Air Quality
Excellent
No health implications.
4
PM2.5
9
PM10
14
O3
0.2
CO
4
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 May
42
Excellent
Sat
23 May
49
Excellent
Sun
24 May
58
Good
Mon
25 May
65
Good
Tue
26 May
65
Good
Wed
27 May
51
Good
Thu
28 May
41
Excellent
Air quality in the last 12 months (Gulou)
|
2026/04
|
29
|
34
|
29
|
27
|
34
|
44
|
35
|
39
|
40
|
48
|
38
|
45
|
35
|
51
|
31
|
37
|
37
|
35
|
42
|
48
|
32
|
32
|
21
|
23
|
40
|
44
|
48
|
61
|
30
|
22
|
|
|
2026/03
|
23
|
26
|
26
|
29
|
19
|
32
|
39
|
42
|
38
|
39
|
41
|
42
|
40
|
37
|
35
|
37
|
43
|
52
|
25
|
41
|
35
|
45
|
39
|
28
|
43
|
32
|
32
|
35
|
45
|
55
|
41
|
|
2026/02
|
22
|
43
|
52
|
42
|
44
|
54
|
14
|
34
|
36
|
36
|
45
|
53
|
49
|
54
|
57
|
38
|
48
|
43
|
48
|
47
|
52
|
49
|
76
|
63
|
22
|
24
|
20
|
17
|
|||
|
2026/01
|
32
|
21
|
30
|
37
|
40
|
27
|
44
|
47
|
54
|
49
|
57
|
60
|
50
|
49
|
46
|
51
|
55
|
39
|
40
|
20
|
28
|
42
|
43
|
44
|
41
|
38
|
26
|
26
|
39
|
27
|
18
|
|
2025/12
|
39
|
48
|
55
|
44
|
35
|
36
|
39
|
43
|
53
|
40
|
39
|
59
|
40
|
32
|
46
|
42
|
43
|
73
|
58
|
49
|
74
|
33
|
40
|
47
|
20
|
31
|
35
|
32
|
34
|
39
|
41
|
|
2025/11
|
25
|
43
|
51
|
13
|
15
|
26
|
37
|
39
|
28
|
35
|
31
|
11
|
13
|
30
|
46
|
43
|
34
|
21
|
25
|
33
|
35
|
43
|
46
|
45
|
48
|
84
|
61
|
85
|
76
|
57
|
|
|
2025/10
|
28
|
20
|
22
|
27
|
33
|
37
|
25
|
28
|
29
|
32
|
32
|
30
|
40
|
32
|
21
|
25
|
35
|
28
|
19
|
17
|
13
|
16
|
26
|
26
|
30
|
43
|
40
|
25
|
28
|
36
|
29
|
|
2025/09
|
32
|
26
|
27
|
35
|
29
|
16
|
21
|
21
|
21
|
31
|
23
|
36
|
42
|
32
|
23
|
15
|
16
|
15
|
15
|
19
|
17
|
22
|
17
|
23
|
19
|
18
|
20
|
23
|
28
|
35
|
|
|
2025/08
|
34
|
25
|
26
|
23
|
18
|
31
|
40
|
43
|
43
|
30
|
31
|
26
|
20
|
18
|
12
|
13
|
15
|
20
|
30
|
25
|
25
|
27
|
35
|
30
|
15
|
15
|
13
|
16
|
16
|
15
|
23
|
|
2025/07
|
16
|
18
|
25
|
23
|
21
|
16
|
19
|
27
|
23
|
17
|
14
|
22
|
29
|
22
|
32
|
36
|
43
|
18
|
16
|
14
|
10
|
14
|
17
|
16
|
21
|
17
|
14
|
21
|
20
|
25
|
32
|
|
2025/06
|
42
|
46
|
14
|
27
|
34
|
35
|
28
|
35
|
25
|
22
|
26
|
14
|
14
|
23
|
22
|
23
|
36
|
34
|
18
|
21
|
22
|
25
|
33
|
33
|
32
|
29
|
29
|
31
|
31
|
20
|
|
|
2025/05
|
49
|
49
|
60
|
53
|
43
|
50
|
56
|
49
|
40
|
28
|
35
|
36
|
36
|
34
|
42
|
38
|
34
|
29
|
31
|
42
|
31
|
23
|
48
|
11
|
53
|
43
|
41
|
18
|
14
|
28
|
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