Air Quality
Excellent
No health implications.
26
PM2.5
37
PM10
104
O3
0.5
CO
4
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
11 May
86
Good
Mon
12 May
89
Good
Tue
13 May
90
Good
Wed
14 May
54
Good
Thu
15 May
40
Excellent
Fri
16 May
51
Good
Sat
17 May
40
Excellent
Air quality in the last 12 months (Beihu)
|
2025/02
|
22
|
18
|
33
|
50
|
59
|
68
|
51
|
67
|
44
|
58
|
51
|
68
|
101
|
103
|
98
|
41
|
51
|
43
|
39
|
16
|
49
|
27
|
16
|
59
|
87
|
106
|
55
|
42
|
|||
|
2025/01
|
113
|
92
|
147
|
159
|
186
|
131
|
112
|
115
|
76
|
64
|
63
|
68
|
63
|
54
|
104
|
68
|
73
|
66
|
70
|
75
|
74
|
80
|
90
|
226
|
98
|
26
|
49
|
77
|
182
|
91
|
82
|
|
2024/12
|
60
|
62
|
68
|
152
|
95
|
31
|
35
|
65
|
121
|
108
|
44
|
74
|
106
|
94
|
51
|
55
|
61
|
65
|
89
|
102
|
116
|
113
|
98
|
101
|
119
|
139
|
139
|
143
|
87
|
99
|
102
|
|
2024/11
|
66
|
99
|
80
|
80
|
85
|
81
|
52
|
59
|
63
|
94
|
76
|
69
|
74
|
93
|
59
|
71
|
40
|
11
|
13
|
30
|
49
|
61
|
55
|
56
|
64
|
38
|
40
|
46
|
50
|
69
|
|
|
2024/10
|
35
|
40
|
50
|
57
|
53
|
68
|
93
|
68
|
64
|
54
|
58
|
59
|
73
|
141
|
56
|
26
|
39
|
44
|
26
|
34
|
39
|
25
|
33
|
42
|
52
|
74
|
32
|
42
|
68
|
60
|
54
|
|
2024/09
|
31
|
30
|
32
|
33
|
41
|
33
|
20
|
23
|
19
|
35
|
38
|
58
|
37
|
43
|
31
|
35
|
59
|
56
|
53
|
39
|
37
|
32
|
49
|
47
|
42
|
46
|
48
|
47
|
45
|
48
|
|
|
2024/08
|
16
|
20
|
25
|
36
|
37
|
25
|
25
|
28
|
27
|
29
|
34
|
28
|
18
|
18
|
24
|
33
|
25
|
27
|
25
|
35
|
30
|
16
|
19
|
28
|
27
|
27
|
35
|
33
|
39
|
49
|
43
|
|
2024/07
|
17
|
22
|
19
|
15
|
18
|
21
|
19
|
14
|
21
|
19
|
19
|
20
|
17
|
22
|
25
|
14
|
13
|
14
|
12
|
15
|
17
|
19
|
19
|
26
|
42
|
36
|
23
|
11
|
10
|
12
|
11
|
|
2024/06
|
19
|
17
|
40
|
23
|
14
|
33
|
31
|
43
|
58
|
31
|
19
|
19
|
20
|
20
|
17
|
15
|
13
|
13
|
16
|
21
|
20
|
20
|
24
|
18
|
24
|
30
|
28
|
19
|
17
|
16
|
|
|
2024/05
|
16
|
28
|
42
|
29
|
16
|
35
|
41
|
54
|
68
|
58
|
27
|
45
|
67
|
48
|
41
|
52
|
53
|
47
|
18
|
26
|
37
|
37
|
29
|
26
|
21
|
21
|
14
|
39
|
23
|
34
|
25
|
|
2024/04
|
48
|
53
|
39
|
21
|
15
|
21
|
20
|
37
|
46
|
43
|
48
|
48
|
46
|
50
|
54
|
48
|
22
|
38
|
20
|
18
|
21
|
34
|
45
|
51
|
29
|
25
|
33
|
35
|
23
|
17
|
|
|
2024/03
|
93
|
73
|
56
|
17
|
31
|
130
|
112
|
66
|
53
|
59
|
36
|
43
|
49
|
43
|
42
|
42
|
60
|
18
|
35
|
54
|
66
|
36
|
26
|
28
|
31
|
34
|
44
|
27
|
33
|
35
|
37
|
|
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