Air Quality
Excellent
No health implications.
4
PM2.5
12
PM10
29
O3
0.5
CO
4
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 May
37
Excellent
Sat
24 May
38
Excellent
Sun
25 May
44
Excellent
Mon
26 May
37
Excellent
Tue
27 May
36
Excellent
Wed
28 May
22
Excellent
Thu
29 May
26
Excellent
Air quality in the last 12 months (Meilan)
|
2025/04
|
26
|
37
|
30
|
34
|
41
|
33
|
45
|
38
|
39
|
37
|
28
|
33
|
149
|
170
|
152
|
123
|
81
|
53
|
36
|
26
|
24
|
28
|
31
|
30
|
30
|
27
|
17
|
28
|
35
|
34
|
|
|
2025/03
|
28
|
23
|
29
|
25
|
22
|
14
|
13
|
26
|
38
|
52
|
43
|
31
|
27
|
20
|
24
|
21
|
37
|
43
|
54
|
51
|
47
|
45
|
38
|
40
|
41
|
37
|
33
|
30
|
21
|
10
|
20
|
|
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
|
|
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