Air Quality
Excellent
No health implications.
15
PM2.5
28
PM10
40
O3
0.5
CO
4
SO2
36
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Oct
44
Excellent
Wed
29 Oct
41
Excellent
Thu
30 Oct
44
Excellent
Fri
31 Oct
43
Excellent
Sat
1 Nov
60
Good
Sun
2 Nov
51
Good
Mon
3 Nov
47
Excellent
Air quality in the last 12 months (Longwan)
|
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
|
|
2025/07
|
19
|
26
|
24
|
24
|
17
|
14
|
9
|
10
|
15
|
18
|
21
|
28
|
29
|
40
|
45
|
40
|
33
|
21
|
21
|
18
|
12
|
17
|
24
|
21
|
15
|
15
|
16
|
17
|
19
|
20
|
40
|
|
2025/06
|
37
|
50
|
21
|
32
|
36
|
39
|
39
|
36
|
32
|
18
|
7
|
29
|
22
|
33
|
29
|
20
|
43
|
34
|
25
|
22
|
34
|
37
|
21
|
34
|
31
|
30
|
28
|
24
|
20
|
15
|
|
|
2025/05
|
38
|
45
|
59
|
30
|
36
|
48
|
57
|
54
|
51
|
29
|
31
|
40
|
31
|
34
|
31
|
38
|
48
|
18
|
36
|
40
|
27
|
26
|
39
|
25
|
58
|
44
|
23
|
37
|
20
|
46
|
46
|
|
2025/04
|
32
|
52
|
57
|
50
|
45
|
56
|
57
|
58
|
62
|
54
|
48
|
56
|
85
|
91
|
68
|
57
|
80
|
62
|
49
|
45
|
49
|
41
|
26
|
41
|
27
|
45
|
50
|
44
|
44
|
41
|
|
|
2025/03
|
52
|
54
|
52
|
31
|
21
|
19
|
40
|
54
|
53
|
44
|
56
|
47
|
32
|
35
|
22
|
29
|
44
|
47
|
47
|
58
|
50
|
53
|
58
|
74
|
76
|
57
|
58
|
28
|
44
|
28
|
26
|
|
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
|
|
|
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