Air Quality
Excellent
No health implications.
4
PM2.5
15
PM10
21
O3
0.4
CO
6
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jul
50
Excellent
Mon
28 Jul
48
Excellent
Tue
29 Jul
50
Excellent
Wed
30 Jul
49
Excellent
Thu
31 Jul
48
Excellent
Fri
1 Aug
51
Good
Sat
2 Aug
36
Excellent
Air quality in the last 12 months (Gulou)
|
2025/06
|
12
|
11
|
41
|
60
|
47
|
43
|
19
|
21
|
27
|
35
|
43
|
31
|
29
|
38
|
23
|
44
|
47
|
35
|
11
|
16
|
9
|
21
|
35
|
22
|
26
|
41
|
19
|
14
|
12
|
20
|
|
|
2025/05
|
56
|
63
|
52
|
39
|
38
|
93
|
72
|
46
|
25
|
37
|
43
|
53
|
48
|
57
|
74
|
33
|
63
|
79
|
69
|
52
|
29
|
48
|
39
|
52
|
54
|
53
|
46
|
47
|
52
|
50
|
55
|
|
2025/04
|
46
|
61
|
33
|
61
|
79
|
66
|
66
|
66
|
83
|
79
|
77
|
225
|
105
|
84
|
50
|
59
|
69
|
69
|
80
|
54
|
58
|
62
|
63
|
74
|
67
|
56
|
46
|
58
|
58
|
60
|
|
|
2025/03
|
56
|
58
|
20
|
32
|
50
|
49
|
59
|
78
|
71
|
55
|
84
|
113
|
64
|
38
|
30
|
41
|
34
|
40
|
50
|
51
|
44
|
54
|
63
|
72
|
66
|
63
|
116
|
58
|
112
|
74
|
29
|
|
2025/02
|
35
|
60
|
81
|
73
|
50
|
40
|
61
|
32
|
39
|
52
|
54
|
100
|
65
|
69
|
96
|
92
|
68
|
50
|
61
|
51
|
44
|
63
|
74
|
66
|
84
|
107
|
91
|
67
|
|||
|
2025/01
|
76
|
82
|
88
|
78
|
96
|
81
|
47
|
61
|
36
|
46
|
60
|
64
|
76
|
96
|
68
|
58
|
65
|
77
|
101
|
104
|
121
|
132
|
71
|
50
|
28
|
64
|
52
|
43
|
65
|
54
|
70
|
|
2024/12
|
64
|
75
|
72
|
44
|
76
|
124
|
138
|
37
|
48
|
50
|
50
|
61
|
87
|
64
|
59
|
59
|
74
|
67
|
42
|
55
|
84
|
59
|
58
|
64
|
99
|
114
|
56
|
69
|
66
|
69
|
102
|
|
2024/11
|
25
|
54
|
55
|
62
|
46
|
41
|
28
|
25
|
43
|
37
|
53
|
52
|
63
|
58
|
83
|
45
|
31
|
32
|
29
|
31
|
51
|
75
|
33
|
34
|
31
|
39
|
67
|
62
|
44
|
58
|
|
|
2024/10
|
24
|
35
|
24
|
26
|
27
|
14
|
12
|
31
|
35
|
54
|
62
|
70
|
44
|
42
|
62
|
62
|
36
|
23
|
29
|
34
|
31
|
35
|
55
|
45
|
41
|
27
|
32
|
86
|
45
|
38
|
36
|
|
2024/09
|
42
|
41
|
27
|
31
|
31
|
41
|
41
|
44
|
23
|
30
|
12
|
18
|
30
|
32
|
25
|
18
|
16
|
21
|
23
|
13
|
25
|
28
|
28
|
34
|
40
|
42
|
35
|
31
|
41
|
41
|
|
|
2024/08
|
19
|
20
|
27
|
31
|
27
|
35
|
40
|
37
|
37
|
37
|
42
|
49
|
34
|
30
|
22
|
28
|
33
|
31
|
20
|
15
|
26
|
38
|
41
|
42
|
40
|
40
|
24
|
18
|
25
|
30
|
43
|
|
2024/07
|
9
|
15
|
27
|
19
|
21
|
21
|
24
|
22
|
24
|
27
|
47
|
14
|
13
|
14
|
22
|
41
|
24
|
23
|
26
|
22
|
19
|
25
|
34
|
24
|
24
|
22
|
13
|
14
|
19
|
31
|
25
|
|
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