Air Quality
Excellent
No health implications.
15
PM2.5
36
PM10
101
O3
0.3
CO
4
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 May
84
Good
Sun
4 May
93
Good
Mon
5 May
95
Good
Tue
6 May
89
Good
Wed
7 May
91
Good
Thu
8 May
91
Good
Fri
9 May
41
Excellent
Air quality in the last 12 months (Pei County)
|
2025/02
|
134
|
161
|
125
|
56
|
53
|
58
|
64
|
43
|
62
|
67
|
96
|
116
|
91
|
81
|
102
|
89
|
58
|
72
|
65
|
55
|
66
|
90
|
69
|
51
|
76
|
110
|
118
|
116
|
|||
|
2025/01
|
116
|
169
|
87
|
124
|
167
|
81
|
70
|
65
|
50
|
50
|
93
|
104
|
104
|
118
|
60
|
76
|
88
|
113
|
123
|
138
|
168
|
164
|
90
|
75
|
93
|
90
|
44
|
73
|
137
|
100
|
177
|
|
2024/12
|
92
|
93
|
62
|
125
|
174
|
158
|
123
|
57
|
61
|
97
|
114
|
60
|
87
|
83
|
77
|
95
|
123
|
53
|
60
|
102
|
76
|
59
|
86
|
105
|
147
|
134
|
79
|
74
|
66
|
106
|
115
|
|
2024/11
|
109
|
89
|
99
|
79
|
46
|
62
|
48
|
42
|
45
|
64
|
81
|
103
|
115
|
73
|
76
|
81
|
48
|
43
|
42
|
51
|
85
|
71
|
45
|
48
|
41
|
47
|
56
|
56
|
57
|
66
|
|
|
2024/10
|
36
|
29
|
40
|
45
|
44
|
33
|
44
|
60
|
57
|
85
|
75
|
83
|
69
|
88
|
107
|
99
|
38
|
20
|
36
|
40
|
52
|
71
|
59
|
61
|
74
|
64
|
134
|
75
|
82
|
105
|
101
|
|
2024/09
|
44
|
35
|
36
|
41
|
48
|
31
|
40
|
36
|
33
|
43
|
39
|
33
|
48
|
61
|
36
|
47
|
27
|
18
|
28
|
30
|
24
|
34
|
37
|
47
|
50
|
63
|
67
|
37
|
36
|
36
|
|
|
2024/08
|
28
|
24
|
29
|
32
|
25
|
13
|
33
|
17
|
39
|
56
|
116
|
45
|
44
|
47
|
35
|
42
|
35
|
37
|
23
|
34
|
43
|
43
|
44
|
54
|
53
|
38
|
12
|
30
|
37
|
36
|
41
|
|
2024/07
|
45
|
51
|
38
|
20
|
27
|
17
|
22
|
22
|
30
|
79
|
75
|
67
|
59
|
34
|
32
|
26
|
15
|
29
|
28
|
16
|
30
|
35
|
38
|
49
|
34
|
30
|
17
|
17
|
21
|
28
|
27
|
|
2024/06
|
40
|
63
|
73
|
58
|
56
|
48
|
56
|
63
|
65
|
69
|
63
|
64
|
70
|
65
|
46
|
56
|
42
|
47
|
51
|
48
|
51
|
60
|
68
|
108
|
94
|
50
|
59
|
45
|
38
|
33
|
|
|
2024/05
|
52
|
47
|
55
|
44
|
56
|
69
|
62
|
56
|
52
|
59
|
129
|
113
|
94
|
79
|
71
|
59
|
69
|
68
|
56
|
56
|
45
|
48
|
44
|
56
|
48
|
50
|
40
|
50
|
53
|
53
|
80
|
|
2024/04
|
75
|
88
|
71
|
44
|
61
|
61
|
59
|
70
|
74
|
79
|
62
|
66
|
50
|
23
|
37
|
82
|
92
|
86
|
72
|
77
|
62
|
69
|
81
|
84
|
69
|
66
|
49
|
37
|
57
|
58
|
|
|
2024/03
|
69
|
74
|
75
|
84
|
85
|
89
|
105
|
62
|
67
|
101
|
102
|
78
|
80
|
54
|
52
|
98
|
125
|
68
|
89
|
80
|
82
|
81
|
85
|
55
|
52
|
60
|
73
|
84
|
71
|
104
|
81
|
|
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