42
|
44
|
39
|
44
|
41
|
33
|
25
|
25
|
27
|
24
|
26
|
22
|
28
|
33
|
20
|
|
|
2025/05
|
70
|
87
|
106
|
126
|
102
|
113
|
71
|
73
|
70
|
48
|
42
|
58
|
72
|
59
|
49
|
63
|
114
|
56
|
62
|
56
|
66
|
93
|
49
|
38
|
29
|
46
|
29
|
26
|
29
|
83
|
60
|
|
2025/04
|
110
|
96
|
86
|
109
|
87
|
69
|
53
|
99
|
111
|
75
|
193
|
362
|
108
|
67
|
66
|
131
|
79
|
253
|
146
|
96
|
113
|
95
|
57
|
56
|
58
|
44
|
56
|
53
|
62
|
122
|
|
|
2025/03
|
63
|
47
|
45
|
53
|
47
|
48
|
62
|
64
|
52
|
43
|
176
|
89
|
89
|
47
|
51
|
52
|
48
|
40
|
50
|
61
|
55
|
56
|
68
|
58
|
70
|
373
|
115
|
103
|
80
|
79
|
77
|
|
2025/02
|
62
|
59
|
48
|
47
|
50
|
50
|
69
|
70
|
60
|
50
|
77
|
82
|
66
|
58
|
58
|
73
|
62
|
53
|
66
|
58
|
58
|
54
|
47
|
53
|
56
|
48
|
43
|
51
|
|||
|
2025/01
|
64
|
60
|
73
|
65
|
61
|
57
|
54
|
59
|
59
|
60
|
67
|
66
|
66
|
62
|
59
|
57
|
63
|
64
|
63
|
66
|
71
|
71
|
100
|
110
|
67
|
78
|
80
|
82
|
114
|
80
|
70
|
|
2024/12
|
60
|
65
|
59
|
55
|
56
|
60
|
50
|
53
|
49
|
67
|
64
|
56
|
53
|
62
|
66
|
63
|
68
|
58
|
62
|
66
|
60
|
55
|
61
|
64
|
66
|
68
|
56
|
61
|
58
|
53
|
53
|
|
2024/11
|
45
|
41
|
48
|
55
|
52
|
40
|
40
|
41
|
51
|
54
|
52
|
57
|
57
|
45
|
60
|
46
|
40
|
29
|
40
|
50
|
53
|
46
|
47
|
41
|
49
|
56
|
61
|
65
|
56
|
62
|
|
|
2024/10
|
31
|
32
|
34
|
28
|
37
|
48
|
40
|
39
|
42
|
44
|
40
|
29
|
34
|
31
|
34
|
41
|
30
|
50
|
34
|
31
|
39
|
38
|
52
|
41
|
49
|
48
|
40
|
46
|
45
|
38
|
36
|
|
2024/09
|
49
|
35
|
34
|
30
|
21
|
25
|
22
|
28
|
27
|
23
|
23
|
30
|
25
|
28
|
28
|
29
|
31
|
33
|
35
|
39
|
31
|
37
|
41
|
38
|
30
|
24
|
48
|
60
|
33
|
27
|
|
|
2024/08
|
31
|
33
|
27
|
24
|
24
|
26
|
21
|
24
|
69
|
69
|
44
|
39
|
34
|
34
|
41
|
33
|
31
|
28
|
32
|
29
|
34
|
35
|
40
|
39
|
35
|
32
|
26
|
33
|
33
|
29
|
45
|
|
2024/07
|
32
|
32
|
30
|
35
|
50
|
49
|
25
|
23
|
39
|
49
|
41
|
58
|
32
|
26
|
16
|
20
|
26
|
26
|
19
|
19
|
116
|
21
|
29
|
110
|
74
|
53
|
48
|
40
|
31
|
30
|
32
|
|
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