Air Quality
Excellent
No health implications.
11
PM2.5
34
PM10
54
O3
0.6
CO
4
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Jul
61
Good
Wed
23 Jul
63
Good
Thu
24 Jul
87
Good
Fri
25 Jul
94
Good
Sat
26 Jul
84
Good
Sun
27 Jul
17
Excellent
Mon
28 Jul
20
Excellent
Yijun Air quality rank
Air quality in the last 12 months (Yijun)
|
2025/06
|
31
|
37
|
38
|
48
|
40
|
50
|
49
|
42
|
50
|
49
|
52
|
54
|
52
|
49
|
49
|
61
|
49
|
32
|
25
|
31
|
34
|
36
|
35
|
40
|
27
|
25
|
26
|
25
|
35
|
24
|
|
|
2025/05
|
104
|
92
|
57
|
68
|
211
|
311
|
132
|
89
|
59
|
48
|
44
|
50
|
48
|
74
|
61
|
71
|
231
|
92
|
62
|
59
|
57
|
92
|
53
|
52
|
36
|
31
|
40
|
44
|
51
|
53
|
29
|
|
2025/04
|
60
|
62
|
81
|
105
|
74
|
82
|
81
|
97
|
101
|
64
|
145
|
269
|
95
|
63
|
53
|
139
|
99
|
87
|
74
|
62
|
85
|
175
|
88
|
59
|
61
|
61
|
48
|
39
|
54
|
127
|
|
|
2025/03
|
98
|
67
|
25
|
48
|
65
|
59
|
72
|
72
|
61
|
64
|
173
|
172
|
87
|
59
|
46
|
40
|
41
|
42
|
40
|
45
|
55
|
63
|
101
|
175
|
89
|
187
|
169
|
125
|
58
|
59
|
62
|
|
2025/02
|
144
|
96
|
36
|
36
|
37
|
58
|
80
|
35
|
52
|
63
|
64
|
72
|
60
|
66
|
54
|
73
|
69
|
67
|
78
|
102
|
112
|
97
|
37
|
48
|
67
|
64
|
71
|
79
|
|||
|
2025/01
|
68
|
59
|
61
|
81
|
78
|
46
|
41
|
42
|
45
|
60
|
73
|
83
|
83
|
48
|
35
|
56
|
73
|
87
|
77
|
90
|
85
|
125
|
182
|
154
|
42
|
71
|
52
|
73
|
114
|
114
|
156
|
|
2024/12
|
53
|
53
|
56
|
65
|
53
|
53
|
43
|
39
|
69
|
72
|
95
|
84
|
51
|
44
|
51
|
64
|
66
|
45
|
74
|
81
|
41
|
54
|
79
|
105
|
90
|
59
|
43
|
47
|
60
|
63
|
67
|
|
2024/11
|
61
|
47
|
48
|
41
|
52
|
70
|
91
|
94
|
85
|
120
|
108
|
95
|
45
|
28
|
48
|
59
|
38
|
31
|
48
|
46
|
58
|
65
|
93
|
88
|
40
|
40
|
60
|
50
|
42
|
43
|
|
|
2024/10
|
53
|
48
|
42
|
48
|
60
|
76
|
56
|
77
|
72
|
43
|
59
|
58
|
54
|
68
|
73
|
73
|
56
|
28
|
22
|
24
|
29
|
28
|
39
|
54
|
56
|
49
|
40
|
48
|
64
|
57
|
53
|
|
2024/09
|
45
|
39
|
31
|
35
|
33
|
35
|
32
|
37
|
45
|
43
|
42
|
30
|
37
|
28
|
45
|
37
|
36
|
32
|
29
|
24
|
21
|
35
|
49
|
64
|
71
|
65
|
70
|
63
|
33
|
30
|
|
|
2024/08
|
33
|
40
|
31
|
29
|
33
|
34
|
22
|
26
|
50
|
113
|
42
|
27
|
29
|
40
|
29
|
31
|
38
|
35
|
26
|
30
|
30
|
34
|
40
|
41
|
38
|
20
|
19
|
27
|
28
|
30
|
34
|
|
2024/07
|
27
|
33
|
35
|
28
|
36
|
40
|
29
|
19
|
33
|
48
|
40
|
42
|
49
|
50
|
35
|
15
|
20
|
23
|
29
|
20
|
46
|
23
|
25
|
37
|
63
|
55
|
46
|
49
|
35
|
24
|
39
|
|
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