Air Quality
Excellent
No health implications.
16
PM2.5
49
PM10
36
O3
0.5
CO
11
SO2
52
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 May
104
Light
Sun
31 May
110
Light
Mon
1 Jun
105
Light
Tue
2 Jun
101
Light
Wed
3 Jun
102
Light
Thu
4 Jun
18
Excellent
Fri
5 Jun
23
Excellent
Air quality in the last 12 months (Yiyuan)
|
2026/04
|
106
|
62
|
68
|
44
|
73
|
43
|
53
|
44
|
42
|
61
|
56
|
42
|
46
|
64
|
69
|
52
|
79
|
84
|
78
|
67
|
61
|
32
|
49
|
45
|
49
|
57
|
79
|
43
|
45
|
54
|
|
|
2026/03
|
89
|
96
|
97
|
117
|
71
|
61
|
52
|
65
|
89
|
95
|
123
|
101
|
95
|
126
|
51
|
79
|
84
|
65
|
59
|
92
|
119
|
100
|
95
|
86
|
86
|
91
|
99
|
100
|
77
|
95
|
72
|
|
2026/02
|
193
|
146
|
115
|
134
|
145
|
41
|
44
|
64
|
64
|
82
|
118
|
109
|
107
|
108
|
101
|
70
|
176
|
86
|
103
|
80
|
75
|
150
|
59
|
56
|
70
|
82
|
96
|
107
|
|||
|
2026/01
|
38
|
51
|
112
|
176
|
152
|
203
|
104
|
61
|
84
|
71
|
40
|
78
|
101
|
130
|
180
|
132
|
40
|
44
|
36
|
34
|
43
|
67
|
94
|
139
|
119
|
104
|
134
|
133
|
147
|
88
|
164
|
|
2025/12
|
77
|
41
|
55
|
69
|
70
|
124
|
136
|
63
|
92
|
92
|
82
|
30
|
60
|
82
|
81
|
128
|
91
|
88
|
159
|
84
|
52
|
44
|
61
|
95
|
33
|
51
|
75
|
115
|
136
|
123
|
37
|
|
2025/11
|
108
|
53
|
46
|
63
|
61
|
50
|
81
|
101
|
73
|
59
|
73
|
86
|
94
|
104
|
170
|
121
|
32
|
50
|
61
|
78
|
91
|
119
|
128
|
154
|
38
|
85
|
81
|
108
|
123
|
145
|
|
|
2025/10
|
46
|
18
|
21
|
38
|
12
|
12
|
33
|
37
|
25
|
15
|
17
|
16
|
27
|
41
|
33
|
48
|
46
|
22
|
33
|
31
|
40
|
47
|
42
|
48
|
92
|
95
|
73
|
86
|
59
|
52
|
93
|
|
2025/09
|
24
|
27
|
31
|
35
|
28
|
28
|
48
|
64
|
42
|
47
|
31
|
19
|
32
|
53
|
44
|
30
|
18
|
24
|
12
|
32
|
37
|
31
|
31
|
24
|
41
|
48
|
28
|
30
|
57
|
54
|
|
|
2025/08
|
12
|
14
|
32
|
38
|
39
|
32
|
37
|
33
|
14
|
22
|
27
|
27
|
38
|
34
|
23
|
32
|
23
|
37
|
37
|
30
|
31
|
30
|
30
|
37
|
46
|
28
|
26
|
32
|
32
|
32
|
19
|
|
2025/07
|
29
|
27
|
25
|
24
|
27
|
37
|
31
|
25
|
25
|
34
|
36
|
31
|
40
|
19
|
33
|
31
|
32
|
37
|
37
|
26
|
14
|
11
|
19
|
22
|
26
|
22
|
20
|
18
|
19
|
27
|
24
|
|
2025/06
|
44
|
44
|
44
|
36
|
52
|
51
|
63
|
58
|
55
|
31
|
41
|
40
|
37
|
38
|
32
|
24
|
29
|
38
|
18
|
26
|
30
|
33
|
38
|
37
|
52
|
57
|
38
|
34
|
22
|
22
|
|
|
2025/05
|
50
|
59
|
39
|
43
|
48
|
52
|
60
|
53
|
18
|
27
|
47
|
51
|
52
|
59
|
42
|
67
|
70
|
51
|
79
|
67
|
63
|
63
|
44
|
51
|
45
|
50
|
49
|
46
|
45
|
48
|
58
|
|
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