Air Quality
Excellent
No health implications.
15
PM2.5
25
PM10
32
O3
0.6
CO
8
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Jul
49
Excellent
Wed
30 Jul
52
Good
Thu
31 Jul
52
Good
Fri
1 Aug
49
Excellent
Sat
2 Aug
51
Good
Sun
3 Aug
16
Excellent
Mon
4 Aug
34
Excellent
Air quality in the last 12 months (Gaoan)
|
2025/06
|
29
|
17
|
27
|
34
|
35
|
37
|
34
|
29
|
26
|
30
|
24
|
26
|
36
|
28
|
17
|
26
|
18
|
15
|
17
|
15
|
18
|
13
|
14
|
20
|
32
|
34
|
19
|
18
|
24
|
26
|
|
|
2025/05
|
48
|
51
|
54
|
60
|
27
|
43
|
83
|
38
|
29
|
44
|
34
|
44
|
44
|
44
|
49
|
25
|
26
|
42
|
31
|
23
|
23
|
26
|
27
|
51
|
54
|
57
|
56
|
32
|
25
|
27
|
23
|
|
2025/04
|
54
|
75
|
61
|
67
|
60
|
60
|
60
|
61
|
60
|
44
|
43
|
221
|
160
|
123
|
57
|
55
|
66
|
63
|
31
|
34
|
33
|
22
|
44
|
34
|
29
|
29
|
29
|
39
|
55
|
55
|
|
|
2025/03
|
40
|
33
|
35
|
22
|
44
|
52
|
54
|
52
|
59
|
54
|
61
|
50
|
35
|
34
|
20
|
42
|
40
|
37
|
45
|
40
|
47
|
50
|
54
|
61
|
60
|
70
|
68
|
74
|
55
|
54
|
49
|
|
2025/02
|
41
|
26
|
46
|
50
|
55
|
54
|
68
|
52
|
35
|
55
|
67
|
80
|
95
|
68
|
42
|
38
|
48
|
40
|
43
|
30
|
39
|
24
|
61
|
76
|
89
|
79
|
79
|
52
|
|||
|
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
|
|
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