Air Quality
Excellent
No health implications.
4
PM2.5
9
PM10
19
O3
0.6
CO
4
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Nov
58
Good
Sun
17 Nov
58
Good
Mon
18 Nov
53
Good
Tue
19 Nov
52
Good
Wed
20 Nov
55
Good
Thu
21 Nov
55
Good
Air quality in the last 12 months (Longmen)
|
2024/10
|
25
|
23
|
30
|
27
|
28
|
31
|
35
|
50
|
31
|
27
|
32
|
43
|
44
|
40
|
40
|
32
|
35
|
31
|
30
|
26
|
24
|
32
|
23
|
29
|
35
|
37
|
28
|
12
|
21
|
37
|
30
|
|
2024/09
|
23
|
29
|
26
|
24
|
20
|
12
|
13
|
15
|
13
|
20
|
34
|
37
|
28
|
25
|
16
|
20
|
20
|
18
|
21
|
23
|
13
|
13
|
12
|
13
|
23
|
33
|
26
|
24
|
24
|
22
|
|
|
2024/08
|
23
|
31
|
33
|
40
|
36
|
34
|
34
|
48
|
40
|
32
|
34
|
29
|
18
|
24
|
21
|
25
|
17
|
17
|
18
|
27
|
11
|
20
|
23
|
24
|
25
|
30
|
45
|
39
|
29
|
28
|
20
|
|
2024/07
|
21
|
19
|
22
|
21
|
23
|
19
|
18
|
21
|
24
|
19
|
18
|
17
|
17
|
20
|
15
|
17
|
14
|
16
|
18
|
18
|
18
|
20
|
26
|
37
|
36
|
27
|
20
|
10
|
12
|
14
|
14
|
|
2024/06
|
10
|
12
|
22
|
12
|
14
|
11
|
18
|
13
|
15
|
17
|
21
|
27
|
23
|
23
|
32
|
20
|
29
|
20
|
24
|
20
|
24
|
38
|
23
|
14
|
16
|
20
|
17
|
19
|
19
|
22
|
|
|
2024/05
|
16
|
20
|
24
|
23
|
18
|
37
|
27
|
29
|
40
|
42
|
36
|
22
|
31
|
37
|
37
|
40
|
47
|
32
|
28
|
13
|
7
|
12
|
16
|
13
|
17
|
21
|
21
|
17
|
20
|
25
|
18
|
|
2024/04
|
49
|
56
|
31
|
23
|
16
|
17
|
12
|
15
|
20
|
29
|
46
|
56
|
60
|
37
|
44
|
44
|
27
|
19
|
20
|
18
|
12
|
27
|
25
|
22
|
15
|
20
|
22
|
12
|
21
|
21
|
|
|
2024/03
|
17
|
18
|
25
|
36
|
40
|
24
|
27
|
33
|
38
|
9
|
12
|
21
|
43
|
47
|
21
|
37
|
44
|
49
|
22
|
63
|
53
|
50
|
39
|
34
|
28
|
29
|
35
|
37
|
41
|
42
|
33
|
|
2024/02
|
32
|
24
|
23
|
22
|
10
|
19
|
13
|
15
|
30
|
66
|
49
|
44
|
45
|
37
|
35
|
26
|
29
|
26
|
27
|
21
|
27
|
21
|
15
|
13
|
13
|
17
|
16
|
32
|
28
|
||
|
2024/01
|
68
|
76
|
34
|
30
|
44
|
51
|
47
|
63
|
47
|
25
|
38
|
46
|
52
|
45
|
43
|
48
|
47
|
44
|
42
|
30
|
18
|
16
|
28
|
29
|
31
|
36
|
42
|
45
|
48
|
42
|
44
|
|
2023/12
|
44
|
34
|
34
|
35
|
22
|
25
|
30
|
38
|
53
|
45
|
39
|
30
|
29
|
41
|
43
|
21
|
26
|
27
|
11
|
22
|
28
|
45
|
34
|
33
|
38
|
41
|
47
|
44
|
45
|
62
|
42
|
|
2023/11
|
36
|
42
|
50
|
52
|
42
|
32
|
31
|
49
|
50
|
41
|
13
|
12
|
15
|
27
|
31
|
29
|
53
|
56
|
55
|
54
|
49
|
57
|
58
|
50
|
64
|
49
|
54
|
45
|
49
|
40
|
|
|
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