Air Quality
Excellent
No health implications.
8
PM2.5
22
PM10
57
O3
0.3
CO
6
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Jan
58
Good
Sat
17 Jan
45
Excellent
Sun
18 Jan
56
Good
Mon
19 Jan
62
Good
Tue
20 Jan
76
Good
Wed
21 Jan
97
Good
Thu
22 Jan
41
Excellent
Baijiantan Air quality rank
Air quality in the last 12 months (Baijiantan)
|
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
|
|
|
2025/08
|
37
|
33
|
24
|
33
|
37
|
31
|
36
|
24
|
39
|
37
|
26
|
23
|
29
|
29
|
34
|
40
|
42
|
37
|
27
|
26
|
27
|
41
|
40
|
47
|
36
|
35
|
34
|
39
|
38
|
35
|
84
|
|
2025/07
|
29
|
31
|
26
|
21
|
27
|
45
|
31
|
30
|
27
|
30
|
37
|
35
|
32
|
32
|
40
|
35
|
53
|
37
|
38
|
45
|
31
|
32
|
28
|
28
|
34
|
35
|
36
|
56
|
57
|
37
|
33
|
|
2025/06
|
29
|
31
|
36
|
36
|
32
|
36
|
42
|
60
|
46
|
36
|
43
|
37
|
35
|
44
|
37
|
36
|
35
|
27
|
41
|
32
|
31
|
26
|
56
|
49
|
33
|
44
|
32
|
27
|
17
|
25
|
|
|
2025/05
|
23
|
33
|
22
|
20
|
27
|
39
|
28
|
17
|
32
|
58
|
45
|
29
|
29
|
31
|
54
|
46
|
42
|
104
|
64
|
25
|
30
|
33
|
37
|
45
|
31
|
38
|
38
|
31
|
40
|
35
|
35
|
|
2025/04
|
37
|
18
|
15
|
18
|
43
|
18
|
29
|
41
|
58
|
14
|
22
|
13
|
35
|
53
|
24
|
17
|
13
|
25
|
28
|
13
|
23
|
38
|
41
|
19
|
20
|
15
|
23
|
39
|
45
|
45
|
|
|
2025/03
|
39
|
38
|
39
|
44
|
32
|
23
|
29
|
26
|
19
|
37
|
25
|
13
|
17
|
13
|
14
|
30
|
38
|
48
|
40
|
44
|
58
|
65
|
19
|
18
|
13
|
16
|
13
|
12
|
21
|
22
|
31
|
|
2025/02
|
100
|
69
|
50
|
40
|
38
|
73
|
91
|
110
|
107
|
133
|
86
|
59
|
86
|
100
|
87
|
112
|
138
|
86
|
55
|
59
|
72
|
71
|
61
|
67
|
73
|
74
|
83
|
62
|
|||
|
2025/01
|
135
|
123
|
150
|
155
|
69
|
44
|
44
|
60
|
68
|
66
|
51
|
39
|
46
|
42
|
53
|
62
|
91
|
112
|
133
|
126
|
122
|
122
|
102
|
52
|
21
|
21
|
25
|
56
|
78
|
93
|
77
|
|
2024/12
|
67
|
108
|
61
|
22
|
34
|
31
|
26
|
28
|
34
|
20
|
25
|
28
|
28
|
42
|
51
|
69
|
64
|
41
|
37
|
64
|
62
|
78
|
82
|
85
|
56
|
44
|
43
|
58
|
83
|
106
|
129
|
|
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