Air Quality
Excellent
No health implications.
27
PM2.5
41
PM10
60
O3
0.5
CO
6
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Apr
41
Excellent
Sun
28 Apr
39
Excellent
Mon
29 Apr
40
Excellent
Tue
30 Apr
37
Excellent
Wed
1 May
43
Excellent
Thu
2 May
37
Excellent
Air quality in the last 12 months (Meilan)
|
2024/02
|
21
|
20
|
22
|
21
|
20
|
22
|
30
|
11
|
20
|
59
|
54
|
46
|
42
|
33
|
34
|
38
|
33
|
20
|
22
|
35
|
29
|
30
|
34
|
34
|
30
|
34
|
31
|
37
|
29
|
||
|
2024/01
|
54
|
45
|
42
|
39
|
38
|
36
|
38
|
43
|
44
|
42
|
35
|
41
|
36
|
35
|
31
|
42
|
37
|
33
|
28
|
26
|
30
|
29
|
15
|
31
|
39
|
53
|
46
|
23
|
34
|
36
|
26
|
|
2023/12
|
45
|
48
|
47
|
49
|
70
|
44
|
31
|
37
|
35
|
23
|
19
|
21
|
38
|
26
|
27
|
24
|
18
|
29
|
31
|
29
|
34
|
39
|
50
|
44
|
44
|
45
|
53
|
46
|
33
|
38
|
74
|
|
2023/11
|
37
|
29
|
28
|
25
|
23
|
23
|
42
|
16
|
18
|
25
|
15
|
22
|
30
|
33
|
39
|
33
|
37
|
51
|
58
|
59
|
47
|
32
|
38
|
64
|
52
|
43
|
62
|
67
|
37
|
49
|
|
|
2023/10
|
23
|
28
|
23
|
26
|
30
|
35
|
37
|
36
|
25
|
15
|
18
|
34
|
37
|
38
|
57
|
48
|
43
|
25
|
20
|
16
|
22
|
36
|
37
|
36
|
30
|
25
|
15
|
17
|
32
|
37
|
47
|
|
2023/09
|
40
|
32
|
25
|
25
|
33
|
27
|
25
|
20
|
17
|
18
|
18
|
19
|
19
|
16
|
19
|
13
|
12
|
15
|
18
|
17
|
15
|
17
|
17
|
20
|
14
|
12
|
15
|
25
|
20
|
18
|
|
|
2023/08
|
18
|
19
|
14
|
18
|
23
|
26
|
24
|
22
|
25
|
27
|
24
|
16
|
26
|
27
|
21
|
27
|
26
|
28
|
28
|
19
|
17
|
19
|
20
|
21
|
22
|
25
|
26
|
24
|
20
|
26
|
33
|
|
2023/07
|
21
|
18
|
18
|
19
|
19
|
32
|
14
|
16
|
15
|
20
|
19
|
19
|
17
|
17
|
22
|
23
|
26
|
25
|
19
|
19
|
15
|
16
|
14
|
15
|
17
|
16
|
18
|
24
|
30
|
21
|
18
|
|
2023/06
|
36
|
27
|
25
|
19
|
17
|
19
|
17
|
18
|
20
|
22
|
20
|
24
|
26
|
22
|
26
|
20
|
24
|
21
|
21
|
23
|
23
|
22
|
21
|
23
|
24
|
19
|
16
|
17
|
18
|
20
|
|
|
2023/05
|
34
|
32
|
26
|
26
|
28
|
35
|
36
|
25
|
26
|
30
|
18
|
18
|
20
|
24
|
27
|
24
|
37
|
49
|
49
|
38
|
37
|
38
|
42
|
32
|
25
|
24
|
16
|
29
|
27
|
30
|
27
|
|
2023/04
|
27
|
29
|
25
|
28
|
28
|
35
|
35
|
30
|
53
|
38
|
38
|
39
|
39
|
36
|
30
|
48
|
43
|
35
|
36
|
44
|
50
|
37
|
30
|
19
|
31
|
27
|
28
|
26
|
27
|
30
|
|
|
2023/03
|
33
|
54
|
53
|
53
|
55
|
47
|
44
|
38
|
37
|
43
|
44
|
36
|
64
|
54
|
34
|
32
|
36
|
32
|
31
|
25
|
36
|
47
|
48
|
34
|
29
|
24
|
22
|
27
|
29
|
33
|
29
|
|
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