Air Quality
Excellent
No health implications.
15
PM2.5
26
PM10
31
O3
0.3
CO
3
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Apr
53
Good
Wed
15 Apr
61
Good
Thu
16 Apr
59
Good
Fri
17 Apr
58
Good
Sat
18 Apr
64
Good
Sun
19 Apr
27
Excellent
Mon
20 Apr
29
Excellent
Air quality in the last 12 months (Longhai)
|
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
|
|
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
|
|
|
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