Air Quality
Excellent
No health implications.
9
PM2.5
28
PM10
97
O3
0.5
CO
4
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Feb
50
Excellent
Wed
26 Feb
55
Good
Thu
27 Feb
74
Good
Fri
28 Feb
87
Good
Sat
1 Mar
86
Good
Sun
2 Mar
65
Good
Mon
3 Mar
40
Excellent
Air quality in the last 12 months (Chenghua)
|
2025/01
|
129
|
116
|
140
|
140
|
90
|
84
|
61
|
49
|
54
|
57
|
42
|
76
|
92
|
66
|
65
|
70
|
87
|
61
|
79
|
92
|
125
|
157
|
220
|
87
|
37
|
66
|
76
|
81
|
236
|
102
|
60
|
|
2024/12
|
78
|
115
|
109
|
72
|
52
|
38
|
33
|
22
|
30
|
52
|
59
|
61
|
47
|
49
|
64
|
71
|
109
|
149
|
106
|
94
|
89
|
60
|
44
|
64
|
76
|
81
|
109
|
92
|
68
|
70
|
70
|
|
2024/11
|
39
|
41
|
44
|
32
|
38
|
48
|
57
|
90
|
55
|
31
|
43
|
39
|
28
|
57
|
67
|
35
|
25
|
12
|
15
|
24
|
37
|
46
|
52
|
43
|
21
|
37
|
40
|
56
|
57
|
64
|
|
|
2024/10
|
24
|
32
|
24
|
28
|
37
|
53
|
37
|
39
|
62
|
45
|
30
|
38
|
48
|
60
|
68
|
64
|
26
|
37
|
27
|
11
|
17
|
35
|
51
|
65
|
51
|
34
|
32
|
37
|
67
|
53
|
46
|
|
2024/09
|
35
|
46
|
31
|
41
|
28
|
39
|
33
|
37
|
36
|
18
|
24
|
30
|
35
|
27
|
19
|
37
|
33
|
45
|
47
|
47
|
19
|
29
|
36
|
51
|
73
|
74
|
77
|
89
|
40
|
15
|
|
|
2024/08
|
38
|
37
|
30
|
16
|
24
|
32
|
27
|
35
|
39
|
35
|
50
|
57
|
54
|
59
|
37
|
45
|
42
|
40
|
33
|
47
|
66
|
66
|
58
|
38
|
53
|
43
|
49
|
51
|
37
|
37
|
34
|
|
2024/07
|
22
|
32
|
19
|
20
|
40
|
41
|
38
|
15
|
11
|
19
|
28
|
28
|
19
|
13
|
14
|
21
|
21
|
18
|
22
|
19
|
24
|
25
|
33
|
29
|
41
|
57
|
54
|
29
|
24
|
27
|
33
|
|
2024/06
|
50
|
30
|
40
|
29
|
29
|
39
|
35
|
37
|
36
|
56
|
30
|
30
|
42
|
62
|
57
|
44
|
23
|
37
|
35
|
35
|
35
|
31
|
49
|
43
|
30
|
24
|
23
|
25
|
40
|
47
|
|
|
2024/05
|
47
|
31
|
21
|
28
|
44
|
59
|
67
|
47
|
42
|
61
|
60
|
55
|
43
|
53
|
60
|
57
|
65
|
74
|
43
|
28
|
34
|
45
|
54
|
50
|
48
|
37
|
40
|
26
|
19
|
31
|
51
|
|
2024/04
|
50
|
55
|
71
|
57
|
31
|
36
|
31
|
39
|
43
|
33
|
32
|
40
|
57
|
71
|
77
|
51
|
54
|
29
|
25
|
58
|
87
|
56
|
32
|
29
|
33
|
62
|
57
|
110
|
59
|
18
|
|
|
2024/03
|
64
|
58
|
87
|
91
|
73
|
60
|
72
|
79
|
84
|
88
|
53
|
72
|
34
|
36
|
66
|
74
|
84
|
51
|
55
|
65
|
67
|
80
|
91
|
47
|
24
|
36
|
49
|
42
|
57
|
47
|
41
|
|
2024/02
|
83
|
54
|
30
|
28
|
34
|
51
|
46
|
84
|
86
|
144
|
127
|
119
|
122
|
96
|
38
|
31
|
50
|
65
|
162
|
274
|
43
|
51
|
25
|
44
|
62
|
60
|
64
|
75
|
50
|
||
|
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