Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
30
PM2.5
55
*
PM10
21
O3
1.1
CO
4
SO2
28
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
19 Jan
66
Good
Tue
20 Jan
47
Excellent
Wed
21 Jan
48
Excellent
Thu
22 Jan
72
Good
Fri
23 Jan
83
Good
Sat
24 Jan
111
Light
Sun
25 Jan
18
Excellent
De'an Air quality rank
Air quality in the last 12 months (De'an)
|
2025/11
|
50
|
56
|
92
|
74
|
72
|
61
|
42
|
27
|
22
|
65
|
57
|
39
|
47
|
62
|
70
|
56
|
75
|
27
|
35
|
43
|
57
|
70
|
61
|
56
|
91
|
70
|
95
|
93
|
78
|
66
|
|
|
2025/10
|
37
|
41
|
48
|
43
|
45
|
25
|
48
|
69
|
60
|
52
|
68
|
63
|
54
|
48
|
67
|
38
|
49
|
28
|
10
|
27
|
26
|
31
|
33
|
43
|
59
|
75
|
73
|
93
|
104
|
116
|
45
|
|
2025/09
|
17
|
23
|
27
|
34
|
32
|
32
|
34
|
33
|
16
|
14
|
15
|
21
|
28
|
20
|
27
|
35
|
33
|
27
|
44
|
18
|
38
|
32
|
38
|
14
|
15
|
22
|
35
|
52
|
42
|
42
|
|
|
2025/08
|
27
|
31
|
30
|
30
|
19
|
12
|
12
|
15
|
21
|
26
|
29
|
27
|
29
|
19
|
13
|
20
|
23
|
23
|
15
|
12
|
16
|
17
|
19
|
23
|
24
|
19
|
16
|
19
|
24
|
28
|
15
|
|
2025/07
|
16
|
23
|
24
|
28
|
28
|
30
|
36
|
31
|
18
|
18
|
27
|
17
|
17
|
23
|
27
|
27
|
22
|
26
|
31
|
11
|
10
|
10
|
13
|
17
|
19
|
22
|
16
|
20
|
17
|
22
|
15
|
|
2025/06
|
15
|
12
|
25
|
31
|
28
|
29
|
24
|
20
|
19
|
26
|
19
|
25
|
29
|
24
|
12
|
35
|
20
|
11
|
14
|
13
|
14
|
9
|
10
|
17
|
30
|
30
|
20
|
13
|
12
|
18
|
|
|
2025/05
|
40
|
48
|
60
|
57
|
27
|
69
|
127
|
30
|
29
|
47
|
39
|
49
|
42
|
43
|
61
|
28
|
32
|
79
|
35
|
23
|
16
|
20
|
24
|
53
|
55
|
52
|
55
|
29
|
25
|
20
|
15
|
|
2025/04
|
57
|
51
|
59
|
57
|
66
|
62
|
61
|
59
|
61
|
51
|
41
|
225
|
132
|
116
|
49
|
54
|
66
|
66
|
61
|
57
|
28
|
25
|
51
|
34
|
38
|
30
|
29
|
46
|
53
|
51
|
|
|
2025/03
|
36
|
33
|
20
|
27
|
44
|
61
|
69
|
66
|
66
|
58
|
50
|
47
|
46
|
46
|
18
|
47
|
32
|
40
|
43
|
41
|
40
|
50
|
56
|
64
|
57
|
73
|
66
|
62
|
61
|
68
|
57
|
|
2025/02
|
44
|
28
|
58
|
49
|
45
|
42
|
73
|
44
|
33
|
49
|
61
|
86
|
83
|
57
|
50
|
47
|
53
|
48
|
43
|
46
|
41
|
35
|
79
|
98
|
88
|
76
|
66
|
40
|
|||
|
2025/01
|
77
|
84
|
160
|
120
|
100
|
72
|
67
|
65
|
54
|
38
|
54
|
63
|
60
|
59
|
81
|
49
|
57
|
57
|
64
|
87
|
71
|
64
|
136
|
114
|
40
|
32
|
52
|
60
|
83
|
55
|
48
|
|
2024/12
|
47
|
51
|
100
|
111
|
54
|
61
|
73
|
86
|
59
|
71
|
47
|
111
|
93
|
60
|
51
|
52
|
60
|
98
|
44
|
62
|
96
|
59
|
74
|
88
|
95
|
109
|
123
|
87
|
58
|
79
|
88
|
|
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