Air Quality
Excellent
No health implications.
27
PM2.5
38
PM10
64
O3
0.7
CO
7
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Mar
60
Good
Sun
29 Mar
59
Good
Mon
30 Mar
60
Good
Tue
31 Mar
62
Good
Wed
1 Apr
61
Good
Thu
2 Apr
59
Good
Fri
3 Apr
20
Excellent
Air quality in the last 12 months (Longmen)
|
2026/02
|
15
|
24
|
37
|
48
|
44
|
36
|
23
|
27
|
33
|
41
|
35
|
31
|
43
|
33
|
23
|
30
|
34
|
30
|
44
|
44
|
50
|
41
|
41
|
44
|
34
|
26
|
26
|
11
|
|||
|
2026/01
|
52
|
14
|
29
|
36
|
36
|
33
|
37
|
28
|
31
|
34
|
35
|
46
|
49
|
52
|
53
|
60
|
61
|
65
|
65
|
64
|
17
|
24
|
31
|
42
|
46
|
48
|
57
|
29
|
35
|
33
|
27
|
|
2025/12
|
35
|
32
|
57
|
57
|
56
|
55
|
50
|
48
|
49
|
49
|
50
|
42
|
30
|
28
|
34
|
36
|
35
|
41
|
40
|
27
|
44
|
73
|
58
|
47
|
20
|
39
|
36
|
35
|
37
|
40
|
44
|
|
2025/11
|
28
|
31
|
27
|
9
|
10
|
19
|
28
|
32
|
22
|
12
|
21
|
18
|
12
|
29
|
31
|
36
|
35
|
35
|
22
|
26
|
27
|
35
|
38
|
36
|
43
|
61
|
50
|
58
|
52
|
44
|
|
|
2025/10
|
34
|
22
|
23
|
23
|
15
|
17
|
24
|
32
|
36
|
42
|
30
|
22
|
18
|
19
|
22
|
28
|
28
|
30
|
34
|
11
|
6
|
8
|
27
|
36
|
33
|
40
|
57
|
53
|
42
|
28
|
29
|
|
2025/09
|
21
|
22
|
23
|
29
|
26
|
29
|
19
|
8
|
14
|
18
|
21
|
23
|
23
|
26
|
21
|
19
|
19
|
18
|
11
|
8
|
13
|
18
|
24
|
8
|
11
|
18
|
25
|
23
|
25
|
31
|
|
|
2025/08
|
24
|
21
|
18
|
11
|
12
|
11
|
20
|
27
|
38
|
22
|
20
|
27
|
27
|
18
|
12
|
20
|
20
|
12
|
15
|
18
|
24
|
22
|
21
|
17
|
16
|
17
|
22
|
23
|
20
|
19
|
17
|
|
2025/07
|
15
|
18
|
29
|
37
|
37
|
28
|
40
|
34
|
34
|
17
|
8
|
19
|
23
|
30
|
36
|
36
|
39
|
39
|
19
|
10
|
10
|
12
|
17
|
20
|
23
|
26
|
39
|
26
|
28
|
31
|
15
|
|
2025/06
|
30
|
29
|
15
|
25
|
24
|
36
|
35
|
30
|
30
|
25
|
19
|
18
|
17
|
13
|
19
|
17
|
12
|
18
|
20
|
13
|
16
|
21
|
23
|
20
|
21
|
16
|
15
|
16
|
18
|
14
|
|
|
2025/05
|
39
|
42
|
45
|
37
|
31
|
24
|
16
|
33
|
22
|
26
|
29
|
31
|
36
|
32
|
25
|
21
|
21
|
26
|
19
|
22
|
25
|
25
|
24
|
21
|
50
|
52
|
42
|
33
|
16
|
14
|
28
|
|
2025/04
|
23
|
32
|
43
|
52
|
25
|
46
|
53
|
58
|
59
|
47
|
43
|
50
|
218
|
122
|
82
|
82
|
63
|
53
|
35
|
41
|
35
|
36
|
39
|
25
|
12
|
17
|
40
|
28
|
40
|
53
|
|
|
2025/03
|
31
|
30
|
31
|
22
|
9
|
9
|
19
|
26
|
30
|
39
|
34
|
33
|
31
|
29
|
17
|
13
|
46
|
35
|
30
|
36
|
40
|
48
|
58
|
63
|
69
|
51
|
36
|
45
|
9
|
6
|
6
|
|
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