Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
31
PM2.5
54
*
PM10
108
O3
0.5
CO
2
SO2
9
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
16 Feb
60
Good
Tue
17 Feb
108
Light
Wed
18 Feb
51
Good
Thu
19 Feb
55
Good
Fri
20 Feb
58
Good
Sat
21 Feb
58
Good
Sun
22 Feb
22
Excellent
Air quality in the last 12 months (Longhai)
|
2026/01
|
29
|
31
|
44
|
50
|
50
|
32
|
44
|
56
|
57
|
64
|
66
|
64
|
64
|
64
|
72
|
72
|
70
|
66
|
63
|
45
|
42
|
44
|
37
|
43
|
42
|
58
|
47
|
39
|
43
|
52
|
32
|
|
2025/12
|
51
|
56
|
46
|
46
|
46
|
44
|
52
|
58
|
52
|
48
|
51
|
55
|
40
|
36
|
55
|
52
|
58
|
59
|
75
|
60
|
67
|
35
|
42
|
54
|
27
|
32
|
32
|
41
|
46
|
52
|
51
|
|
2025/11
|
29
|
50
|
43
|
16
|
18
|
28
|
40
|
41
|
50
|
26
|
29
|
11
|
14
|
33
|
48
|
52
|
48
|
40
|
24
|
40
|
48
|
55
|
56
|
55
|
42
|
71
|
61
|
76
|
82
|
62
|
|
|
2025/10
|
40
|
29
|
37
|
37
|
31
|
31
|
37
|
35
|
34
|
33
|
33
|
37
|
31
|
43
|
28
|
36
|
40
|
37
|
26
|
21
|
14
|
14
|
24
|
25
|
29
|
42
|
49
|
34
|
24
|
38
|
47
|
|
2025/09
|
38
|
31
|
31
|
35
|
34
|
26
|
13
|
11
|
14
|
24
|
25
|
34
|
31
|
33
|
31
|
32
|
26
|
21
|
20
|
11
|
23
|
21
|
19
|
14
|
22
|
25
|
29
|
31
|
40
|
50
|
|
|
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
|
|||
|
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