Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Apr
Mon
20 Apr
Tue
21 Apr
Wed
22 Apr
Real-time AQI (Monitoring Station in Hsinchu)
湖口
4111
PM2.5
27
PM10
108
O3
0.3
CO
6
SO2
12
NO2
竹东
4912
PM2.5
13
PM10
109
O3
0.3
CO
3
SO2
4
NO2
Air quality in the last 12 months (Hsinchu)
|
2026/03
|
34
|
42
|
27
|
33
|
26
|
39
|
46
|
35
|
36
|
42
|
38
|
43
|
55
|
42
|
41
|
32
|
39
|
49
|
28
|
41
|
35
|
39
|
32
|
30
|
40
|
34
|
42
|
37
|
51
|
41
|
43
|
|
2026/02
|
19
|
38
|
51
|
31
|
36
|
40
|
24
|
43
|
38
|
36
|
44
|
56
|
48
|
50
|
31
|
35
|
33
|
47
|
53
|
69
|
54
|
63
|
104
|
68
|
28
|
44
|
49
|
27
|
|||
|
2026/01
|
22
|
27
|
39
|
32
|
46
|
36
|
43
|
50
|
59
|
55
|
62
|
58
|
58
|
50
|
46
|
51
|
49
|
21
|
33
|
27
|
39
|
50
|
43
|
44
|
44
|
32
|
22
|
28
|
35
|
35
|
17
|
|
2025/12
|
44
|
45
|
50
|
36
|
30
|
29
|
32
|
43
|
38
|
29
|
35
|
47
|
49
|
39
|
52
|
40
|
49
|
58
|
49
|
47
|
68
|
27
|
33
|
51
|
23
|
34
|
23
|
27
|
30
|
42
|
33
|
|
2025/11
|
30
|
54
|
42
|
15
|
19
|
22
|
38
|
35
|
31
|
41
|
22
|
8
|
12
|
35
|
42
|
31
|
32
|
23
|
29
|
41
|
46
|
51
|
43
|
40
|
53
|
76
|
60
|
104
|
81
|
53
|
|
|
2025/10
|
20
|
15
|
16
|
18
|
25
|
29
|
21
|
25
|
21
|
22
|
23
|
20
|
19
|
31
|
16
|
29
|
29
|
32
|
25
|
26
|
19
|
24
|
29
|
29
|
34
|
46
|
41
|
23
|
24
|
31
|
34
|
|
2025/09
|
23
|
32
|
29
|
33
|
22
|
21
|
18
|
21
|
20
|
28
|
25
|
26
|
37
|
30
|
23
|
21
|
21
|
20
|
17
|
22
|
24
|
24
|
30
|
30
|
21
|
18
|
17
|
18
|
23
|
22
|
|
|
2025/08
|
34
|
32
|
34
|
19
|
17
|
31
|
42
|
47
|
33
|
23
|
25
|
24
|
31
|
28
|
19
|
20
|
21
|
16
|
21
|
32
|
33
|
30
|
24
|
21
|
17
|
14
|
13
|
15
|
16
|
16
|
17
|
|
2025/07
|
17
|
21
|
24
|
25
|
16
|
18
|
23
|
39
|
29
|
16
|
12
|
25
|
37
|
41
|
35
|
38
|
34
|
21
|
30
|
31
|
18
|
18
|
20
|
22
|
20
|
29
|
30
|
30
|
19
|
36
|
47
|
|
2025/06
|
45
|
40
|
16
|
27
|
28
|
24
|
19
|
27
|
23
|
20
|
18
|
22
|
25
|
27
|
30
|
27
|
28
|
28
|
24
|
20
|
22
|
27
|
31
|
32
|
23
|
19
|
19
|
22
|
16
|
14
|
|
|
2025/05
|
50
|
51
|
50
|
32
|
43
|
41
|
46
|
52
|
47
|
30
|
29
|
35
|
30
|
27
|
22
|
24
|
25
|
18
|
25
|
34
|
24
|
38
|
46
|
20
|
52
|
40
|
26
|
21
|
13
|
36
|
42
|
|
2025/04
|
23
|
37
|
41
|
39
|
45
|
46
|
53
|
56
|
51
|
43
|
38
|
20
|
109
|
96
|
76
|
66
|
65
|
51
|
46
|
29
|
45
|
43
|
32
|
24
|
21
|
30
|
33
|
43
|
30
|
34
|
|
|
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
*: primary pollution