Air Quality
Excellent
No health implications.
15
PM2.5
35
PM10
51
O3
0.5
CO
5
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 May
105
Light
Mon
5 May
125
Light
Tue
6 May
86
Good
Wed
7 May
76
Good
Thu
8 May
89
Good
Fri
9 May
30
Excellent
Sat
10 May
21
Excellent
Air quality in the last 12 months (Yijun)
|
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
|
|
2024/06
|
63
|
31
|
38
|
37
|
34
|
42
|
34
|
42
|
38
|
41
|
49
|
51
|
46
|
43
|
51
|
46
|
38
|
38
|
40
|
40
|
38
|
55
|
65
|
95
|
91
|
74
|
58
|
60
|
54
|
31
|
|
|
2024/05
|
38
|
38
|
35
|
37
|
41
|
41
|
49
|
51
|
49
|
47
|
94
|
59
|
53
|
56
|
70
|
55
|
67
|
62
|
53
|
51
|
55
|
53
|
46
|
44
|
54
|
44
|
41
|
48
|
36
|
56
|
66
|
|
2024/04
|
60
|
47
|
47
|
59
|
58
|
62
|
67
|
59
|
54
|
54
|
48
|
46
|
45
|
55
|
91
|
66
|
67
|
59
|
84
|
107
|
104
|
83
|
202
|
103
|
62
|
52
|
63
|
55
|
51
|
38
|
|
|
2024/03
|
41
|
57
|
57
|
65
|
87
|
53
|
80
|
63
|
76
|
74
|
72
|
59
|
73
|
63
|
68
|
200
|
112
|
109
|
130
|
92
|
73
|
107
|
97
|
29
|
38
|
60
|
64
|
63
|
65
|
58
|
63
|
|
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