Air Quality
Excellent
No health implications.
11
PM2.5
26
PM10
35
O3
0.6
CO
3
SO2
32
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 May
91
Good
Sun
11 May
90
Good
Mon
12 May
101
Light
Tue
13 May
84
Good
Wed
14 May
83
Good
Thu
15 May
55
Good
Fri
16 May
43
Excellent
Air quality in the last 12 months (Longwan)
|
2025/02
|
30
|
12
|
42
|
72
|
49
|
53
|
47
|
35
|
35
|
43
|
41
|
41
|
74
|
41
|
48
|
71
|
71
|
27
|
48
|
28
|
19
|
38
|
27
|
90
|
98
|
78
|
75
|
50
|
|||
|
2025/01
|
76
|
47
|
50
|
47
|
48
|
69
|
75
|
69
|
62
|
40
|
46
|
56
|
61
|
62
|
82
|
46
|
61
|
60
|
55
|
72
|
101
|
74
|
46
|
27
|
33
|
30
|
30
|
45
|
76
|
43
|
44
|
|
2024/12
|
57
|
57
|
54
|
51
|
48
|
32
|
30
|
58
|
35
|
47
|
24
|
31
|
17
|
96
|
85
|
55
|
56
|
57
|
35
|
35
|
55
|
58
|
40
|
36
|
41
|
85
|
124
|
59
|
56
|
57
|
70
|
|
2024/11
|
11
|
17
|
43
|
49
|
45
|
25
|
29
|
35
|
40
|
31
|
25
|
37
|
34
|
38
|
16
|
19
|
18
|
14
|
15
|
25
|
37
|
30
|
38
|
30
|
36
|
15
|
39
|
41
|
47
|
47
|
|
|
2024/10
|
16
|
10
|
18
|
17
|
23
|
18
|
13
|
18
|
43
|
48
|
52
|
43
|
32
|
45
|
33
|
31
|
39
|
38
|
32
|
14
|
37
|
43
|
29
|
31
|
25
|
20
|
20
|
19
|
49
|
29
|
23
|
|
2024/09
|
37
|
30
|
23
|
23
|
25
|
17
|
18
|
15
|
29
|
34
|
31
|
31
|
18
|
20
|
23
|
21
|
20
|
24
|
17
|
22
|
28
|
13
|
18
|
18
|
15
|
22
|
26
|
37
|
31
|
23
|
|
|
2024/08
|
32
|
49
|
47
|
45
|
30
|
27
|
37
|
35
|
39
|
41
|
51
|
45
|
38
|
32
|
23
|
24
|
20
|
19
|
15
|
20
|
20
|
28
|
41
|
38
|
28
|
23
|
43
|
29
|
33
|
26
|
30
|
|
2024/07
|
35
|
28
|
30
|
26
|
35
|
27
|
34
|
28
|
32
|
43
|
48
|
45
|
37
|
35
|
19
|
20
|
23
|
34
|
31
|
19
|
18
|
16
|
19
|
20
|
22
|
23
|
17
|
22
|
21
|
15
|
19
|
|
2024/06
|
9
|
14
|
26
|
44
|
36
|
16
|
25
|
41
|
28
|
19
|
30
|
34
|
30
|
41
|
27
|
21
|
22
|
20
|
33
|
47
|
42
|
45
|
54
|
26
|
27
|
33
|
48
|
33
|
24
|
34
|
|
|
2024/05
|
19
|
24
|
43
|
42
|
62
|
48
|
50
|
50
|
24
|
32
|
50
|
39
|
36
|
37
|
54
|
32
|
35
|
37
|
35
|
32
|
26
|
33
|
44
|
30
|
18
|
31
|
25
|
17
|
26
|
36
|
35
|
|
2024/04
|
47
|
51
|
49
|
29
|
34
|
40
|
37
|
46
|
35
|
64
|
60
|
51
|
39
|
27
|
45
|
53
|
41
|
37
|
93
|
84
|
55
|
28
|
31
|
43
|
38
|
59
|
46
|
41
|
46
|
21
|
|
|
2024/03
|
19
|
46
|
58
|
66
|
65
|
13
|
57
|
75
|
69
|
48
|
46
|
60
|
71
|
72
|
64
|
43
|
57
|
35
|
43
|
74
|
70
|
69
|
72
|
63
|
47
|
43
|
35
|
56
|
52
|
63
|
50
|
|
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