Air Quality
Excellent
No health implications.
17
PM2.5
20
PM10
73
O3
0.4
CO
8
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 May
61
Good
Mon
12 May
84
Good
Tue
13 May
59
Good
Wed
14 May
40
Excellent
Thu
15 May
38
Excellent
Fri
16 May
48
Excellent
Sat
17 May
48
Excellent
Air quality in the last 12 months (Tieshangang)
|
2025/02
|
38
|
49
|
20
|
26
|
60
|
68
|
28
|
44
|
62
|
71
|
90
|
45
|
59
|
41
|
56
|
50
|
64
|
55
|
58
|
39
|
77
|
83
|
35
|
35
|
125
|
70
|
63
|
29
|
|||
|
2025/01
|
122
|
110
|
109
|
100
|
111
|
133
|
100
|
99
|
105
|
59
|
60
|
63
|
84
|
86
|
53
|
80
|
85
|
84
|
142
|
136
|
120
|
88
|
81
|
60
|
50
|
32
|
42
|
61
|
172
|
55
|
38
|
|
2024/12
|
50
|
49
|
48
|
52
|
47
|
76
|
73
|
35
|
49
|
51
|
42
|
45
|
57
|
62
|
56
|
62
|
73
|
76
|
61
|
75
|
108
|
84
|
92
|
96
|
104
|
103
|
95
|
82
|
98
|
85
|
108
|
|
2024/11
|
49
|
44
|
60
|
41
|
58
|
67
|
61
|
57
|
65
|
65
|
49
|
62
|
70
|
56
|
49
|
41
|
45
|
36
|
35
|
33
|
32
|
42
|
44
|
53
|
36
|
27
|
40
|
40
|
42
|
54
|
|
|
2024/10
|
39
|
28
|
46
|
55
|
52
|
53
|
58
|
65
|
53
|
50
|
56
|
46
|
40
|
31
|
26
|
30
|
18
|
14
|
20
|
30
|
37
|
44
|
23
|
32
|
38
|
45
|
36
|
25
|
31
|
37
|
55
|
|
2024/09
|
21
|
22
|
27
|
34
|
47
|
32
|
19
|
30
|
29
|
19
|
26
|
36
|
42
|
48
|
43
|
36
|
29
|
26
|
31
|
30
|
32
|
19
|
25
|
30
|
43
|
48
|
47
|
24
|
26
|
28
|
|
|
2024/08
|
25
|
24
|
21
|
16
|
23
|
20
|
21
|
22
|
24
|
26
|
22
|
23
|
22
|
25
|
20
|
27
|
24
|
18
|
18
|
19
|
25
|
23
|
23
|
22
|
24
|
21
|
21
|
19
|
21
|
30
|
26
|
|
2024/07
|
26
|
27
|
21
|
16
|
13
|
11
|
14
|
15
|
15
|
17
|
17
|
18
|
17
|
16
|
21
|
20
|
13
|
15
|
16
|
17
|
18
|
14
|
15
|
16
|
17
|
28
|
23
|
25
|
17
|
10
|
17
|
|
2024/06
|
20
|
20
|
21
|
20
|
18
|
18
|
18
|
14
|
20
|
20
|
24
|
22
|
26
|
28
|
29
|
33
|
32
|
28
|
26
|
25
|
25
|
14
|
17
|
14
|
18
|
17
|
16
|
14
|
19
|
26
|
|
|
2024/05
|
26
|
23
|
25
|
24
|
25
|
40
|
32
|
34
|
32
|
38
|
34
|
26
|
33
|
33
|
35
|
41
|
48
|
35
|
17
|
22
|
20
|
27
|
22
|
26
|
16
|
15
|
26
|
17
|
29
|
26
|
17
|
|
2024/04
|
59
|
43
|
44
|
50
|
54
|
39
|
41
|
30
|
36
|
46
|
50
|
42
|
38
|
44
|
47
|
35
|
42
|
31
|
40
|
44
|
33
|
29
|
35
|
45
|
35
|
43
|
58
|
57
|
42
|
52
|
|
|
2024/03
|
34
|
58
|
77
|
42
|
46
|
74
|
71
|
71
|
54
|
18
|
23
|
41
|
34
|
51
|
56
|
57
|
49
|
49
|
31
|
54
|
63
|
49
|
42
|
53
|
45
|
52
|
43
|
42
|
48
|
38
|
46
|
|
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