Air Quality
Excellent
No health implications.
16
PM2.5
25
PM10
63
O3
0.4
CO
4
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Oct
42
Excellent
Sat
25 Oct
46
Excellent
Sun
26 Oct
45
Excellent
Mon
27 Oct
43
Excellent
Tue
28 Oct
45
Excellent
Wed
29 Oct
17
Excellent
Thu
30 Oct
44
Excellent
Longhai Air quality rank
Air quality in the last 12 months (Longhai)
|
2025/08
|
27
|
29
|
20
|
14
|
16
|
26
|
35
|
40
|
25
|
12
|
15
|
23
|
23
|
15
|
21
|
24
|
26
|
22
|
20
|
21
|
30
|
23
|
29
|
28
|
30
|
21
|
22
|
27
|
21
|
24
|
31
|
|
2025/07
|
30
|
27
|
32
|
35
|
14
|
24
|
36
|
38
|
39
|
13
|
10
|
23
|
38
|
30
|
30
|
36
|
41
|
30
|
24
|
20
|
13
|
17
|
18
|
25
|
27
|
25
|
27
|
20
|
22
|
23
|
17
|
|
2025/06
|
45
|
25
|
15
|
28
|
37
|
36
|
31
|
39
|
22
|
27
|
32
|
32
|
22
|
20
|
19
|
23
|
22
|
29
|
18
|
14
|
14
|
20
|
25
|
26
|
19
|
13
|
18
|
18
|
18
|
24
|
|
|
2025/05
|
63
|
54
|
52
|
53
|
40
|
40
|
40
|
65
|
44
|
28
|
30
|
43
|
47
|
46
|
33
|
17
|
18
|
27
|
28
|
31
|
26
|
35
|
30
|
23
|
50
|
46
|
39
|
41
|
12
|
27
|
49
|
|
2025/04
|
21
|
42
|
53
|
62
|
53
|
56
|
60
|
66
|
76
|
44
|
45
|
40
|
136
|
94
|
95
|
76
|
64
|
60
|
51
|
51
|
48
|
37
|
36
|
34
|
22
|
15
|
35
|
45
|
40
|
48
|
|
|
2025/03
|
71
|
30
|
32
|
34
|
14
|
14
|
25
|
36
|
40
|
44
|
53
|
50
|
35
|
36
|
39
|
9
|
48
|
52
|
48
|
49
|
56
|
55
|
66
|
72
|
80
|
56
|
50
|
58
|
25
|
11
|
11
|
|
2025/02
|
51
|
21
|
17
|
35
|
62
|
54
|
15
|
43
|
42
|
41
|
45
|
48
|
47
|
35
|
43
|
66
|
51
|
58
|
33
|
37
|
25
|
25
|
21
|
38
|
48
|
68
|
76
|
82
|
|||
|
2025/01
|
64
|
66
|
60
|
47
|
54
|
60
|
65
|
61
|
59
|
62
|
48
|
51
|
59
|
59
|
79
|
83
|
66
|
57
|
56
|
55
|
63
|
68
|
57
|
34
|
29
|
29
|
19
|
38
|
117
|
43
|
40
|
|
2024/12
|
57
|
67
|
54
|
40
|
46
|
45
|
41
|
35
|
32
|
38
|
44
|
27
|
26
|
38
|
61
|
58
|
58
|
55
|
52
|
39
|
49
|
65
|
58
|
39
|
48
|
56
|
61
|
71
|
61
|
59
|
68
|
|
2024/11
|
18
|
19
|
36
|
47
|
48
|
46
|
31
|
30
|
49
|
46
|
37
|
30
|
23
|
35
|
36
|
25
|
30
|
21
|
16
|
10
|
14
|
23
|
29
|
30
|
30
|
18
|
30
|
27
|
40
|
51
|
|
|
2024/10
|
14
|
13
|
18
|
18
|
20
|
26
|
26
|
18
|
32
|
43
|
49
|
46
|
39
|
39
|
33
|
31
|
37
|
48
|
43
|
22
|
31
|
36
|
40
|
37
|
29
|
31
|
41
|
25
|
35
|
44
|
19
|
|
2024/09
|
34
|
45
|
40
|
31
|
27
|
17
|
17
|
19
|
19
|
38
|
51
|
55
|
26
|
33
|
26
|
27
|
28
|
26
|
34
|
21
|
24
|
10
|
11
|
14
|
23
|
30
|
22
|
19
|
24
|
17
|
|
|
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