Air Quality
Excellent
No health implications.
18
PM2.5
42
PM10
85
O3
0.4
CO
7
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Apr
76
Good
Tue
14 Apr
87
Good
Wed
15 Apr
100
Good
Thu
16 Apr
67
Good
Fri
17 Apr
91
Good
Sat
18 Apr
96
Good
Sun
19 Apr
33
Excellent
Air quality in the last 12 months (Pei County)
|
2026/03
|
60
|
56
|
152
|
113
|
50
|
76
|
65
|
53
|
98
|
110
|
90
|
142
|
90
|
114
|
133
|
118
|
94
|
75
|
59
|
101
|
126
|
101
|
118
|
84
|
87
|
75
|
101
|
87
|
74
|
96
|
110
|
|
2026/02
|
110
|
130
|
139
|
111
|
154
|
61
|
54
|
51
|
58
|
85
|
128
|
95
|
98
|
86
|
97
|
46
|
189
|
119
|
96
|
72
|
57
|
284
|
82
|
42
|
58
|
59
|
78
|
95
|
|||
|
2026/01
|
53
|
68
|
103
|
117
|
215
|
193
|
84
|
68
|
74
|
105
|
55
|
74
|
116
|
148
|
149
|
137
|
57
|
50
|
49
|
37
|
49
|
80
|
99
|
140
|
126
|
95
|
156
|
92
|
75
|
91
|
89
|
|
2025/12
|
105
|
78
|
58
|
95
|
79
|
121
|
147
|
69
|
73
|
88
|
122
|
47
|
73
|
80
|
73
|
118
|
193
|
112
|
172
|
144
|
63
|
41
|
74
|
76
|
67
|
46
|
70
|
99
|
121
|
147
|
64
|
|
2025/11
|
124
|
74
|
59
|
69
|
79
|
55
|
60
|
78
|
89
|
66
|
59
|
65
|
107
|
167
|
196
|
151
|
39
|
54
|
70
|
86
|
147
|
122
|
100
|
120
|
53
|
88
|
229
|
134
|
109
|
161
|
|
|
2025/10
|
32
|
13
|
30
|
42
|
40
|
31
|
47
|
53
|
34
|
41
|
39
|
25
|
27
|
43
|
38
|
36
|
37
|
34
|
37
|
38
|
41
|
50
|
52
|
59
|
100
|
95
|
94
|
71
|
58
|
60
|
151
|
|
2025/09
|
28
|
36
|
32
|
40
|
46
|
40
|
54
|
40
|
36
|
43
|
30
|
13
|
47
|
50
|
35
|
27
|
22
|
24
|
15
|
39
|
44
|
32
|
21
|
29
|
42
|
46
|
37
|
33
|
53
|
44
|
|
|
2025/08
|
22
|
26
|
31
|
41
|
39
|
33
|
39
|
36
|
25
|
22
|
18
|
23
|
19
|
30
|
35
|
32
|
36
|
41
|
40
|
35
|
33
|
34
|
26
|
33
|
54
|
46
|
34
|
47
|
53
|
36
|
30
|
|
2025/07
|
33
|
30
|
30
|
26
|
32
|
33
|
44
|
37
|
27
|
52
|
56
|
39
|
44
|
34
|
41
|
41
|
40
|
40
|
50
|
34
|
28
|
28
|
29
|
29
|
32
|
29
|
27
|
29
|
27
|
30
|
30
|
|
2025/06
|
48
|
43
|
61
|
65
|
67
|
64
|
50
|
68
|
59
|
54
|
65
|
48
|
48
|
51
|
49
|
59
|
48
|
39
|
24
|
27
|
46
|
47
|
47
|
45
|
54
|
46
|
37
|
32
|
12
|
25
|
|
|
2025/05
|
62
|
81
|
50
|
51
|
55
|
86
|
75
|
60
|
22
|
31
|
51
|
53
|
56
|
59
|
81
|
91
|
99
|
66
|
83
|
66
|
62
|
70
|
70
|
62
|
51
|
53
|
62
|
54
|
58
|
61
|
68
|
|
2025/04
|
69
|
50
|
54
|
66
|
81
|
74
|
76
|
86
|
82
|
83
|
62
|
164
|
81
|
64
|
56
|
67
|
90
|
98
|
64
|
62
|
48
|
77
|
83
|
87
|
68
|
59
|
62
|
56
|
56
|
73
|
|
|
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