Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
47
O3
0.5
CO
3
SO2
26
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 May
48
Excellent
Fri
15 May
65
Good
Sat
16 May
66
Good
Sun
17 May
67
Good
Mon
18 May
77
Good
Tue
19 May
71
Good
Wed
20 May
39
Excellent
Air quality in the last 12 months (Longhai)
|
2026/04
|
33
|
37
|
39
|
28
|
37
|
38
|
41
|
47
|
47
|
37
|
35
|
32
|
32
|
34
|
55
|
37
|
47
|
44
|
46
|
50
|
43
|
37
|
37
|
20
|
32
|
59
|
60
|
57
|
30
|
26
|
|
|
2026/03
|
15
|
40
|
24
|
33
|
34
|
37
|
48
|
44
|
45
|
41
|
54
|
56
|
48
|
49
|
47
|
42
|
47
|
46
|
41
|
48
|
46
|
45
|
46
|
36
|
52
|
39
|
46
|
39
|
48
|
68
|
40
|
|
2026/02
|
26
|
47
|
50
|
56
|
56
|
54
|
31
|
42
|
38
|
46
|
46
|
51
|
52
|
42
|
33
|
45
|
65
|
42
|
42
|
50
|
52
|
63
|
59
|
73
|
46
|
31
|
46
|
12
|
|||
|
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
|
|
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