Air Quality
Excellent
No health implications.
22
PM2.5
37
PM10
60
O3
0.5
CO
2
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
2 May
43
Excellent
Fri
3 May
45
Excellent
Sat
4 May
67
Good
Sun
5 May
87
Good
Mon
6 May
96
Good
Tue
7 May
106
Lightly
Wed
8 May
105
Lightly
Air quality in the last 12 months (Chenghua)
|
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
|
||
|
2024/01
|
186
|
121
|
101
|
85
|
100
|
104
|
115
|
147
|
117
|
107
|
139
|
166
|
202
|
144
|
116
|
48
|
51
|
67
|
55
|
39
|
35
|
38
|
41
|
35
|
42
|
61
|
56
|
62
|
96
|
105
|
110
|
|
2023/12
|
34
|
49
|
73
|
87
|
67
|
82
|
103
|
150
|
169
|
229
|
124
|
60
|
56
|
59
|
58
|
57
|
66
|
62
|
68
|
54
|
85
|
117
|
112
|
85
|
104
|
126
|
171
|
170
|
178
|
184
|
194
|
|
2023/11
|
83
|
91
|
54
|
65
|
44
|
43
|
64
|
61
|
80
|
72
|
44
|
39
|
25
|
35
|
39
|
53
|
61
|
75
|
88
|
86
|
140
|
90
|
91
|
140
|
99
|
43
|
60
|
91
|
73
|
47
|
|
|
2023/10
|
62
|
37
|
40
|
39
|
23
|
18
|
23
|
39
|
27
|
34
|
39
|
22
|
32
|
42
|
52
|
61
|
65
|
34
|
21
|
36
|
56
|
63
|
71
|
101
|
126
|
61
|
26
|
37
|
47
|
75
|
88
|
|
2023/09
|
36
|
60
|
74
|
70
|
72
|
67
|
64
|
51
|
48
|
35
|
24
|
25
|
42
|
41
|
51
|
65
|
63
|
40
|
32
|
37
|
32
|
27
|
25
|
22
|
22
|
28
|
41
|
82
|
49
|
36
|
|
|
2023/08
|
35
|
29
|
27
|
27
|
32
|
25
|
29
|
27
|
30
|
33
|
29
|
27
|
44
|
37
|
44
|
61
|
54
|
53
|
50
|
29
|
57
|
47
|
45
|
31
|
27
|
22
|
33
|
47
|
42
|
39
|
42
|
|
2023/07
|
45
|
62
|
46
|
28
|
56
|
69
|
63
|
85
|
69
|
70
|
50
|
28
|
24
|
34
|
84
|
58
|
63
|
56
|
50
|
28
|
47
|
41
|
43
|
34
|
37
|
25
|
19
|
23
|
40
|
34
|
31
|
|
2023/06
|
29
|
21
|
21
|
25
|
29
|
52
|
52
|
56
|
68
|
68
|
36
|
53
|
50
|
38
|
36
|
41
|
53
|
84
|
48
|
62
|
36
|
51
|
51
|
67
|
61
|
74
|
65
|
45
|
41
|
40
|
|
|
2023/05
|
68
|
49
|
56
|
55
|
68
|
51
|
34
|
20
|
14
|
23
|
30
|
48
|
46
|
57
|
73
|
103
|
94
|
41
|
49
|
57
|
63
|
43
|
51
|
69
|
62
|
49
|
44
|
58
|
62
|
88
|
54
|
|
2023/04
|
63
|
78
|
30
|
38
|
34
|
55
|
82
|
86
|
68
|
96
|
97
|
60
|
61
|
68
|
71
|
90
|
90
|
51
|
56
|
42
|
38
|
21
|
22
|
26
|
36
|
57
|
63
|
57
|
55
|
70
|
|
|
2023/03
|
76
|
84
|
96
|
75
|
94
|
74
|
76
|
98
|
75
|
61
|
73
|
50
|
40
|
67
|
88
|
63
|
38
|
42
|
73
|
52
|
67
|
67
|
36
|
31
|
36
|
36
|
28
|
54
|
52
|
61
|
72
|
|
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