Air Quality
Excellent
No health implications.
25
PM2.5
46
PM10
93
O3
0.5
CO
7
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
31 Jan
69
Good
Wed
1 Feb
71
Good
Thu
2 Feb
59
Good
Fri
3 Feb
47
Excellent
Sat
4 Feb
43
Excellent
Sun
5 Feb
42
Excellent
Mon
6 Feb
46
Excellent
Air quality in the last 12 months (Tieshangang)
|
2022/12
|
12
|
19
|
33
|
23
|
24
|
45
|
47
|
58
|
58
|
64
|
60
|
78
|
71
|
77
|
78
|
89
|
68
|
56
|
63
|
70
|
63
|
66
|
68
|
62
|
60
|
53
|
56
|
84
|
63
|
52
|
65
|
|
2022/11
|
45
|
47
|
57
|
44
|
24
|
30
|
37
|
48
|
36
|
36
|
40
|
42
|
43
|
52
|
47
|
40
|
34
|
30
|
42
|
47
|
58
|
28
|
14
|
14
|
28
|
36
|
27
|
23
|
26
|
21
|
|
|
2022/10
|
16
|
22
|
21
|
28
|
38
|
35
|
34
|
48
|
45
|
35
|
41
|
52
|
53
|
57
|
64
|
64
|
58
|
76
|
65
|
57
|
69
|
86
|
92
|
88
|
59
|
47
|
48
|
66
|
63
|
50
|
44
|
|
2022/09
|
30
|
41
|
45
|
56
|
51
|
66
|
61
|
12
|
21
|
24
|
35
|
39
|
52
|
60
|
57
|
40
|
46
|
49
|
39
|
37
|
40
|
46
|
49
|
55
|
57
|
76
|
79
|
41
|
20
|
14
|
|
|
2022/08
|
26
|
21
|
23
|
20
|
18
|
20
|
20
|
19
|
22
|
12
|
17
|
15
|
13
|
14
|
16
|
21
|
21
|
18
|
19
|
15
|
16
|
17
|
26
|
33
|
25
|
20
|
24
|
28
|
23
|
23
|
27
|
|
2022/07
|
27
|
19
|
19
|
21
|
28
|
17
|
15
|
19
|
21
|
24
|
21
|
18
|
20
|
22
|
18
|
18
|
22
|
25
|
20
|
18
|
16
|
21
|
20
|
15
|
19
|
18
|
22
|
23
|
27
|
29
|
42
|
|
2022/06
|
25
|
28
|
25
|
26
|
24
|
18
|
19
|
19
|
18
|
21
|
17
|
26
|
28
|
19
|
20
|
20
|
26
|
28
|
28
|
28
|
28
|
33
|
28
|
17
|
17
|
16
|
18
|
25
|
29
|
31
|
|
|
2022/05
|
17
|
29
|
45
|
54
|
52
|
31
|
25
|
28
|
31
|
20
|
24
|
24
|
22
|
22
|
24
|
19
|
31
|
40
|
35
|
29
|
49
|
24
|
17
|
17
|
19
|
21
|
29
|
27
|
28
|
27
|
27
|
|
2022/04
|
18
|
25
|
36
|
49
|
63
|
70
|
75
|
57
|
51
|
43
|
29
|
30
|
37
|
46
|
40
|
24
|
17
|
12
|
20
|
36
|
45
|
34
|
33
|
35
|
31
|
45
|
39
|
28
|
27
|
24
|
|
|
2022/03
|
70
|
88
|
85
|
55
|
56
|
44
|
34
|
57
|
48
|
45
|
47
|
39
|
39
|
43
|
54
|
41
|
34
|
52
|
46
|
26
|
24
|
52
|
21
|
28
|
28
|
32
|
37
|
28
|
37
|
41
|
38
|
|
2022/02
|
46
|
20
|
24
|
42
|
57
|
79
|
34
|
18
|
16
|
28
|
34
|
29
|
23
|
23
|
54
|
65
|
31
|
23
|
14
|
15
|
16
|
18
|
23
|
36
|
59
|
91
|
122
|
84
|
|||
|
2022/01
|
83
|
71
|
85
|
91
|
69
|
81
|
81
|
82
|
52
|
57
|
27
|
68
|
68
|
91
|
84
|
56
|
19
|
26
|
42
|
92
|
79
|
46
|
23
|
36
|
54
|
51
|
53
|
92
|
51
|
30
|
27
|
|
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