Air Quality
Excellent
No health implications.
11
PM2.5
29
PM10
103
O3
0.3
CO
6
SO2
34
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Apr
69
Good
Fri
26 Apr
56
Good
Sat
27 Apr
69
Good
Sun
28 Apr
57
Good
Mon
29 Apr
76
Good
Tue
30 Apr
56
Good
Wed
1 May
56
Good
Air quality in the last 12 months (Longwan)
|
2024/02
|
32
|
17
|
24
|
16
|
18
|
31
|
16
|
50
|
92
|
101
|
59
|
68
|
52
|
53
|
50
|
22
|
35
|
35
|
37
|
20
|
24
|
12
|
16
|
16
|
19
|
39
|
37
|
46
|
17
|
||
|
2024/01
|
109
|
57
|
48
|
57
|
74
|
84
|
144
|
109
|
79
|
78
|
130
|
120
|
77
|
64
|
113
|
43
|
58
|
70
|
91
|
35
|
22
|
25
|
29
|
43
|
51
|
65
|
92
|
94
|
110
|
38
|
30
|
|
2023/12
|
43
|
51
|
69
|
38
|
35
|
51
|
59
|
67
|
66
|
42
|
66
|
23
|
51
|
55
|
55
|
22
|
37
|
36
|
17
|
40
|
52
|
39
|
46
|
53
|
68
|
79
|
62
|
60
|
67
|
98
|
105
|
|
2023/11
|
38
|
42
|
42
|
34
|
30
|
30
|
38
|
52
|
58
|
18
|
16
|
16
|
34
|
41
|
50
|
42
|
56
|
63
|
59
|
57
|
56
|
57
|
53
|
86
|
32
|
41
|
61
|
59
|
66
|
72
|
|
|
2023/10
|
25
|
34
|
33
|
34
|
34
|
26
|
18
|
21
|
24
|
40
|
29
|
34
|
42
|
50
|
55
|
73
|
63
|
53
|
48
|
28
|
27
|
30
|
43
|
48
|
46
|
37
|
48
|
35
|
32
|
39
|
36
|
|
2023/09
|
26
|
31
|
17
|
22
|
24
|
39
|
40
|
32
|
37
|
33
|
38
|
27
|
25
|
37
|
27
|
32
|
34
|
32
|
22
|
25
|
32
|
32
|
27
|
36
|
26
|
28
|
34
|
33
|
28
|
31
|
|
|
2023/08
|
25
|
22
|
16
|
25
|
41
|
50
|
43
|
38
|
38
|
42
|
35
|
29
|
32
|
31
|
36
|
29
|
42
|
30
|
27
|
30
|
38
|
41
|
26
|
29
|
21
|
22
|
18
|
23
|
25
|
25
|
27
|
|
2023/07
|
34
|
28
|
30
|
46
|
49
|
47
|
54
|
56
|
56
|
39
|
30
|
29
|
29
|
24
|
19
|
16
|
19
|
27
|
32
|
34
|
39
|
32
|
34
|
29
|
19
|
22
|
14
|
21
|
22
|
25
|
26
|
|
2023/06
|
22
|
48
|
57
|
48
|
48
|
50
|
38
|
33
|
41
|
37
|
54
|
45
|
28
|
30
|
62
|
38
|
34
|
36
|
38
|
43
|
36
|
29
|
29
|
43
|
30
|
27
|
31
|
34
|
39
|
31
|
|
|
2023/05
|
73
|
60
|
39
|
38
|
45
|
34
|
31
|
35
|
44
|
46
|
49
|
62
|
67
|
64
|
61
|
43
|
32
|
36
|
39
|
30
|
44
|
42
|
63
|
66
|
56
|
52
|
36
|
32
|
18
|
26
|
29
|
|
2023/04
|
55
|
60
|
62
|
63
|
50
|
37
|
48
|
64
|
44
|
48
|
63
|
92
|
115
|
86
|
65
|
66
|
63
|
44
|
33
|
29
|
42
|
60
|
69
|
44
|
33
|
55
|
51
|
57
|
49
|
48
|
|
|
2023/03
|
59
|
76
|
54
|
67
|
74
|
71
|
69
|
57
|
57
|
60
|
50
|
59
|
59
|
49
|
55
|
66
|
67
|
49
|
44
|
39
|
61
|
68
|
46
|
40
|
42
|
43
|
85
|
75
|
57
|
26
|
37
|
|
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