Air Quality
Excellent
No health implications.
7
PM2.5
24
PM10
108
O3
0.3
CO
3
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 May
64
Good
Sun
18 May
57
Good
Mon
19 May
60
Good
Tue
20 May
60
Good
Wed
21 May
63
Good
Thu
22 May
62
Good
Fri
23 May
44
Excellent
Air quality in the last 12 months (Hongta)
|
2025/02
|
49
|
55
|
26
|
36
|
60
|
55
|
38
|
47
|
42
|
35
|
41
|
45
|
56
|
56
|
63
|
68
|
59
|
45
|
49
|
57
|
61
|
57
|
53
|
26
|
29
|
30
|
38
|
46
|
|||
|
2025/01
|
40
|
32
|
41
|
41
|
33
|
52
|
44
|
34
|
39
|
37
|
19
|
40
|
44
|
40
|
67
|
66
|
53
|
46
|
53
|
46
|
48
|
37
|
42
|
28
|
28
|
23
|
37
|
58
|
82
|
34
|
37
|
|
2024/12
|
24
|
24
|
28
|
27
|
25
|
31
|
26
|
28
|
22
|
29
|
34
|
30
|
32
|
28
|
30
|
43
|
29
|
33
|
45
|
39
|
31
|
41
|
31
|
38
|
37
|
38
|
43
|
41
|
42
|
32
|
41
|
|
2024/11
|
33
|
33
|
41
|
42
|
40
|
45
|
31
|
27
|
17
|
21
|
25
|
29
|
23
|
24
|
27
|
28
|
30
|
33
|
34
|
35
|
19
|
27
|
20
|
23
|
25
|
31
|
23
|
11
|
21
|
18
|
|
|
2024/10
|
12
|
14
|
22
|
22
|
33
|
34
|
34
|
42
|
23
|
15
|
29
|
31
|
21
|
25
|
25
|
23
|
22
|
31
|
40
|
29
|
16
|
23
|
17
|
31
|
26
|
29
|
40
|
44
|
42
|
43
|
34
|
|
2024/09
|
27
|
26
|
24
|
28
|
15
|
28
|
31
|
11
|
7
|
9
|
12
|
14
|
27
|
33
|
35
|
20
|
19
|
17
|
24
|
30
|
31
|
17
|
18
|
33
|
37
|
44
|
41
|
28
|
24
|
32
|
|
|
2024/08
|
41
|
36
|
21
|
16
|
18
|
15
|
13
|
12
|
9
|
16
|
28
|
41
|
46
|
39
|
33
|
26
|
33
|
36
|
25
|
37
|
36
|
30
|
18
|
22
|
21
|
16
|
28
|
30
|
27
|
30
|
35
|
|
2024/07
|
12
|
19
|
23
|
13
|
17
|
25
|
17
|
17
|
14
|
13
|
10
|
14
|
20
|
12
|
15
|
17
|
23
|
20
|
16
|
13
|
17
|
17
|
25
|
20
|
26
|
25
|
26
|
33
|
22
|
11
|
18
|
|
2024/06
|
30
|
31
|
29
|
40
|
11
|
16
|
20
|
19
|
13
|
11
|
18
|
19
|
11
|
18
|
12
|
18
|
28
|
29
|
32
|
34
|
23
|
25
|
22
|
20
|
17
|
17
|
18
|
17
|
13
|
13
|
|
|
2024/05
|
52
|
52
|
31
|
50
|
49
|
40
|
34
|
34
|
24
|
23
|
29
|
36
|
19
|
31
|
35
|
15
|
24
|
26
|
33
|
19
|
28
|
38
|
38
|
25
|
30
|
9
|
12
|
20
|
17
|
34
|
18
|
|
2024/04
|
37
|
43
|
55
|
60
|
57
|
77
|
69
|
59
|
64
|
65
|
84
|
80
|
64
|
42
|
50
|
75
|
81
|
76
|
40
|
47
|
44
|
48
|
51
|
48
|
40
|
46
|
48
|
58
|
55
|
52
|
|
|
2024/03
|
51
|
57
|
43
|
32
|
26
|
29
|
35
|
58
|
60
|
51
|
43
|
70
|
63
|
53
|
55
|
62
|
77
|
58
|
61
|
60
|
48
|
30
|
24
|
35
|
32
|
48
|
60
|
49
|
54
|
68
|
62
|
|
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