Air Quality
Excellent
No health implications.
7
PM2.5
10
PM10
87
O3
0.2
CO
6
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 May
48
Excellent
Mon
26 May
54
Good
Tue
27 May
52
Good
Wed
28 May
74
Good
Thu
29 May
73
Good
Fri
30 May
80
Good
Sat
31 May
36
Excellent
Air quality in the last 12 months (Sifangtai)
|
2025/04
|
58
|
60
|
72
|
58
|
60
|
47
|
55
|
62
|
65
|
108
|
127
|
81
|
64
|
37
|
45
|
33
|
87
|
75
|
39
|
41
|
74
|
40
|
57
|
42
|
36
|
16
|
27
|
32
|
34
|
35
|
|
|
2025/03
|
16
|
19
|
23
|
39
|
43
|
40
|
29
|
52
|
60
|
67
|
70
|
52
|
20
|
17
|
20
|
27
|
45
|
26
|
42
|
105
|
53
|
13
|
19
|
37
|
39
|
34
|
22
|
21
|
26
|
15
|
44
|
|
2025/02
|
68
|
100
|
84
|
54
|
22
|
29
|
56
|
51
|
31
|
46
|
62
|
79
|
35
|
28
|
49
|
32
|
14
|
37
|
72
|
44
|
33
|
26
|
34
|
40
|
54
|
23
|
53
|
60
|
|||
|
2025/01
|
89
|
59
|
63
|
84
|
76
|
57
|
87
|
86
|
62
|
61
|
79
|
105
|
90
|
103
|
47
|
54
|
68
|
130
|
127
|
108
|
137
|
189
|
143
|
136
|
116
|
139
|
120
|
61
|
68
|
55
|
56
|
|
2024/12
|
35
|
21
|
21
|
19
|
18
|
18
|
23
|
37
|
49
|
65
|
31
|
35
|
29
|
42
|
30
|
21
|
20
|
33
|
36
|
53
|
73
|
57
|
50
|
36
|
44
|
21
|
20
|
33
|
32
|
66
|
85
|
|
2024/11
|
62
|
45
|
62
|
31
|
65
|
18
|
39
|
43
|
65
|
43
|
73
|
45
|
107
|
112
|
72
|
53
|
16
|
20
|
48
|
53
|
93
|
35
|
41
|
62
|
54
|
24
|
19
|
28
|
43
|
19
|
|
|
2024/10
|
33
|
36
|
43
|
42
|
45
|
36
|
50
|
53
|
62
|
46
|
38
|
36
|
40
|
46
|
23
|
22
|
42
|
41
|
23
|
34
|
35
|
30
|
37
|
34
|
57
|
39
|
33
|
51
|
57
|
59
|
58
|
|
2024/09
|
11
|
16
|
21
|
29
|
15
|
19
|
21
|
24
|
25
|
19
|
18
|
22
|
16
|
25
|
19
|
18
|
19
|
19
|
21
|
12
|
33
|
36
|
37
|
38
|
26
|
19
|
36
|
45
|
37
|
37
|
|
|
2024/08
|
18
|
20
|
16
|
23
|
20
|
18
|
25
|
31
|
35
|
30
|
16
|
22
|
18
|
18
|
23
|
23
|
36
|
24
|
12
|
19
|
24
|
14
|
25
|
19
|
22
|
23
|
20
|
27
|
28
|
24
|
15
|
|
2024/07
|
71
|
65
|
59
|
43
|
43
|
57
|
64
|
76
|
68
|
44
|
56
|
24
|
28
|
44
|
42
|
36
|
20
|
14
|
24
|
34
|
27
|
24
|
34
|
19
|
33
|
23
|
14
|
20
|
26
|
18
|
24
|
|
2024/06
|
12
|
18
|
17
|
19
|
24
|
22
|
28
|
23
|
20
|
19
|
19
|
15
|
20
|
14
|
14
|
13
|
16
|
17
|
17
|
22
|
23
|
16
|
13
|
13
|
15
|
19
|
24
|
36
|
44
|
54
|
|
|
2024/05
|
46
|
57
|
41
|
63
|
85
|
55
|
42
|
38
|
24
|
41
|
15
|
13
|
21
|
19
|
16
|
28
|
35
|
36
|
21
|
20
|
25
|
29
|
24
|
15
|
25
|
17
|
14
|
21
|
13
|
28
|
13
|
|
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