Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
45
*
PM2.5
54
PM10
93
O3
0.7
CO
5
SO2
14
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
23 Feb
50
Excellent
Mon
24 Feb
55
Good
Tue
25 Feb
68
Good
Wed
26 Feb
75
Good
Thu
27 Feb
63
Good
Fri
28 Feb
56
Good
Sat
1 Mar
42
Excellent
Air quality in the last 12 months (Gaoan)
|
2025/01
|
110
|
90
|
131
|
125
|
136
|
99
|
69
|
61
|
56
|
39
|
51
|
64
|
72
|
62
|
74
|
51
|
57
|
62
|
66
|
81
|
88
|
71
|
78
|
126
|
42
|
27
|
50
|
70
|
115
|
69
|
50
|
|
2024/12
|
49
|
58
|
68
|
103
|
60
|
49
|
59
|
95
|
61
|
75
|
38
|
91
|
74
|
59
|
57
|
59
|
67
|
77
|
65
|
70
|
84
|
73
|
71
|
84
|
90
|
98
|
120
|
90
|
79
|
88
|
88
|
|
2024/11
|
38
|
51
|
49
|
60
|
63
|
49
|
43
|
45
|
51
|
53
|
47
|
47
|
52
|
50
|
26
|
49
|
39
|
26
|
39
|
48
|
39
|
36
|
60
|
59
|
39
|
33
|
37
|
40
|
42
|
48
|
|
|
2024/10
|
35
|
44
|
33
|
31
|
38
|
42
|
36
|
27
|
38
|
50
|
55
|
56
|
70
|
86
|
63
|
27
|
37
|
46
|
33
|
30
|
42
|
37
|
38
|
39
|
55
|
47
|
28
|
46
|
68
|
53
|
45
|
|
2024/09
|
44
|
47
|
51
|
47
|
41
|
35
|
33
|
39
|
36
|
34
|
36
|
22
|
28
|
37
|
38
|
32
|
30
|
35
|
36
|
30
|
31
|
34
|
31
|
35
|
40
|
48
|
54
|
30
|
30
|
33
|
|
|
2024/08
|
18
|
21
|
28
|
34
|
33
|
27
|
33
|
31
|
30
|
34
|
36
|
31
|
25
|
24
|
30
|
38
|
39
|
23
|
25
|
30
|
35
|
29
|
29
|
37
|
38
|
39
|
36
|
18
|
24
|
37
|
46
|
|
2024/07
|
19
|
17
|
22
|
22
|
18
|
20
|
22
|
20
|
26
|
29
|
32
|
30
|
25
|
25
|
29
|
24
|
17
|
17
|
18
|
19
|
24
|
25
|
28
|
37
|
33
|
29
|
17
|
14
|
14
|
18
|
18
|
|
2024/06
|
19
|
24
|
21
|
27
|
27
|
28
|
29
|
33
|
28
|
26
|
18
|
24
|
27
|
23
|
22
|
23
|
21
|
22
|
29
|
27
|
26
|
24
|
30
|
24
|
15
|
13
|
21
|
32
|
19
|
20
|
|
|
2024/05
|
22
|
34
|
40
|
23
|
19
|
34
|
44
|
44
|
52
|
51
|
48
|
61
|
68
|
49
|
53
|
56
|
51
|
48
|
43
|
34
|
25
|
23
|
29
|
25
|
26
|
24
|
22
|
22
|
31
|
36
|
21
|
|
2024/04
|
33
|
23
|
30
|
44
|
48
|
51
|
51
|
51
|
35
|
38
|
44
|
39
|
39
|
39
|
55
|
41
|
23
|
25
|
25
|
22
|
34
|
33
|
36
|
58
|
48
|
48
|
42
|
30
|
34
|
18
|
|
|
2024/03
|
48
|
48
|
31
|
40
|
32
|
60
|
66
|
61
|
58
|
64
|
59
|
53
|
66
|
53
|
53
|
40
|
41
|
40
|
41
|
73
|
64
|
60
|
33
|
33
|
24
|
28
|
41
|
31
|
36
|
44
|
23
|
|
2024/02
|
29
|
17
|
15
|
22
|
66
|
38
|
65
|
72
|
86
|
117
|
85
|
67
|
55
|
49
|
36
|
27
|
33
|
32
|
34
|
36
|
18
|
20
|
33
|
38
|
58
|
75
|
80
|
47
|
51
|
||
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1
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14
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15
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16
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17
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18
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19
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20
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21
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22
|
23
|
24
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25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution