Air Quality
Excellent
No health implications.
12
PM2.5
45
PM10
103
O3
0.5
CO
8
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Apr
86
Good
Mon
21 Apr
85
Good
Tue
22 Apr
47
Excellent
Wed
23 Apr
52
Good
Thu
24 Apr
64
Good
Fri
25 Apr
64
Good
Sat
26 Apr
23
Excellent
Air quality in the last 12 months (Tieling County)
|
2025/02
|
144
|
193
|
96
|
66
|
55
|
73
|
55
|
53
|
69
|
59
|
64
|
47
|
74
|
94
|
109
|
51
|
26
|
22
|
37
|
47
|
45
|
50
|
49
|
57
|
85
|
62
|
99
|
142
|
|||
|
2025/01
|
47
|
49
|
53
|
64
|
106
|
113
|
45
|
27
|
47
|
54
|
71
|
87
|
88
|
71
|
39
|
52
|
68
|
71
|
91
|
84
|
82
|
112
|
130
|
108
|
93
|
136
|
132
|
46
|
114
|
94
|
109
|
|
2024/12
|
34
|
24
|
40
|
32
|
35
|
27
|
45
|
52
|
62
|
60
|
37
|
70
|
66
|
50
|
39
|
37
|
38
|
48
|
48
|
65
|
55
|
56
|
61
|
53
|
74
|
43
|
43
|
49
|
61
|
64
|
42
|
|
2024/11
|
65
|
88
|
96
|
29
|
34
|
41
|
35
|
55
|
53
|
43
|
38
|
48
|
54
|
46
|
44
|
31
|
19
|
19
|
39
|
82
|
75
|
44
|
65
|
62
|
51
|
21
|
38
|
37
|
49
|
52
|
|
|
2024/10
|
17
|
31
|
32
|
44
|
50
|
53
|
28
|
40
|
45
|
25
|
46
|
39
|
68
|
52
|
16
|
42
|
70
|
44
|
20
|
40
|
33
|
28
|
36
|
60
|
101
|
78
|
30
|
43
|
112
|
89
|
105
|
|
2024/09
|
22
|
12
|
33
|
40
|
20
|
20
|
26
|
34
|
40
|
19
|
27
|
23
|
33
|
15
|
22
|
38
|
41
|
30
|
36
|
12
|
16
|
24
|
30
|
39
|
31
|
28
|
33
|
39
|
41
|
14
|
|
|
2024/08
|
21
|
16
|
34
|
29
|
18
|
25
|
41
|
38
|
40
|
24
|
24
|
21
|
19
|
23
|
27
|
25
|
30
|
35
|
27
|
22
|
21
|
16
|
20
|
43
|
17
|
21
|
20
|
28
|
35
|
40
|
26
|
|
2024/07
|
59
|
52
|
15
|
46
|
48
|
35
|
29
|
44
|
44
|
43
|
63
|
67
|
61
|
58
|
61
|
45
|
18
|
49
|
48
|
21
|
42
|
27
|
38
|
24
|
23
|
9
|
25
|
21
|
34
|
48
|
24
|
|
2024/06
|
20
|
23
|
24
|
44
|
51
|
48
|
40
|
30
|
27
|
44
|
51
|
46
|
39
|
28
|
17
|
38
|
45
|
62
|
52
|
42
|
39
|
33
|
52
|
11
|
25
|
33
|
47
|
46
|
39
|
29
|
|
|
2024/05
|
55
|
66
|
62
|
61
|
37
|
48
|
46
|
53
|
63
|
83
|
90
|
41
|
57
|
63
|
32
|
24
|
46
|
54
|
28
|
19
|
41
|
44
|
23
|
28
|
35
|
17
|
18
|
31
|
56
|
50
|
18
|
|
2024/04
|
58
|
77
|
46
|
76
|
103
|
81
|
140
|
140
|
175
|
109
|
64
|
62
|
49
|
68
|
226
|
134
|
78
|
56
|
63
|
174
|
98
|
62
|
77
|
54
|
61
|
87
|
69
|
21
|
37
|
58
|
|
|
2024/03
|
35
|
44
|
43
|
51
|
37
|
38
|
48
|
33
|
53
|
96
|
75
|
53
|
73
|
116
|
102
|
201
|
90
|
89
|
106
|
69
|
68
|
38
|
110
|
32
|
64
|
85
|
69
|
135
|
90
|
72
|
56
|
|
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