Air Quality
Excellent
No health implications.
18
PM2.5
28
PM10
68
O3
0.5
CO
6
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Apr
68
Good
Mon
21 Apr
54
Good
Tue
22 Apr
61
Good
Wed
23 Apr
58
Good
Thu
24 Apr
56
Good
Fri
25 Apr
57
Good
Sat
26 Apr
17
Excellent
Air quality in the last 12 months (Bei'an)
|
2025/02
|
76
|
129
|
92
|
34
|
40
|
46
|
26
|
19
|
31
|
50
|
70
|
74
|
58
|
36
|
39
|
31
|
24
|
23
|
25
|
28
|
29
|
28
|
35
|
32
|
43
|
28
|
47
|
37
|
|||
|
2025/01
|
124
|
112
|
93
|
134
|
86
|
61
|
71
|
32
|
42
|
82
|
105
|
163
|
144
|
128
|
51
|
44
|
66
|
98
|
128
|
104
|
89
|
74
|
146
|
202
|
193
|
120
|
50
|
54
|
52
|
37
|
54
|
|
2024/12
|
50
|
28
|
29
|
26
|
33
|
23
|
33
|
40
|
91
|
97
|
33
|
54
|
80
|
59
|
42
|
35
|
40
|
47
|
69
|
123
|
53
|
42
|
39
|
50
|
50
|
31
|
40
|
51
|
58
|
76
|
94
|
|
2024/11
|
62
|
62
|
56
|
30
|
46
|
59
|
97
|
120
|
195
|
121
|
215
|
88
|
144
|
256
|
205
|
63
|
23
|
30
|
76
|
101
|
118
|
26
|
47
|
96
|
109
|
62
|
29
|
44
|
28
|
38
|
|
|
2024/10
|
18
|
23
|
20
|
28
|
36
|
24
|
53
|
52
|
41
|
35
|
22
|
23
|
36
|
48
|
12
|
19
|
32
|
29
|
20
|
42
|
39
|
44
|
35
|
67
|
61
|
80
|
71
|
57
|
80
|
96
|
86
|
|
2024/09
|
13
|
16
|
16
|
24
|
12
|
15
|
18
|
16
|
27
|
23
|
14
|
22
|
12
|
17
|
20
|
21
|
20
|
18
|
15
|
15
|
16
|
20
|
23
|
23
|
18
|
21
|
26
|
20
|
32
|
18
|
|
|
2024/08
|
16
|
15
|
15
|
14
|
15
|
18
|
20
|
13
|
22
|
23
|
14
|
10
|
15
|
17
|
19
|
24
|
26
|
20
|
19
|
23
|
20
|
16
|
22
|
22
|
22
|
13
|
15
|
18
|
20
|
14
|
12
|
|
2024/07
|
42
|
47
|
56
|
53
|
49
|
63
|
91
|
88
|
73
|
82
|
84
|
82
|
92
|
74
|
56
|
44
|
21
|
20
|
20
|
20
|
10
|
13
|
12
|
10
|
14
|
14
|
10
|
12
|
12
|
14
|
16
|
|
2024/06
|
25
|
26
|
26
|
17
|
22
|
29
|
29
|
16
|
16
|
19
|
19
|
16
|
21
|
17
|
15
|
16
|
15
|
18
|
23
|
20
|
12
|
15
|
14
|
19
|
28
|
30
|
29
|
41
|
35
|
46
|
|
|
2024/05
|
42
|
42
|
44
|
64
|
52
|
35
|
31
|
52
|
20
|
25
|
22
|
34
|
24
|
17
|
13
|
18
|
33
|
22
|
24
|
26
|
36
|
34
|
13
|
18
|
22
|
23
|
27
|
36
|
15
|
17
|
27
|
|
2024/04
|
22
|
49
|
40
|
23
|
45
|
38
|
25
|
30
|
48
|
103
|
114
|
94
|
62
|
66
|
84
|
32
|
27
|
28
|
19
|
69
|
176
|
160
|
25
|
37
|
35
|
14
|
19
|
15
|
29
|
42
|
|
|
2024/03
|
33
|
29
|
39
|
35
|
35
|
37
|
43
|
24
|
33
|
54
|
44
|
48
|
48
|
46
|
26
|
29
|
22
|
25
|
30
|
29
|
30
|
32
|
51
|
19
|
29
|
53
|
58
|
183
|
28
|
24
|
19
|
|
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