Air Quality
Excellent
No health implications.
22
PM2.5
22
PM10
54
O3
0.2
CO
3
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jan
34
Excellent
Fri
16 Jan
38
Excellent
Sat
17 Jan
36
Excellent
Sun
18 Jan
33
Excellent
Mon
19 Jan
36
Excellent
Tue
20 Jan
47
Excellent
Wed
21 Jan
21
Excellent
Air quality in the last 12 months (Longyang)
|
2025/11
|
24
|
19
|
14
|
16
|
18
|
16
|
22
|
22
|
24
|
22
|
22
|
19
|
21
|
23
|
28
|
26
|
26
|
25
|
24
|
21
|
20
|
20
|
21
|
26
|
29
|
31
|
31
|
29
|
33
|
33
|
|
|
2025/10
|
24
|
20
|
22
|
21
|
20
|
22
|
23
|
21
|
21
|
26
|
23
|
21
|
22
|
22
|
28
|
31
|
27
|
23
|
24
|
22
|
21
|
22
|
25
|
24
|
21
|
23
|
25
|
24
|
25
|
24
|
25
|
|
2025/09
|
23
|
22
|
23
|
27
|
25
|
26
|
29
|
27
|
23
|
28
|
25
|
26
|
19
|
19
|
23
|
17
|
19
|
22
|
27
|
32
|
28
|
27
|
29
|
22
|
30
|
26
|
22
|
22
|
26
|
21
|
|
|
2025/08
|
21
|
19
|
16
|
14
|
22
|
26
|
23
|
19
|
16
|
14
|
19
|
22
|
20
|
23
|
24
|
26
|
19
|
20
|
23
|
18
|
16
|
18
|
19
|
19
|
21
|
24
|
18
|
23
|
22
|
25
|
24
|
|
2025/07
|
22
|
19
|
20
|
17
|
14
|
18
|
19
|
17
|
20
|
18
|
21
|
25
|
29
|
24
|
21
|
24
|
23
|
26
|
26
|
22
|
22
|
25
|
28
|
20
|
20
|
20
|
21
|
22
|
27
|
20
|
18
|
|
2025/06
|
21
|
20
|
28
|
49
|
39
|
33
|
30
|
31
|
28
|
22
|
32
|
35
|
43
|
32
|
25
|
25
|
18
|
14
|
15
|
20
|
23
|
18
|
18
|
17
|
15
|
15
|
22
|
24
|
20
|
17
|
|
|
2025/05
|
33
|
28
|
32
|
20
|
29
|
35
|
30
|
39
|
40
|
48
|
43
|
48
|
42
|
43
|
40
|
40
|
30
|
28
|
37
|
32
|
39
|
41
|
47
|
38
|
17
|
20
|
21
|
22
|
18
|
25
|
18
|
|
2025/04
|
96
|
73
|
72
|
76
|
67
|
72
|
61
|
75
|
70
|
71
|
55
|
53
|
29
|
35
|
42
|
32
|
26
|
30
|
30
|
29
|
33
|
36
|
55
|
56
|
63
|
67
|
68
|
61
|
41
|
50
|
|
|
2025/03
|
48
|
55
|
47
|
43
|
50
|
56
|
65
|
68
|
67
|
51
|
59
|
77
|
86
|
60
|
57
|
51
|
55
|
71
|
62
|
48
|
63
|
60
|
58
|
48
|
41
|
35
|
40
|
70
|
102
|
78
|
91
|
|
2025/02
|
62
|
60
|
49
|
46
|
53
|
61
|
55
|
38
|
42
|
42
|
34
|
37
|
49
|
57
|
45
|
58
|
49
|
48
|
58
|
51
|
49
|
47
|
46
|
47
|
45
|
35
|
33
|
47
|
|||
|
2025/01
|
28
|
31
|
32
|
29
|
33
|
32
|
24
|
31
|
26
|
37
|
37
|
41
|
32
|
34
|
39
|
40
|
40
|
35
|
33
|
29
|
29
|
32
|
35
|
32
|
35
|
54
|
31
|
55
|
107
|
38
|
45
|
|
2024/12
|
26
|
27
|
23
|
26
|
24
|
29
|
31
|
36
|
29
|
30
|
44
|
44
|
36
|
31
|
41
|
36
|
34
|
34
|
20
|
20
|
28
|
16
|
21
|
20
|
25
|
31
|
46
|
36
|
21
|
21
|
24
|
|
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