Air Quality
Excellent
No health implications.
22
PM2.5
45
PM10
98
O3
0.7
CO
6
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
79
Good
Mon
5 May
52
Good
Tue
6 May
81
Good
Wed
7 May
81
Good
Thu
8 May
50
Excellent
Fri
9 May
58
Good
Sat
10 May
32
Excellent
Air quality in the last 12 months (Dongzhi)
|
2025/02
|
51
|
39
|
81
|
74
|
51
|
45
|
78
|
39
|
35
|
51
|
76
|
87
|
83
|
75
|
85
|
78
|
74
|
48
|
56
|
53
|
34
|
46
|
74
|
93
|
90
|
84
|
64
|
42
|
|||
|
2025/01
|
89
|
100
|
155
|
105
|
98
|
78
|
59
|
56
|
52
|
39
|
59
|
76
|
81
|
86
|
70
|
50
|
56
|
64
|
81
|
103
|
104
|
116
|
169
|
83
|
41
|
32
|
49
|
67
|
174
|
92
|
84
|
|
2024/12
|
53
|
57
|
106
|
75
|
54
|
62
|
92
|
65
|
55
|
66
|
59
|
79
|
77
|
63
|
58
|
62
|
68
|
91
|
45
|
66
|
81
|
60
|
74
|
85
|
114
|
107
|
90
|
84
|
69
|
87
|
91
|
|
2024/11
|
27
|
44
|
48
|
56
|
49
|
48
|
41
|
43
|
48
|
40
|
41
|
47
|
46
|
53
|
51
|
52
|
16
|
25
|
35
|
45
|
42
|
53
|
64
|
51
|
36
|
38
|
48
|
58
|
52
|
48
|
|
|
2024/10
|
23
|
39
|
28
|
31
|
37
|
21
|
11
|
30
|
44
|
52
|
61
|
64
|
69
|
62
|
39
|
28
|
22
|
36
|
19
|
29
|
38
|
30
|
45
|
45
|
40
|
28
|
17
|
47
|
61
|
42
|
31
|
|
2024/09
|
43
|
45
|
36
|
42
|
41
|
30
|
42
|
48
|
40
|
36
|
22
|
17
|
29
|
31
|
31
|
22
|
32
|
27
|
27
|
18
|
18
|
28
|
29
|
32
|
46
|
54
|
38
|
28
|
38
|
39
|
|
|
2024/08
|
15
|
19
|
26
|
27
|
32
|
27
|
32
|
34
|
39
|
41
|
39
|
38
|
25
|
17
|
23
|
28
|
43
|
43
|
19
|
18
|
26
|
26
|
31
|
34
|
42
|
47
|
34
|
15
|
27
|
36
|
39
|
|
2024/07
|
12
|
12
|
16
|
18
|
19
|
20
|
20
|
19
|
24
|
26
|
29
|
30
|
18
|
16
|
28
|
34
|
21
|
17
|
19
|
20
|
24
|
28
|
33
|
33
|
25
|
18
|
11
|
12
|
15
|
25
|
23
|
|
2024/06
|
22
|
32
|
30
|
32
|
27
|
28
|
25
|
32
|
35
|
22
|
21
|
24
|
25
|
28
|
29
|
46
|
29
|
24
|
13
|
17
|
25
|
17
|
15
|
17
|
15
|
24
|
14
|
10
|
17
|
15
|
|
|
2024/05
|
22
|
33
|
39
|
21
|
24
|
26
|
34
|
50
|
53
|
59
|
44
|
75
|
74
|
52
|
56
|
51
|
57
|
57
|
67
|
55
|
27
|
22
|
34
|
27
|
30
|
20
|
16
|
21
|
28
|
29
|
22
|
|
2024/04
|
36
|
13
|
28
|
35
|
42
|
41
|
35
|
16
|
32
|
46
|
53
|
37
|
41
|
28
|
33
|
53
|
27
|
30
|
28
|
33
|
29
|
33
|
43
|
101
|
57
|
34
|
51
|
33
|
19
|
23
|
|
|
2024/03
|
50
|
50
|
35
|
31
|
39
|
56
|
73
|
66
|
62
|
72
|
74
|
71
|
82
|
71
|
85
|
66
|
57
|
60
|
65
|
67
|
55
|
51
|
39
|
40
|
30
|
38
|
47
|
34
|
42
|
42
|
48
|
|
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