Air Quality
Excellent
No health implications.
12
PM2.5
27
PM10
45
O3
0.1
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Oct
48
Excellent
Sat
17 Oct
41
Excellent
Sun
18 Oct
41
Excellent
Mon
19 Oct
40
Excellent
Tue
20 Oct
49
Excellent
Wed
21 Oct
49
Excellent
Thu
22 Oct
30
Excellent
Air quality in the last 12 months (Baijiantan)
|
2026/08
|
35
|
36
|
37
|
41
|
40
|
48
|
41
|
46
|
35
|
38
|
30
|
38
|
40
|
37
|
37
|
43
|
40
|
31
|
32
|
49
|
37
|
31
|
30
|
41
|
36
|
31
|
32
|
30
|
36
|
41
|
53
|
|
2026/07
|
39
|
41
|
46
|
57
|
38
|
35
|
37
|
39
|
36
|
33
|
39
|
38
|
34
|
39
|
40
|
46
|
43
|
42
|
42
|
39
|
48
|
44
|
34
|
38
|
39
|
37
|
32
|
31
|
31
|
32
|
39
|
|
2026/06
|
36
|
39
|
38
|
37
|
37
|
38
|
33
|
34
|
35
|
36
|
42
|
38
|
38
|
36
|
34
|
38
|
33
|
35
|
39
|
47
|
39
|
39
|
48
|
52
|
37
|
37
|
36
|
39
|
40
|
35
|
|
|
2026/05
|
40
|
38
|
44
|
48
|
40
|
41
|
55
|
44
|
39
|
40
|
34
|
31
|
31
|
29
|
31
|
29
|
31
|
34
|
61
|
35
|
31
|
40
|
34
|
31
|
33
|
29
|
35
|
43
|
42
|
33
|
36
|
|
2026/04
|
36
|
44
|
37
|
40
|
55
|
56
|
57
|
40
|
56
|
47
|
32
|
39
|
44
|
49
|
61
|
49
|
38
|
32
|
34
|
47
|
44
|
57
|
60
|
61
|
39
|
49
|
44
|
44
|
91
|
43
|
|
|
2026/03
|
27
|
29
|
31
|
43
|
31
|
39
|
60
|
41
|
46
|
45
|
52
|
38
|
41
|
37
|
39
|
49
|
33
|
29
|
37
|
34
|
30
|
32
|
42
|
42
|
38
|
28
|
33
|
31
|
39
|
40
|
41
|
|
2026/02
|
122
|
161
|
151
|
191
|
114
|
58
|
60
|
60
|
48
|
52
|
50
|
72
|
47
|
15
|
16
|
27
|
85
|
66
|
90
|
131
|
36
|
31
|
25
|
46
|
41
|
31
|
28
|
46
|
|||
|
2026/01
|
60
|
68
|
87
|
91
|
152
|
147
|
124
|
144
|
82
|
32
|
87
|
134
|
170
|
62
|
33
|
27
|
30
|
28
|
38
|
47
|
51
|
61
|
68
|
87
|
69
|
73
|
75
|
98
|
128
|
93
|
79
|
|
2025/12
|
22
|
22
|
31
|
46
|
54
|
58
|
33
|
34
|
36
|
44
|
42
|
41
|
47
|
50
|
78
|
90
|
89
|
95
|
37
|
28
|
40
|
58
|
26
|
75
|
74
|
48
|
66
|
57
|
76
|
61
|
51
|
|
2025/11
|
73
|
31
|
27
|
59
|
24
|
41
|
30
|
18
|
31
|
38
|
35
|
23
|
44
|
35
|
18
|
18
|
146
|
179
|
126
|
104
|
131
|
85
|
28
|
31
|
35
|
35
|
23
|
43
|
38
|
22
|
|
|
2025/10
|
34
|
27
|
35
|
25
|
39
|
21
|
26
|
39
|
49
|
29
|
32
|
43
|
48
|
25
|
33
|
28
|
32
|
48
|
52
|
53
|
59
|
60
|
72
|
58
|
60
|
65
|
83
|
68
|
36
|
38
|
54
|
|
2025/09
|
49
|
39
|
37
|
35
|
32
|
35
|
51
|
43
|
54
|
40
|
43
|
39
|
30
|
38
|
30
|
27
|
44
|
48
|
53
|
39
|
33
|
27
|
43
|
29
|
29
|
30
|
48
|
58
|
66
|
48
|
|
|
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