Air Quality
Excellent
No health implications.
4
PM2.5
15
PM10
37
O3
0.1
CO
2
SO2
2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Jun
30
Excellent
Sun
22 Jun
30
Excellent
Mon
23 Jun
30
Excellent
Tue
24 Jun
30
Excellent
Hualien Air quality rank
Real-time AQI (Monitoring Station in Hualien)
花莲
154
PM2.5
15
PM10
37
O3
0.1
CO
2
SO2
2
NO2
Air quality in the last 12 months (Hualien)
|
2025/05
|
48
|
50
|
46
|
33
|
42
|
40
|
47
|
54
|
54
|
33
|
30
|
36
|
30
|
26
|
22
|
21
|
24
|
16
|
25
|
31
|
22
|
37
|
42
|
21
|
50
|
39
|
23
|
21
|
15
|
37
|
44
|
|
2025/04
|
27
|
40
|
44
|
39
|
45
|
44
|
51
|
55
|
46
|
41
|
34
|
19
|
108
|
99
|
80
|
67
|
65
|
47
|
48
|
29
|
40
|
42
|
33
|
25
|
22
|
30
|
33
|
43
|
29
|
33
|
|
|
2025/03
|
58
|
34
|
24
|
20
|
13
|
17
|
36
|
43
|
27
|
27
|
42
|
35
|
31
|
31
|
34
|
31
|
50
|
49
|
45
|
48
|
48
|
46
|
58
|
68
|
57
|
38
|
58
|
53
|
59
|
26
|
21
|
|
2025/02
|
34
|
17
|
26
|
68
|
56
|
36
|
29
|
48
|
34
|
31
|
38
|
57
|
68
|
47
|
40
|
66
|
68
|
37
|
39
|
25
|
23
|
34
|
19
|
67
|
60
|
57
|
63
|
72
|
|||
|
2025/01
|
47
|
31
|
33
|
27
|
33
|
50
|
64
|
45
|
50
|
39
|
34
|
47
|
46
|
41
|
75
|
50
|
55
|
42
|
46
|
56
|
84
|
47
|
39
|
22
|
34
|
34
|
22
|
42
|
47
|
32
|
36
|
|
2024/12
|
37
|
43
|
31
|
30
|
25
|
30
|
27
|
61
|
23
|
18
|
24
|
19
|
22
|
64
|
73
|
49
|
38
|
44
|
41
|
20
|
42
|
54
|
18
|
19
|
17
|
45
|
64
|
69
|
36
|
37
|
49
|
|
2024/11
|
20
|
18
|
37
|
37
|
46
|
36
|
33
|
31
|
24
|
20
|
19
|
25
|
27
|
22
|
21
|
12
|
21
|
32
|
19
|
14
|
20
|
28
|
30
|
21
|
29
|
20
|
40
|
33
|
41
|
39
|
|
|
2024/10
|
18
|
15
|
20
|
16
|
19
|
19
|
16
|
18
|
37
|
43
|
42
|
29
|
23
|
25
|
23
|
26
|
35
|
34
|
30
|
22
|
29
|
36
|
42
|
35
|
22
|
22
|
24
|
24
|
36
|
36
|
25
|
|
2024/09
|
28
|
25
|
25
|
25
|
22
|
20
|
20
|
13
|
22
|
40
|
49
|
31
|
17
|
22
|
28
|
21
|
28
|
27
|
22
|
21
|
24
|
12
|
13
|
14
|
23
|
15
|
20
|
24
|
25
|
21
|
|
|
2024/08
|
28
|
44
|
43
|
35
|
34
|
20
|
28
|
36
|
40
|
44
|
47
|
50
|
47
|
34
|
30
|
14
|
21
|
19
|
15
|
12
|
22
|
27
|
35
|
40
|
30
|
33
|
45
|
40
|
39
|
30
|
30
|
|
2024/07
|
22
|
20
|
22
|
21
|
26
|
20
|
18
|
19
|
17
|
19
|
27
|
30
|
26
|
24
|
20
|
17
|
20
|
19
|
26
|
24
|
20
|
17
|
24
|
20
|
19
|
20
|
22
|
28
|
22
|
17
|
15
|
|
2024/06
|
13
|
9
|
19
|
32
|
30
|
20
|
19
|
14
|
20
|
14
|
14
|
27
|
27
|
28
|
21
|
17
|
18
|
15
|
17
|
21
|
29
|
33
|
27
|
18
|
18
|
21
|
32
|
18
|
20
|
20
|
|
|
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