Air Quality
Excellent
No health implications.
22
PM2.5
43
PM10
91
O3
0.7
CO
7
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 May
78
Good
Fri
16 May
90
Good
Sat
17 May
107
Light
Sun
18 May
111
Light
Mon
19 May
109
Light
Tue
20 May
98
Good
Wed
21 May
47
Excellent
Air quality in the last 12 months (Xiaonan)
|
2025/02
|
85
|
79
|
104
|
100
|
68
|
51
|
94
|
58
|
67
|
82
|
90
|
107
|
99
|
112
|
103
|
111
|
77
|
66
|
103
|
105
|
84
|
98
|
131
|
140
|
132
|
107
|
74
|
95
|
|||
|
2025/01
|
159
|
176
|
180
|
218
|
94
|
93
|
68
|
75
|
64
|
64
|
96
|
97
|
125
|
138
|
78
|
77
|
102
|
121
|
192
|
152
|
162
|
162
|
209
|
87
|
25
|
49
|
70
|
78
|
210
|
93
|
135
|
|
2024/12
|
83
|
99
|
127
|
88
|
69
|
66
|
64
|
66
|
57
|
89
|
86
|
111
|
95
|
62
|
71
|
85
|
108
|
89
|
90
|
127
|
99
|
58
|
74
|
105
|
138
|
146
|
178
|
64
|
78
|
138
|
151
|
|
2024/11
|
121
|
117
|
128
|
103
|
61
|
72
|
67
|
74
|
72
|
58
|
68
|
71
|
58
|
69
|
99
|
59
|
31
|
31
|
30
|
42
|
57
|
72
|
98
|
85
|
40
|
39
|
57
|
64
|
67
|
74
|
|
|
2024/10
|
38
|
62
|
48
|
54
|
71
|
48
|
23
|
40
|
69
|
115
|
98
|
83
|
67
|
67
|
103
|
54
|
30
|
20
|
32
|
44
|
26
|
32
|
56
|
64
|
52
|
53
|
108
|
145
|
102
|
87
|
54
|
|
2024/09
|
42
|
49
|
35
|
40
|
48
|
38
|
41
|
44
|
46
|
40
|
48
|
26
|
20
|
30
|
42
|
32
|
39
|
32
|
21
|
29
|
41
|
37
|
40
|
45
|
75
|
61
|
67
|
43
|
41
|
48
|
|
|
2024/08
|
13
|
15
|
19
|
19
|
20
|
23
|
23
|
29
|
26
|
33
|
91
|
74
|
31
|
32
|
24
|
21
|
25
|
39
|
26
|
21
|
22
|
36
|
27
|
31
|
27
|
35
|
20
|
21
|
30
|
33
|
40
|
|
2024/07
|
25
|
26
|
24
|
18
|
17
|
16
|
20
|
20
|
20
|
16
|
22
|
31
|
12
|
11
|
30
|
32
|
24
|
16
|
17
|
17
|
20
|
21
|
22
|
34
|
27
|
18
|
14
|
10
|
11
|
17
|
14
|
|
2024/06
|
41
|
43
|
35
|
35
|
32
|
45
|
38
|
41
|
32
|
25
|
25
|
30
|
39
|
37
|
37
|
40
|
39
|
37
|
13
|
22
|
19
|
21
|
24
|
30
|
19
|
35
|
18
|
11
|
14
|
18
|
|
|
2024/05
|
55
|
51
|
39
|
33
|
46
|
43
|
52
|
51
|
60
|
54
|
76
|
131
|
103
|
76
|
87
|
62
|
68
|
62
|
69
|
46
|
50
|
30
|
25
|
43
|
39
|
42
|
41
|
32
|
43
|
42
|
48
|
|
2024/04
|
46
|
30
|
71
|
68
|
60
|
43
|
57
|
51
|
41
|
50
|
50
|
45
|
50
|
51
|
59
|
40
|
54
|
52
|
35
|
56
|
76
|
71
|
78
|
116
|
109
|
90
|
63
|
44
|
41
|
53
|
|
|
2024/03
|
89
|
83
|
60
|
51
|
144
|
101
|
91
|
79
|
74
|
105
|
89
|
81
|
75
|
61
|
67
|
104
|
92
|
71
|
71
|
80
|
68
|
69
|
59
|
33
|
38
|
48
|
47
|
67
|
46
|
57
|
66
|
|
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