Air Quality
Excellent
No health implications.
3
PM2.5
11
PM10
22
O3
0.5
CO
3
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Mar
57
Good
Mon
17 Mar
60
Good
Tue
18 Mar
76
Good
Wed
19 Mar
60
Good
Thu
20 Mar
68
Good
Fri
21 Mar
79
Good
Sat
22 Mar
50
Excellent
Air quality in the last 12 months (Gulou)
|
2025/02
|
36
|
12
|
14
|
54
|
59
|
31
|
16
|
53
|
30
|
37
|
49
|
90
|
77
|
85
|
65
|
79
|
84
|
45
|
37
|
10
|
12
|
30
|
12
|
63
|
75
|
63
|
66
|
56
|
|||
|
2025/01
|
70
|
53
|
42
|
40
|
40
|
52
|
68
|
58
|
59
|
46
|
32
|
44
|
50
|
51
|
77
|
57
|
51
|
47
|
41
|
47
|
71
|
56
|
54
|
22
|
28
|
31
|
17
|
40
|
120
|
43
|
36
|
|
2024/12
|
41
|
47
|
32
|
46
|
45
|
37
|
23
|
63
|
36
|
41
|
34
|
17
|
19
|
53
|
75
|
57
|
47
|
47
|
45
|
24
|
40
|
61
|
34
|
25
|
34
|
59
|
74
|
86
|
44
|
43
|
56
|
|
2024/11
|
12
|
20
|
39
|
45
|
51
|
42
|
35
|
35
|
43
|
43
|
23
|
33
|
32
|
34
|
21
|
14
|
19
|
19
|
18
|
17
|
19
|
28
|
34
|
31
|
18
|
18
|
32
|
30
|
40
|
43
|
|
|
2024/10
|
11
|
9
|
20
|
16
|
16
|
24
|
16
|
13
|
29
|
43
|
45
|
40
|
33
|
38
|
33
|
27
|
38
|
39
|
29
|
22
|
32
|
29
|
32
|
38
|
27
|
23
|
26
|
14
|
40
|
47
|
18
|
|
2024/09
|
40
|
33
|
16
|
15
|
16
|
8
|
8
|
8
|
15
|
35
|
48
|
40
|
9
|
11
|
20
|
21
|
17
|
25
|
20
|
23
|
24
|
8
|
11
|
16
|
20
|
12
|
20
|
26
|
29
|
15
|
|
|
2024/08
|
27
|
36
|
44
|
39
|
39
|
30
|
26
|
34
|
26
|
38
|
37
|
42
|
29
|
19
|
17
|
17
|
16
|
18
|
15
|
9
|
17
|
22
|
27
|
38
|
28
|
31
|
45
|
39
|
26
|
38
|
43
|
|
2024/07
|
25
|
26
|
27
|
26
|
37
|
30
|
23
|
24
|
23
|
27
|
30
|
30
|
33
|
41
|
30
|
24
|
30
|
24
|
31
|
39
|
22
|
14
|
17
|
12
|
5
|
10
|
12
|
20
|
15
|
18
|
18
|
|
2024/06
|
9
|
6
|
18
|
31
|
26
|
18
|
30
|
31
|
25
|
35
|
22
|
21
|
19
|
23
|
22
|
16
|
21
|
20
|
25
|
21
|
22
|
31
|
35
|
23
|
30
|
30
|
29
|
25
|
19
|
22
|
|
|
2024/05
|
18
|
20
|
29
|
34
|
37
|
31
|
43
|
48
|
32
|
30
|
47
|
44
|
21
|
28
|
35
|
34
|
27
|
28
|
25
|
21
|
8
|
13
|
30
|
40
|
30
|
31
|
16
|
17
|
25
|
40
|
42
|
|
2024/04
|
39
|
54
|
49
|
29
|
18
|
39
|
22
|
36
|
25
|
54
|
54
|
66
|
56
|
44
|
66
|
64
|
54
|
32
|
66
|
66
|
32
|
40
|
34
|
29
|
68
|
61
|
53
|
28
|
44
|
31
|
|
|
2024/03
|
16
|
29
|
37
|
48
|
62
|
26
|
40
|
64
|
69
|
51
|
26
|
38
|
74
|
72
|
51
|
49
|
46
|
52
|
40
|
52
|
61
|
64
|
73
|
57
|
49
|
23
|
34
|
47
|
37
|
50
|
42
|
|
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