Air Quality
Excellent
No health implications.
5
PM2.5
11
PM10
20
O3
0.5
CO
4
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
64
Good
Sun
24 May
53
Good
Mon
25 May
55
Good
Tue
26 May
45
Excellent
Wed
27 May
47
Excellent
Thu
28 May
18
Excellent
Fri
29 May
21
Excellent
Air quality in the last 12 months (Longyou)
|
2026/04
|
27
|
41
|
28
|
31
|
64
|
63
|
54
|
35
|
49
|
33
|
43
|
34
|
55
|
48
|
49
|
53
|
41
|
63
|
56
|
65
|
45
|
18
|
15
|
31
|
46
|
47
|
54
|
62
|
23
|
28
|
|
|
2026/03
|
24
|
15
|
31
|
66
|
40
|
54
|
64
|
59
|
64
|
54
|
53
|
53
|
65
|
63
|
66
|
66
|
60
|
52
|
25
|
62
|
50
|
37
|
32
|
25
|
34
|
58
|
39
|
43
|
31
|
41
|
22
|
|
2026/02
|
39
|
49
|
72
|
75
|
94
|
43
|
22
|
46
|
43
|
49
|
50
|
61
|
67
|
52
|
40
|
19
|
62
|
45
|
43
|
37
|
33
|
45
|
144
|
49
|
26
|
31
|
12
|
18
|
|||
|
2026/01
|
22
|
34
|
92
|
95
|
64
|
61
|
55
|
56
|
62
|
56
|
68
|
69
|
60
|
65
|
69
|
79
|
115
|
110
|
65
|
15
|
41
|
67
|
90
|
98
|
113
|
110
|
33
|
97
|
75
|
32
|
15
|
|
2025/12
|
92
|
132
|
57
|
61
|
64
|
82
|
96
|
102
|
70
|
61
|
73
|
77
|
39
|
45
|
60
|
64
|
88
|
162
|
135
|
98
|
64
|
48
|
57
|
41
|
36
|
56
|
61
|
66
|
65
|
110
|
53
|
|
2025/11
|
46
|
58
|
61
|
38
|
46
|
50
|
37
|
54
|
12
|
49
|
33
|
33
|
42
|
60
|
86
|
73
|
60
|
29
|
37
|
45
|
58
|
74
|
67
|
52
|
76
|
96
|
89
|
95
|
72
|
68
|
|
|
2025/10
|
38
|
34
|
37
|
49
|
31
|
36
|
49
|
50
|
36
|
40
|
45
|
51
|
49
|
29
|
37
|
31
|
37
|
28
|
18
|
27
|
29
|
29
|
29
|
40
|
51
|
55
|
44
|
60
|
44
|
37
|
40
|
|
2025/09
|
31
|
27
|
29
|
36
|
34
|
28
|
29
|
24
|
21
|
16
|
21
|
23
|
26
|
19
|
29
|
30
|
25
|
28
|
21
|
25
|
26
|
32
|
29
|
19
|
27
|
28
|
32
|
35
|
42
|
44
|
|
|
2025/08
|
37
|
42
|
35
|
31
|
21
|
19
|
22
|
26
|
29
|
36
|
37
|
32
|
15
|
14
|
16
|
22
|
21
|
24
|
26
|
26
|
26
|
22
|
20
|
28
|
26
|
28
|
25
|
18
|
20
|
25
|
29
|
|
2025/07
|
15
|
21
|
30
|
36
|
26
|
18
|
19
|
19
|
19
|
27
|
22
|
21
|
26
|
31
|
35
|
44
|
36
|
28
|
20
|
17
|
15
|
21
|
23
|
26
|
24
|
14
|
19
|
17
|
24
|
23
|
24
|
|
2025/06
|
39
|
21
|
19
|
40
|
33
|
37
|
41
|
52
|
31
|
27
|
18
|
23
|
18
|
22
|
12
|
26
|
38
|
24
|
30
|
25
|
25
|
31
|
15
|
15
|
28
|
21
|
27
|
21
|
27
|
27
|
|
|
2025/05
|
48
|
49
|
54
|
50
|
33
|
58
|
109
|
56
|
21
|
42
|
42
|
46
|
43
|
44
|
69
|
53
|
27
|
50
|
48
|
25
|
17
|
31
|
14
|
33
|
63
|
68
|
65
|
41
|
27
|
40
|
44
|
|
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