Air Quality
Excellent
No health implications.
21
PM2.5
38
PM10
119
O3
0.3
CO
4
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 May
64
Good
Wed
14 May
62
Good
Thu
15 May
72
Good
Fri
16 May
71
Good
Sat
17 May
66
Good
Sun
18 May
79
Good
Mon
19 May
31
Excellent
Air quality in the last 12 months (Yilong)
|
2025/02
|
65
|
47
|
39
|
51
|
47
|
34
|
35
|
36
|
52
|
61
|
70
|
65
|
47
|
47
|
51
|
62
|
58
|
53
|
60
|
50
|
41
|
46
|
34
|
42
|
46
|
66
|
69
|
67
|
|||
|
2025/01
|
114
|
131
|
156
|
99
|
56
|
83
|
78
|
56
|
66
|
63
|
56
|
72
|
82
|
92
|
83
|
68
|
87
|
84
|
107
|
110
|
117
|
159
|
191
|
93
|
24
|
66
|
70
|
79
|
218
|
141
|
83
|
|
2024/12
|
68
|
76
|
88
|
58
|
32
|
29
|
33
|
36
|
40
|
56
|
54
|
57
|
46
|
54
|
74
|
85
|
99
|
121
|
101
|
81
|
92
|
89
|
81
|
77
|
90
|
99
|
88
|
64
|
97
|
112
|
121
|
|
2024/11
|
27
|
27
|
42
|
39
|
32
|
43
|
56
|
65
|
34
|
35
|
38
|
39
|
39
|
37
|
39
|
21
|
12
|
11
|
16
|
24
|
31
|
41
|
40
|
31
|
17
|
38
|
44
|
54
|
67
|
75
|
|
|
2024/10
|
23
|
35
|
37
|
41
|
52
|
50
|
42
|
45
|
43
|
51
|
44
|
31
|
31
|
35
|
37
|
47
|
32
|
30
|
35
|
14
|
16
|
28
|
40
|
46
|
44
|
42
|
26
|
45
|
53
|
60
|
36
|
|
2024/09
|
48
|
51
|
41
|
40
|
37
|
42
|
35
|
34
|
32
|
26
|
27
|
35
|
41
|
40
|
42
|
36
|
42
|
44
|
46
|
41
|
21
|
27
|
34
|
50
|
55
|
69
|
79
|
62
|
40
|
13
|
|
|
2024/08
|
34
|
35
|
30
|
20
|
20
|
30
|
32
|
36
|
29
|
38
|
59
|
57
|
55
|
50
|
33
|
32
|
38
|
36
|
45
|
50
|
47
|
52
|
49
|
48
|
44
|
41
|
45
|
37
|
36
|
42
|
40
|
|
2024/07
|
22
|
30
|
28
|
26
|
17
|
27
|
27
|
22
|
19
|
15
|
15
|
25
|
23
|
18
|
24
|
29
|
28
|
21
|
22
|
20
|
27
|
29
|
28
|
39
|
60
|
55
|
44
|
39
|
32
|
25
|
31
|
|
2024/06
|
52
|
27
|
32
|
21
|
28
|
31
|
31
|
23
|
26
|
34
|
37
|
31
|
42
|
44
|
49
|
29
|
24
|
25
|
23
|
22
|
17
|
30
|
45
|
48
|
30
|
27
|
21
|
22
|
33
|
40
|
|
|
2024/05
|
24
|
20
|
21
|
26
|
53
|
82
|
104
|
68
|
58
|
43
|
59
|
71
|
60
|
63
|
55
|
57
|
61
|
73
|
27
|
22
|
31
|
38
|
44
|
44
|
40
|
21
|
37
|
36
|
22
|
33
|
50
|
|
2024/04
|
38
|
37
|
51
|
44
|
24
|
26
|
27
|
41
|
33
|
27
|
33
|
36
|
46
|
44
|
58
|
40
|
36
|
37
|
53
|
84
|
72
|
46
|
40
|
41
|
43
|
50
|
50
|
40
|
28
|
14
|
|
|
2024/03
|
58
|
58
|
64
|
74
|
74
|
57
|
54
|
69
|
54
|
60
|
69
|
64
|
49
|
55
|
62
|
65
|
59
|
30
|
53
|
61
|
65
|
66
|
69
|
40
|
25
|
40
|
38
|
48
|
53
|
51
|
43
|
|
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