Air Quality
Excellent
No health implications.
13
PM2.5
21
PM10
85
O3
0.7
CO
3
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jan
43
Excellent
Tue
28 Jan
57
Good
Wed
29 Jan
79
Good
Thu
30 Jan
61
Good
Fri
31 Jan
62
Good
Sat
1 Feb
57
Good
Sun
2 Feb
35
Excellent
Air quality in the last 12 months (Longwen)
|
2024/12
|
62
|
73
|
52
|
45
|
49
|
49
|
46
|
33
|
34
|
42
|
48
|
30
|
24
|
40
|
62
|
63
|
62
|
61
|
55
|
43
|
51
|
67
|
72
|
45
|
53
|
61
|
64
|
73
|
69
|
64
|
75
|
|
2024/11
|
15
|
20
|
38
|
51
|
51
|
45
|
31
|
32
|
52
|
51
|
41
|
35
|
25
|
40
|
39
|
27
|
33
|
19
|
18
|
12
|
15
|
24
|
30
|
33
|
32
|
18
|
30
|
28
|
41
|
55
|
|
|
2024/10
|
14
|
15
|
21
|
21
|
22
|
28
|
27
|
19
|
31
|
41
|
52
|
50
|
43
|
43
|
34
|
32
|
37
|
51
|
47
|
22
|
35
|
38
|
41
|
39
|
32
|
32
|
44
|
24
|
36
|
48
|
21
|
|
2024/09
|
38
|
45
|
46
|
36
|
31
|
16
|
16
|
23
|
21
|
39
|
53
|
61
|
30
|
37
|
28
|
28
|
31
|
26
|
38
|
24
|
28
|
10
|
12
|
16
|
22
|
33
|
27
|
19
|
26
|
18
|
|
|
2024/08
|
29
|
32
|
40
|
48
|
45
|
47
|
35
|
24
|
35
|
50
|
46
|
38
|
29
|
30
|
23
|
22
|
25
|
23
|
20
|
13
|
17
|
24
|
31
|
35
|
47
|
54
|
36
|
36
|
49
|
36
|
36
|
|
2024/07
|
17
|
19
|
17
|
19
|
16
|
16
|
13
|
20
|
14
|
23
|
29
|
32
|
28
|
26
|
24
|
20
|
19
|
17
|
18
|
24
|
25
|
34
|
40
|
31
|
14
|
7
|
14
|
21
|
23
|
20
|
11
|
|
2024/06
|
9
|
9
|
32
|
30
|
33
|
34
|
28
|
32
|
24
|
25
|
18
|
27
|
34
|
25
|
22
|
21
|
18
|
25
|
17
|
21
|
22
|
31
|
20
|
11
|
17
|
22
|
19
|
17
|
16
|
19
|
|
|
2024/05
|
32
|
25
|
32
|
45
|
24
|
39
|
54
|
55
|
51
|
46
|
51
|
36
|
34
|
35
|
47
|
58
|
53
|
56
|
48
|
25
|
19
|
14
|
24
|
22
|
30
|
19
|
17
|
26
|
32
|
52
|
34
|
|
2024/04
|
36
|
60
|
45
|
49
|
30
|
39
|
23
|
40
|
21
|
45
|
53
|
62
|
79
|
55
|
60
|
58
|
50
|
44
|
51
|
55
|
26
|
40
|
36
|
26
|
42
|
25
|
29
|
17
|
27
|
28
|
|
|
2024/03
|
16
|
31
|
48
|
55
|
74
|
47
|
37
|
68
|
71
|
72
|
47
|
36
|
78
|
76
|
69
|
84
|
71
|
49
|
60
|
63
|
65
|
75
|
78
|
40
|
42
|
49
|
51
|
60
|
61
|
64
|
41
|
|
2024/02
|
60
|
40
|
41
|
24
|
28
|
23
|
18
|
18
|
49
|
71
|
52
|
48
|
57
|
53
|
50
|
38
|
44
|
79
|
48
|
36
|
23
|
39
|
27
|
38
|
52
|
45
|
37
|
55
|
52
|
||
|
2024/01
|
79
|
84
|
47
|
51
|
73
|
82
|
79
|
114
|
80
|
51
|
88
|
104
|
87
|
54
|
83
|
84
|
59
|
60
|
75
|
43
|
36
|
30
|
19
|
34
|
60
|
77
|
92
|
91
|
75
|
53
|
83
|
|
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