Air Quality
Excellent
No health implications.
5
PM2.5
9
PM10
22
O3
0.5
CO
4
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 May
35
Excellent
Mon
18 May
32
Excellent
Tue
19 May
37
Excellent
Wed
20 May
40
Excellent
Thu
21 May
38
Excellent
Fri
22 May
32
Excellent
Sat
23 May
32
Excellent
Air quality in the last 12 months (Xianfeng)
|
2026/04
|
27
|
30
|
34
|
48
|
46
|
33
|
32
|
28
|
39
|
40
|
29
|
28
|
25
|
19
|
20
|
27
|
31
|
38
|
37
|
40
|
29
|
23
|
21
|
32
|
47
|
48
|
27
|
25
|
30
|
36
|
|
|
2026/03
|
21
|
20
|
22
|
31
|
37
|
46
|
44
|
20
|
24
|
32
|
37
|
49
|
52
|
58
|
31
|
23
|
20
|
19
|
36
|
44
|
35
|
37
|
36
|
23
|
21
|
22
|
24
|
31
|
29
|
22
|
29
|
|
2026/02
|
39
|
54
|
69
|
81
|
102
|
89
|
92
|
66
|
54
|
53
|
54
|
61
|
67
|
68
|
71
|
39
|
71
|
64
|
55
|
52
|
53
|
53
|
41
|
28
|
35
|
25
|
20
|
22
|
|||
|
2026/01
|
26
|
45
|
60
|
62
|
61
|
54
|
60
|
69
|
74
|
88
|
79
|
72
|
100
|
118
|
152
|
141
|
142
|
160
|
57
|
28
|
52
|
59
|
67
|
61
|
55
|
52
|
61
|
68
|
46
|
21
|
33
|
|
2025/12
|
88
|
104
|
74
|
74
|
81
|
72
|
85
|
66
|
79
|
96
|
96
|
112
|
32
|
45
|
54
|
61
|
73
|
76
|
96
|
85
|
37
|
31
|
25
|
38
|
45
|
47
|
63
|
67
|
88
|
115
|
47
|
|
2025/11
|
36
|
34
|
33
|
32
|
33
|
19
|
18
|
17
|
17
|
39
|
43
|
38
|
36
|
43
|
51
|
54
|
42
|
20
|
25
|
32
|
40
|
51
|
59
|
44
|
50
|
53
|
58
|
72
|
82
|
90
|
|
|
2025/10
|
21
|
26
|
27
|
23
|
25
|
30
|
28
|
32
|
33
|
32
|
36
|
44
|
21
|
10
|
14
|
10
|
11
|
11
|
9
|
12
|
14
|
17
|
21
|
28
|
39
|
33
|
28
|
34
|
42
|
35
|
30
|
|
2025/09
|
25
|
23
|
25
|
23
|
28
|
33
|
23
|
26
|
19
|
15
|
14
|
22
|
12
|
12
|
18
|
23
|
23
|
20
|
17
|
15
|
23
|
23
|
17
|
14
|
19
|
17
|
18
|
22
|
31
|
28
|
|
|
2025/08
|
24
|
27
|
26
|
25
|
26
|
24
|
20
|
16
|
20
|
19
|
11
|
8
|
10
|
17
|
14
|
14
|
17
|
22
|
21
|
13
|
15
|
16
|
18
|
19
|
16
|
19
|
24
|
26
|
28
|
26
|
25
|
|
2025/07
|
15
|
19
|
15
|
16
|
15
|
18
|
23
|
23
|
22
|
21
|
23
|
28
|
27
|
22
|
23
|
22
|
20
|
18
|
21
|
24
|
18
|
17
|
10
|
11
|
13
|
16
|
20
|
16
|
19
|
19
|
21
|
|
2025/06
|
12
|
17
|
26
|
32
|
31
|
37
|
29
|
21
|
19
|
27
|
36
|
36
|
34
|
28
|
31
|
31
|
25
|
18
|
10
|
11
|
12
|
18
|
17
|
23
|
13
|
14
|
18
|
17
|
14
|
17
|
|
|
2025/05
|
46
|
63
|
54
|
50
|
34
|
36
|
48
|
25
|
28
|
33
|
43
|
39
|
41
|
49
|
40
|
43
|
43
|
40
|
43
|
42
|
45
|
21
|
38
|
53
|
47
|
39
|
40
|
29
|
36
|
35
|
21
|
|
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