Air Quality
Excellent
No health implications.
7
PM2.5
16
PM10
72
O3
0.3
CO
4
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Apr
45
Excellent
Mon
28 Apr
45
Excellent
Tue
29 Apr
47
Excellent
Wed
30 Apr
49
Excellent
Thu
1 May
48
Excellent
Fri
2 May
47
Excellent
Sat
3 May
16
Excellent
Air quality in the last 12 months (Meilan)
|
2025/02
|
33
|
18
|
35
|
23
|
28
|
39
|
43
|
35
|
54
|
43
|
37
|
29
|
37
|
26
|
21
|
20
|
36
|
51
|
45
|
38
|
39
|
28
|
34
|
29
|
32
|
46
|
40
|
29
|
|||
|
2025/01
|
64
|
51
|
64
|
54
|
61
|
71
|
49
|
54
|
69
|
63
|
46
|
43
|
44
|
46
|
43
|
57
|
60
|
51
|
50
|
58
|
43
|
56
|
52
|
40
|
33
|
34
|
35
|
34
|
50
|
51
|
51
|
|
2024/12
|
41
|
35
|
35
|
33
|
40
|
45
|
56
|
39
|
40
|
33
|
36
|
47
|
43
|
42
|
57
|
42
|
41
|
46
|
48
|
53
|
50
|
46
|
54
|
56
|
50
|
48
|
69
|
67
|
59
|
49
|
57
|
|
2024/11
|
49
|
43
|
37
|
37
|
43
|
48
|
54
|
46
|
50
|
51
|
45
|
46
|
48
|
49
|
40
|
40
|
24
|
30
|
27
|
10
|
16
|
28
|
35
|
33
|
30
|
28
|
37
|
40
|
40
|
44
|
|
|
2024/10
|
27
|
30
|
43
|
45
|
37
|
40
|
40
|
53
|
61
|
52
|
38
|
34
|
31
|
23
|
18
|
15
|
16
|
17
|
19
|
28
|
33
|
40
|
28
|
34
|
40
|
46
|
28
|
29
|
26
|
34
|
42
|
|
2024/09
|
12
|
14
|
16
|
25
|
26
|
22
|
21
|
30
|
25
|
18
|
13
|
19
|
22
|
17
|
29
|
30
|
23
|
26
|
22
|
15
|
16
|
14
|
16
|
17
|
20
|
29
|
25
|
21
|
18
|
17
|
|
|
2024/08
|
22
|
22
|
21
|
21
|
20
|
21
|
25
|
26
|
25
|
30
|
28
|
26
|
20
|
21
|
23
|
21
|
16
|
18
|
25
|
21
|
20
|
21
|
19
|
22
|
16
|
21
|
17
|
20
|
26
|
20
|
16
|
|
2024/07
|
19
|
20
|
18
|
15
|
10
|
13
|
11
|
13
|
14
|
17
|
18
|
17
|
14
|
16
|
17
|
16
|
13
|
13
|
17
|
16
|
13
|
14
|
14
|
18
|
16
|
17
|
24
|
25
|
18
|
17
|
19
|
|
2024/06
|
15
|
20
|
17
|
18
|
23
|
15
|
14
|
21
|
19
|
19
|
19
|
19
|
21
|
23
|
24
|
28
|
24
|
23
|
26
|
24
|
20
|
13
|
12
|
12
|
14
|
15
|
13
|
13
|
15
|
17
|
|
|
2024/05
|
28
|
18
|
20
|
20
|
25
|
32
|
24
|
22
|
31
|
32
|
31
|
27
|
21
|
28
|
32
|
32
|
40
|
18
|
16
|
19
|
17
|
13
|
13
|
19
|
17
|
17
|
23
|
21
|
23
|
27
|
18
|
|
2024/04
|
39
|
29
|
28
|
31
|
24
|
35
|
34
|
34
|
34
|
30
|
42
|
35
|
36
|
34
|
37
|
32
|
26
|
35
|
30
|
31
|
28
|
25
|
27
|
36
|
27
|
39
|
45
|
37
|
33
|
35
|
|
|
2024/03
|
16
|
16
|
28
|
24
|
38
|
46
|
41
|
35
|
38
|
35
|
25
|
22
|
29
|
43
|
52
|
40
|
29
|
31
|
27
|
41
|
51
|
43
|
32
|
32
|
41
|
33
|
39
|
36
|
32
|
25
|
32
|
|
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