Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
52
*
PM2.5
85
PM10
3
O3
1.0
CO
7
SO2
91
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
19 Dec
59
Good
Sat
20 Dec
48
Excellent
Sun
21 Dec
60
Good
Mon
22 Dec
51
Good
Tue
23 Dec
55
Good
Wed
24 Dec
59
Good
Thu
25 Dec
49
Excellent
Air quality in the last 12 months (Ouhai)
|
2025/11
|
35
|
53
|
41
|
22
|
19
|
36
|
36
|
40
|
26
|
31
|
29
|
15
|
15
|
38
|
52
|
45
|
40
|
20
|
32
|
46
|
62
|
66
|
63
|
62
|
61
|
87
|
78
|
87
|
85
|
75
|
|
|
2025/10
|
21
|
20
|
15
|
14
|
22
|
33
|
30
|
29
|
26
|
28
|
28
|
29
|
26
|
27
|
18
|
29
|
26
|
32
|
10
|
14
|
18
|
22
|
31
|
35
|
41
|
43
|
30
|
32
|
26
|
31
|
16
|
|
2025/09
|
22
|
20
|
17
|
24
|
26
|
19
|
14
|
25
|
21
|
19
|
20
|
27
|
39
|
27
|
34
|
17
|
18
|
15
|
13
|
19
|
21
|
23
|
17
|
17
|
16
|
20
|
19
|
23
|
23
|
24
|
|
|
2025/08
|
35
|
34
|
33
|
24
|
20
|
26
|
34
|
47
|
44
|
44
|
40
|
27
|
18
|
17
|
14
|
14
|
17
|
17
|
18
|
29
|
28
|
31
|
24
|
19
|
18
|
17
|
14
|
15
|
15
|
17
|
17
|
|
2025/07
|
13
|
20
|
22
|
27
|
19
|
15
|
10
|
11
|
15
|
21
|
25
|
24
|
23
|
32
|
43
|
41
|
38
|
22
|
14
|
16
|
10
|
19
|
19
|
16
|
16
|
13
|
18
|
16
|
18
|
19
|
33
|
|
2025/06
|
39
|
50
|
22
|
31
|
33
|
40
|
37
|
33
|
24
|
20
|
11
|
17
|
18
|
28
|
25
|
19
|
37
|
33
|
23
|
20
|
30
|
36
|
24
|
28
|
28
|
30
|
32
|
25
|
20
|
10
|
|
|
2025/05
|
39
|
50
|
56
|
37
|
39
|
46
|
56
|
46
|
40
|
34
|
36
|
37
|
35
|
33
|
32
|
45
|
52
|
22
|
36
|
46
|
37
|
36
|
50
|
32
|
68
|
56
|
28
|
32
|
20
|
36
|
50
|
|
2025/04
|
31
|
54
|
61
|
61
|
44
|
58
|
59
|
56
|
67
|
50
|
48
|
49
|
93
|
87
|
71
|
64
|
80
|
67
|
44
|
51
|
52
|
41
|
28
|
33
|
21
|
51
|
53
|
45
|
39
|
38
|
|
|
2025/03
|
63
|
58
|
54
|
31
|
20
|
18
|
45
|
60
|
62
|
46
|
72
|
52
|
31
|
37
|
19
|
31
|
43
|
50
|
50
|
60
|
56
|
53
|
66
|
74
|
90
|
71
|
62
|
33
|
44
|
31
|
29
|
|
2025/02
|
37
|
13
|
47
|
76
|
51
|
55
|
49
|
39
|
38
|
49
|
47
|
46
|
91
|
52
|
53
|
65
|
69
|
34
|
54
|
29
|
19
|
39
|
29
|
95
|
108
|
80
|
81
|
63
|
|||
|
2025/01
|
82
|
51
|
58
|
52
|
52
|
74
|
80
|
80
|
60
|
39
|
49
|
58
|
64
|
64
|
92
|
47
|
62
|
61
|
55
|
71
|
102
|
84
|
57
|
33
|
39
|
32
|
29
|
42
|
86
|
48
|
48
|
|
2024/12
|
55
|
60
|
62
|
59
|
53
|
33
|
40
|
69
|
39
|
54
|
27
|
35
|
18
|
102
|
90
|
59
|
54
|
66
|
39
|
35
|
61
|
65
|
49
|
51
|
51
|
84
|
122
|
66
|
66
|
58
|
72
|
|
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