Air Quality
Excellent
No health implications.
30
PM2.5
41
PM10
49
O3
0.8
CO
13
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
43
Excellent
Sun
5 May
42
Excellent
Mon
6 May
69
Good
Tue
7 May
66
Good
Wed
8 May
65
Good
Thu
9 May
79
Good
Air quality in the last 12 months (Yongfeng)
|
2024/02
|
35
|
17
|
16
|
17
|
37
|
27
|
37
|
60
|
79
|
164
|
87
|
65
|
52
|
53
|
37
|
22
|
29
|
29
|
30
|
28
|
22
|
15
|
23
|
31
|
40
|
45
|
66
|
38
|
29
|
||
|
2024/01
|
77
|
97
|
52
|
51
|
57
|
57
|
71
|
88
|
58
|
58
|
53
|
49
|
53
|
58
|
140
|
103
|
85
|
79
|
26
|
19
|
44
|
38
|
34
|
38
|
46
|
51
|
54
|
56
|
50
|
32
|
49
|
|
2023/12
|
46
|
41
|
43
|
46
|
34
|
49
|
45
|
45
|
49
|
51
|
41
|
21
|
33
|
34
|
26
|
33
|
40
|
32
|
33
|
44
|
62
|
48
|
49
|
52
|
54
|
57
|
63
|
77
|
107
|
102
|
110
|
|
2023/11
|
49
|
42
|
48
|
58
|
60
|
28
|
34
|
31
|
31
|
31
|
19
|
22
|
43
|
44
|
45
|
39
|
65
|
59
|
58
|
50
|
46
|
48
|
54
|
63
|
55
|
60
|
59
|
57
|
56
|
62
|
|
|
2023/10
|
34
|
39
|
48
|
37
|
36
|
37
|
22
|
19
|
23
|
31
|
38
|
46
|
53
|
61
|
58
|
54
|
58
|
64
|
47
|
23
|
36
|
36
|
42
|
50
|
74
|
57
|
58
|
60
|
44
|
45
|
57
|
|
2023/09
|
30
|
34
|
39
|
35
|
35
|
30
|
28
|
28
|
32
|
37
|
23
|
23
|
23
|
17
|
21
|
25
|
29
|
29
|
28
|
29
|
31
|
33
|
37
|
45
|
40
|
42
|
47
|
46
|
51
|
59
|
|
|
2023/08
|
18
|
31
|
34
|
40
|
42
|
37
|
38
|
31
|
23
|
36
|
37
|
23
|
24
|
29
|
34
|
33
|
37
|
49
|
48
|
38
|
31
|
20
|
29
|
39
|
44
|
28
|
23
|
20
|
23
|
30
|
27
|
|
2023/07
|
30
|
26
|
18
|
19
|
21
|
24
|
24
|
26
|
31
|
30
|
32
|
32
|
35
|
34
|
41
|
40
|
31
|
24
|
18
|
20
|
21
|
20
|
17
|
23
|
23
|
27
|
27
|
18
|
23
|
25
|
23
|
|
2023/06
|
37
|
41
|
56
|
50
|
33
|
45
|
35
|
19
|
22
|
26
|
37
|
56
|
45
|
43
|
50
|
24
|
22
|
19
|
18
|
27
|
19
|
25
|
24
|
20
|
18
|
20
|
20
|
20
|
18
|
24
|
|
|
2023/05
|
66
|
51
|
29
|
25
|
28
|
20
|
30
|
37
|
36
|
47
|
40
|
37
|
46
|
53
|
47
|
46
|
32
|
32
|
44
|
52
|
29
|
36
|
50
|
49
|
41
|
33
|
32
|
29
|
37
|
44
|
35
|
|
2023/04
|
43
|
43
|
32
|
28
|
25
|
24
|
36
|
56
|
55
|
56
|
46
|
38
|
39
|
42
|
41
|
57
|
58
|
36
|
29
|
41
|
42
|
39
|
21
|
16
|
18
|
25
|
33
|
39
|
58
|
74
|
|
|
2023/03
|
61
|
72
|
81
|
81
|
62
|
52
|
54
|
64
|
68
|
56
|
57
|
68
|
70
|
56
|
57
|
61
|
37
|
28
|
23
|
29
|
45
|
37
|
24
|
22
|
40
|
38
|
42
|
52
|
48
|
40
|
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