Air Quality
Excellent
No health implications.
4
PM2.5
8
PM10
21
O3
0.6
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 May
54
Good
Tue
26 May
51
Good
Wed
27 May
61
Good
Thu
28 May
70
Good
Fri
29 May
85
Good
Sat
30 May
73
Good
Sun
31 May
21
Excellent
Air quality in the last 12 months (Biyang)
|
2026/04
|
56
|
55
|
39
|
82
|
82
|
81
|
67
|
48
|
34
|
61
|
70
|
59
|
46
|
49
|
44
|
51
|
58
|
63
|
70
|
96
|
44
|
31
|
44
|
38
|
50
|
57
|
58
|
64
|
47
|
49
|
|
|
2026/03
|
36
|
45
|
57
|
80
|
70
|
80
|
77
|
85
|
99
|
100
|
111
|
164
|
93
|
116
|
47
|
81
|
84
|
68
|
75
|
80
|
69
|
75
|
93
|
87
|
68
|
73
|
60
|
56
|
66
|
59
|
76
|
|
2026/02
|
88
|
87
|
95
|
104
|
126
|
95
|
77
|
88
|
71
|
81
|
92
|
86
|
82
|
84
|
85
|
50
|
88
|
67
|
67
|
58
|
54
|
133
|
197
|
58
|
42
|
33
|
66
|
52
|
|||
|
2026/01
|
63
|
101
|
109
|
97
|
116
|
52
|
42
|
61
|
62
|
85
|
65
|
76
|
109
|
110
|
88
|
120
|
116
|
64
|
59
|
59
|
59
|
79
|
88
|
112
|
165
|
175
|
152
|
104
|
112
|
95
|
96
|
|
2025/12
|
135
|
109
|
71
|
68
|
102
|
99
|
101
|
123
|
139
|
149
|
203
|
66
|
60
|
69
|
65
|
103
|
160
|
177
|
155
|
159
|
115
|
63
|
76
|
85
|
78
|
79
|
98
|
102
|
109
|
181
|
110
|
|
2025/11
|
57
|
80
|
99
|
95
|
77
|
89
|
27
|
39
|
68
|
81
|
74
|
64
|
94
|
128
|
113
|
104
|
39
|
29
|
34
|
56
|
73
|
68
|
71
|
92
|
88
|
76
|
144
|
90
|
74
|
80
|
|
|
2025/10
|
29
|
15
|
30
|
36
|
36
|
24
|
30
|
55
|
37
|
16
|
24
|
29
|
26
|
43
|
30
|
44
|
15
|
36
|
50
|
44
|
49
|
57
|
65
|
85
|
101
|
65
|
68
|
67
|
78
|
79
|
92
|
|
2025/09
|
29
|
33
|
40
|
33
|
28
|
39
|
43
|
24
|
27
|
28
|
18
|
18
|
35
|
30
|
29
|
37
|
25
|
20
|
13
|
30
|
42
|
21
|
13
|
22
|
38
|
19
|
22
|
32
|
25
|
24
|
|
|
2025/08
|
42
|
28
|
33
|
40
|
42
|
36
|
29
|
26
|
23
|
30
|
26
|
25
|
23
|
27
|
34
|
21
|
26
|
33
|
30
|
24
|
21
|
25
|
26
|
33
|
35
|
35
|
34
|
38
|
29
|
31
|
24
|
|
2025/07
|
20
|
17
|
22
|
20
|
25
|
32
|
31
|
43
|
27
|
32
|
52
|
43
|
34
|
28
|
33
|
45
|
40
|
37
|
38
|
38
|
36
|
31
|
13
|
19
|
26
|
33
|
32
|
28
|
29
|
39
|
43
|
|
2025/06
|
44
|
45
|
54
|
48
|
50
|
47
|
45
|
43
|
41
|
45
|
42
|
46
|
45
|
33
|
35
|
47
|
42
|
25
|
12
|
27
|
39
|
30
|
32
|
30
|
38
|
24
|
21
|
23
|
15
|
22
|
|
|
2025/05
|
69
|
80
|
55
|
51
|
79
|
188
|
146
|
78
|
76
|
42
|
46
|
54
|
56
|
51
|
68
|
59
|
137
|
119
|
115
|
74
|
64
|
67
|
63
|
63
|
57
|
58
|
68
|
69
|
58
|
45
|
26
|
|
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