Air Quality
Excellent
No health implications.
15
PM2.5
27
PM10
69
O3
0.4
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Apr
42
Excellent
Fri
26 Apr
52
Good
Sat
27 Apr
50
Excellent
Sun
28 Apr
49
Excellent
Mon
29 Apr
44
Excellent
Tue
30 Apr
43
Excellent
Wed
1 May
46
Excellent
Air quality in the last 12 months (Xianfeng)
|
2024/02
|
45
|
27
|
30
|
31
|
40
|
43
|
51
|
70
|
85
|
179
|
84
|
65
|
68
|
81
|
59
|
35
|
48
|
61
|
71
|
40
|
21
|
27
|
33
|
29
|
39
|
56
|
66
|
68
|
73
|
||
|
2024/01
|
63
|
58
|
43
|
56
|
89
|
101
|
75
|
66
|
63
|
68
|
73
|
81
|
89
|
105
|
88
|
39
|
30
|
27
|
27
|
27
|
44
|
38
|
48
|
57
|
58
|
45
|
51
|
58
|
75
|
74
|
71
|
|
2023/12
|
43
|
37
|
43
|
45
|
52
|
59
|
59
|
73
|
97
|
99
|
40
|
23
|
17
|
25
|
25
|
32
|
36
|
36
|
47
|
50
|
74
|
82
|
74
|
76
|
81
|
88
|
92
|
109
|
147
|
101
|
70
|
|
2023/11
|
39
|
45
|
50
|
29
|
32
|
29
|
26
|
31
|
38
|
25
|
21
|
25
|
25
|
33
|
33
|
35
|
52
|
55
|
60
|
53
|
51
|
62
|
70
|
60
|
56
|
64
|
51
|
53
|
51
|
49
|
|
|
2023/10
|
19
|
17
|
15
|
16
|
22
|
25
|
21
|
24
|
29
|
31
|
37
|
40
|
44
|
37
|
37
|
40
|
44
|
52
|
60
|
24
|
32
|
41
|
47
|
57
|
36
|
20
|
23
|
26
|
30
|
28
|
33
|
|
2023/09
|
44
|
45
|
40
|
37
|
44
|
45
|
41
|
38
|
35
|
36
|
43
|
23
|
21
|
27
|
35
|
32
|
30
|
31
|
28
|
24
|
19
|
16
|
15
|
12
|
17
|
19
|
21
|
28
|
27
|
19
|
|
|
2023/08
|
22
|
19
|
20
|
23
|
22
|
20
|
23
|
25
|
25
|
25
|
28
|
32
|
24
|
24
|
28
|
30
|
31
|
36
|
34
|
32
|
32
|
31
|
34
|
40
|
40
|
29
|
17
|
20
|
24
|
30
|
36
|
|
2023/07
|
17
|
24
|
28
|
25
|
23
|
25
|
27
|
20
|
15
|
17
|
26
|
28
|
28
|
23
|
33
|
35
|
37
|
33
|
25
|
17
|
17
|
23
|
26
|
23
|
15
|
13
|
18
|
21
|
20
|
22
|
22
|
|
2023/06
|
23
|
27
|
40
|
43
|
19
|
19
|
21
|
24
|
32
|
39
|
45
|
36
|
32
|
27
|
28
|
25
|
15
|
16
|
21
|
28
|
21
|
26
|
23
|
27
|
31
|
31
|
27
|
20
|
22
|
18
|
|
|
2023/05
|
43
|
39
|
38
|
38
|
25
|
20
|
25
|
31
|
37
|
27
|
28
|
35
|
44
|
48
|
50
|
28
|
29
|
34
|
34
|
35
|
29
|
19
|
22
|
29
|
30
|
22
|
23
|
33
|
31
|
29
|
22
|
|
2023/04
|
40
|
51
|
43
|
28
|
20
|
25
|
38
|
63
|
66
|
63
|
59
|
69
|
66
|
46
|
48
|
46
|
49
|
52
|
33
|
42
|
40
|
25
|
21
|
20
|
26
|
31
|
34
|
35
|
51
|
54
|
|
|
2023/03
|
78
|
64
|
65
|
56
|
51
|
59
|
50
|
35
|
40
|
37
|
34
|
46
|
36
|
33
|
41
|
71
|
25
|
21
|
22
|
24
|
25
|
23
|
24
|
22
|
23
|
34
|
40
|
34
|
39
|
34
|
33
|
|
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