Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
47
O3
0.5
CO
4
SO2
30
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 May
50
Excellent
Fri
15 May
70
Good
Sat
16 May
67
Good
Sun
17 May
70
Good
Mon
18 May
76
Good
Tue
19 May
74
Good
Wed
20 May
32
Excellent
Air quality in the last 12 months (Longwen)
|
2026/04
|
34
|
39
|
43
|
27
|
40
|
43
|
46
|
51
|
48
|
43
|
40
|
34
|
36
|
38
|
62
|
43
|
52
|
47
|
50
|
57
|
47
|
38
|
38
|
21
|
32
|
63
|
65
|
62
|
31
|
28
|
|
|
2026/03
|
15
|
43
|
26
|
37
|
39
|
40
|
51
|
48
|
48
|
43
|
57
|
62
|
48
|
54
|
50
|
45
|
50
|
49
|
47
|
52
|
50
|
51
|
53
|
41
|
55
|
42
|
52
|
44
|
51
|
78
|
44
|
|
2026/02
|
29
|
49
|
53
|
61
|
63
|
56
|
34
|
43
|
40
|
49
|
50
|
51
|
54
|
42
|
32
|
47
|
76
|
46
|
44
|
50
|
54
|
62
|
62
|
78
|
55
|
36
|
46
|
14
|
|||
|
2026/01
|
30
|
31
|
47
|
55
|
50
|
34
|
48
|
60
|
62
|
65
|
68
|
69
|
67
|
70
|
80
|
77
|
72
|
77
|
73
|
48
|
45
|
48
|
41
|
46
|
47
|
63
|
54
|
42
|
48
|
56
|
36
|
|
2025/12
|
50
|
64
|
48
|
50
|
55
|
49
|
57
|
63
|
57
|
53
|
54
|
59
|
41
|
39
|
59
|
55
|
63
|
63
|
78
|
60
|
71
|
39
|
47
|
58
|
26
|
34
|
39
|
45
|
51
|
55
|
57
|
|
2025/11
|
32
|
52
|
45
|
20
|
18
|
32
|
44
|
46
|
54
|
27
|
35
|
12
|
15
|
34
|
51
|
57
|
52
|
44
|
27
|
44
|
51
|
60
|
60
|
58
|
44
|
69
|
65
|
77
|
85
|
63
|
|
|
2025/10
|
47
|
32
|
41
|
40
|
33
|
33
|
41
|
37
|
37
|
37
|
36
|
41
|
34
|
44
|
31
|
38
|
43
|
40
|
28
|
22
|
16
|
15
|
26
|
28
|
32
|
43
|
51
|
39
|
24
|
41
|
50
|
|
2025/09
|
42
|
31
|
32
|
39
|
40
|
30
|
15
|
12
|
15
|
24
|
26
|
36
|
34
|
39
|
34
|
32
|
29
|
21
|
23
|
12
|
25
|
25
|
18
|
15
|
23
|
28
|
33
|
35
|
43
|
54
|
|
|
2025/08
|
27
|
29
|
23
|
15
|
17
|
27
|
35
|
40
|
27
|
13
|
15
|
28
|
25
|
13
|
23
|
24
|
29
|
24
|
22
|
22
|
31
|
21
|
30
|
29
|
31
|
21
|
23
|
28
|
24
|
27
|
36
|
|
2025/07
|
34
|
29
|
34
|
39
|
16
|
26
|
35
|
38
|
41
|
17
|
12
|
24
|
39
|
29
|
30
|
37
|
43
|
32
|
27
|
21
|
13
|
19
|
20
|
28
|
29
|
25
|
27
|
23
|
23
|
22
|
16
|
|
2025/06
|
47
|
27
|
17
|
30
|
40
|
39
|
36
|
46
|
26
|
29
|
38
|
34
|
24
|
20
|
18
|
25
|
26
|
32
|
21
|
17
|
15
|
20
|
24
|
29
|
23
|
16
|
18
|
18
|
20
|
26
|
|
|
2025/05
|
70
|
56
|
54
|
59
|
42
|
39
|
42
|
74
|
50
|
28
|
31
|
47
|
53
|
47
|
38
|
18
|
19
|
31
|
31
|
33
|
28
|
37
|
32
|
24
|
51
|
53
|
44
|
50
|
13
|
26
|
51
|
|
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