Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
24
O3
0.5
CO
5
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Aug
41
Excellent
Fri
21 Aug
42
Excellent
Sat
22 Aug
39
Excellent
Sun
23 Aug
39
Excellent
Mon
24 Aug
37
Excellent
Tue
25 Aug
40
Excellent
Wed
26 Aug
18
Excellent
Air quality in the last 12 months (Longwan)
|
2026/07
|
28
|
43
|
35
|
35
|
38
|
38
|
31
|
37
|
27
|
31
|
16
|
24
|
25
|
26
|
34
|
40
|
51
|
46
|
49
|
25
|
38
|
39
|
48
|
32
|
18
|
25
|
15
|
13
|
24
|
27
|
31
|
|
2026/06
|
44
|
57
|
48
|
42
|
40
|
31
|
33
|
25
|
23
|
27
|
46
|
42
|
29
|
29
|
29
|
32
|
25
|
28
|
25
|
31
|
41
|
36
|
36
|
30
|
28
|
25
|
44
|
45
|
32
|
26
|
|
|
2026/05
|
39
|
45
|
46
|
40
|
34
|
33
|
38
|
31
|
28
|
41
|
40
|
38
|
29
|
37
|
25
|
31
|
29
|
32
|
35
|
50
|
56
|
42
|
49
|
53
|
53
|
56
|
44
|
39
|
46
|
45
|
40
|
|
2026/04
|
34
|
38
|
57
|
35
|
44
|
49
|
34
|
36
|
57
|
55
|
51
|
31
|
70
|
68
|
56
|
40
|
45
|
36
|
58
|
62
|
25
|
39
|
23
|
32
|
40
|
49
|
46
|
49
|
25
|
28
|
|
|
2026/03
|
23
|
18
|
25
|
31
|
24
|
33
|
44
|
34
|
37
|
43
|
43
|
45
|
56
|
48
|
36
|
36
|
47
|
57
|
27
|
56
|
32
|
48
|
35
|
35
|
54
|
42
|
45
|
43
|
47
|
44
|
43
|
|
2026/02
|
27
|
39
|
54
|
46
|
49
|
41
|
18
|
37
|
35
|
39
|
51
|
69
|
57
|
37
|
31
|
26
|
58
|
44
|
60
|
50
|
45
|
39
|
114
|
50
|
23
|
33
|
19
|
24
|
|||
|
2026/01
|
26
|
27
|
57
|
65
|
40
|
51
|
55
|
65
|
71
|
69
|
65
|
71
|
71
|
83
|
63
|
73
|
72
|
51
|
40
|
12
|
36
|
50
|
50
|
60
|
73
|
51
|
23
|
40
|
39
|
40
|
14
|
|
2025/12
|
69
|
66
|
53
|
50
|
51
|
51
|
56
|
64
|
39
|
50
|
55
|
52
|
41
|
43
|
67
|
59
|
69
|
78
|
65
|
63
|
58
|
29
|
56
|
61
|
30
|
41
|
41
|
48
|
54
|
64
|
36
|
|
2025/11
|
32
|
57
|
37
|
24
|
21
|
37
|
43
|
47
|
31
|
41
|
24
|
13
|
22
|
51
|
50
|
49
|
33
|
18
|
38
|
51
|
57
|
65
|
59
|
59
|
64
|
88
|
84
|
96
|
94
|
74
|
|
|
2025/10
|
20
|
18
|
17
|
15
|
26
|
33
|
28
|
35
|
27
|
29
|
32
|
28
|
24
|
25
|
18
|
32
|
23
|
30
|
11
|
16
|
17
|
27
|
40
|
30
|
37
|
44
|
38
|
29
|
20
|
34
|
19
|
|
2025/09
|
22
|
19
|
19
|
28
|
23
|
20
|
18
|
22
|
23
|
23
|
22
|
32
|
41
|
27
|
25
|
18
|
18
|
18
|
15
|
20
|
18
|
20
|
22
|
24
|
23
|
20
|
24
|
27
|
21
|
22
|
|
|
2025/08
|
40
|
39
|
41
|
30
|
23
|
36
|
45
|
49
|
44
|
43
|
36
|
26
|
24
|
15
|
16
|
19
|
22
|
17
|
22
|
39
|
29
|
31
|
24
|
20
|
17
|
16
|
17
|
17
|
16
|
14
|
15
|
|
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