Air Quality
Excellent
No health implications.
2
PM2.5
3
PM10
85
O3
0.5
CO
4
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
46
Excellent
Wed
1 May
98
Good
Thu
2 May
101
Lightly
Fri
3 May
98
Good
Sat
4 May
71
Good
Sun
5 May
55
Good
Mon
6 May
58
Good
Air quality in the last 12 months (Longyou)
|
2024/02
|
36
|
19
|
16
|
19
|
19
|
33
|
37
|
79
|
104
|
134
|
69
|
54
|
52
|
52
|
37
|
23
|
30
|
48
|
51
|
34
|
20
|
11
|
17
|
25
|
38
|
77
|
97
|
61
|
25
|
||
|
2024/01
|
169
|
146
|
73
|
58
|
60
|
61
|
187
|
163
|
125
|
66
|
106
|
63
|
66
|
68
|
125
|
77
|
69
|
93
|
36
|
20
|
45
|
43
|
34
|
44
|
54
|
73
|
78
|
80
|
93
|
73
|
67
|
|
2023/12
|
48
|
57
|
76
|
84
|
62
|
65
|
66
|
62
|
60
|
65
|
58
|
21
|
59
|
70
|
51
|
28
|
53
|
46
|
33
|
49
|
59
|
50
|
53
|
65
|
64
|
81
|
84
|
120
|
210
|
148
|
105
|
|
2023/11
|
52
|
48
|
48
|
59
|
54
|
25
|
43
|
58
|
56
|
20
|
19
|
21
|
47
|
54
|
70
|
49
|
76
|
76
|
62
|
62
|
56
|
62
|
62
|
79
|
57
|
67
|
67
|
65
|
70
|
73
|
|
|
2023/10
|
29
|
36
|
45
|
33
|
36
|
35
|
20
|
20
|
38
|
46
|
51
|
49
|
52
|
49
|
55
|
61
|
61
|
63
|
66
|
25
|
34
|
43
|
40
|
41
|
66
|
87
|
78
|
82
|
57
|
60
|
55
|
|
2023/09
|
45
|
45
|
42
|
36
|
30
|
37
|
42
|
43
|
47
|
52
|
54
|
53
|
30
|
19
|
25
|
20
|
29
|
36
|
40
|
35
|
20
|
26
|
22
|
40
|
53
|
51
|
54
|
52
|
48
|
32
|
|
|
2023/08
|
34
|
29
|
30
|
34
|
44
|
44
|
38
|
43
|
44
|
43
|
51
|
45
|
28
|
37
|
40
|
43
|
37
|
44
|
29
|
28
|
35
|
23
|
27
|
50
|
51
|
29
|
24
|
24
|
18
|
31
|
33
|
|
2023/07
|
50
|
31
|
30
|
33
|
33
|
34
|
35
|
38
|
41
|
41
|
47
|
41
|
42
|
42
|
41
|
33
|
32
|
33
|
30
|
24
|
30
|
24
|
25
|
31
|
34
|
24
|
21
|
13
|
18
|
26
|
27
|
|
2023/06
|
53
|
60
|
81
|
70
|
51
|
52
|
44
|
24
|
40
|
45
|
62
|
78
|
58
|
61
|
66
|
52
|
42
|
34
|
28
|
24
|
32
|
45
|
30
|
21
|
22
|
24
|
33
|
31
|
31
|
37
|
|
|
2023/05
|
62
|
44
|
39
|
46
|
32
|
32
|
23
|
40
|
50
|
57
|
59
|
60
|
54
|
58
|
64
|
61
|
40
|
36
|
51
|
71
|
63
|
33
|
77
|
64
|
55
|
51
|
37
|
37
|
42
|
57
|
61
|
|
2023/04
|
62
|
54
|
42
|
40
|
52
|
43
|
41
|
57
|
57
|
59
|
64
|
134
|
109
|
64
|
53
|
77
|
74
|
68
|
39
|
36
|
42
|
62
|
45
|
25
|
32
|
35
|
47
|
61
|
44
|
70
|
|
|
2023/03
|
69
|
88
|
93
|
83
|
67
|
64
|
63
|
66
|
74
|
58
|
56
|
67
|
72
|
58
|
61
|
90
|
56
|
44
|
47
|
44
|
57
|
47
|
34
|
30
|
36
|
47
|
91
|
88
|
61
|
26
|
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