Air Quality
Excellent
No health implications.
32
PM2.5
47
PM10
81
O3
0.3
CO
4
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Mar
57
Good
Tue
18 Mar
62
Good
Wed
19 Mar
69
Good
Thu
20 Mar
60
Good
Fri
21 Mar
65
Good
Sat
22 Mar
72
Good
Sun
23 Mar
27
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