Air Quality
Excellent
No health implications.
21
PM2.5
46
PM10
112
O3
0.3
CO
2
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 May
97
Good
Fri
16 May
126
Light
Sat
17 May
68
Good
Sun
18 May
72
Good
Mon
19 May
95
Good
Tue
20 May
95
Good
Wed
21 May
18
Excellent
Air quality in the last 12 months (Yuhua)
|
2025/02
|
104
|
154
|
52
|
40
|
35
|
101
|
34
|
29
|
55
|
88
|
123
|
104
|
57
|
77
|
68
|
46
|
54
|
61
|
65
|
73
|
82
|
70
|
38
|
58
|
70
|
74
|
97
|
141
|
|||
|
2025/01
|
78
|
59
|
66
|
87
|
76
|
35
|
40
|
48
|
39
|
44
|
57
|
55
|
73
|
64
|
46
|
53
|
78
|
106
|
70
|
89
|
97
|
73
|
74
|
82
|
123
|
80
|
29
|
68
|
214
|
99
|
91
|
|
2024/12
|
63
|
41
|
59
|
87
|
45
|
45
|
30
|
30
|
64
|
80
|
72
|
84
|
71
|
46
|
42
|
44
|
49
|
40
|
56
|
60
|
29
|
40
|
55
|
87
|
110
|
64
|
49
|
45
|
60
|
72
|
78
|
|
2024/11
|
68
|
65
|
95
|
33
|
48
|
66
|
118
|
189
|
206
|
210
|
135
|
160
|
131
|
66
|
61
|
68
|
57
|
49
|
58
|
55
|
54
|
59
|
86
|
124
|
81
|
31
|
44
|
39
|
43
|
59
|
|
|
2024/10
|
43
|
30
|
41
|
56
|
78
|
120
|
93
|
86
|
88
|
89
|
72
|
121
|
180
|
165
|
122
|
61
|
89
|
57
|
28
|
36
|
57
|
52
|
52
|
84
|
139
|
186
|
104
|
64
|
115
|
133
|
105
|
|
2024/09
|
51
|
28
|
30
|
54
|
32
|
28
|
47
|
51
|
75
|
35
|
24
|
32
|
40
|
48
|
54
|
58
|
61
|
55
|
43
|
38
|
20
|
29
|
40
|
59
|
88
|
122
|
116
|
116
|
109
|
25
|
|
|
2024/08
|
47
|
48
|
47
|
37
|
30
|
41
|
36
|
36
|
43
|
69
|
25
|
25
|
24
|
36
|
52
|
47
|
34
|
31
|
34
|
29
|
27
|
43
|
47
|
42
|
38
|
18
|
21
|
28
|
38
|
56
|
62
|
|
2024/07
|
50
|
47
|
64
|
66
|
70
|
51
|
63
|
53
|
56
|
70
|
68
|
70
|
49
|
78
|
84
|
46
|
51
|
47
|
55
|
46
|
50
|
47
|
60
|
60
|
35
|
40
|
38
|
40
|
41
|
30
|
40
|
|
2024/06
|
45
|
54
|
44
|
66
|
44
|
66
|
76
|
61
|
53
|
48
|
58
|
65
|
87
|
59
|
47
|
54
|
58
|
56
|
58
|
56
|
56
|
67
|
99
|
50
|
47
|
69
|
52
|
62
|
57
|
52
|
|
|
2024/05
|
44
|
60
|
61
|
66
|
62
|
55
|
58
|
68
|
71
|
60
|
122
|
52
|
70
|
89
|
41
|
56
|
68
|
74
|
87
|
52
|
57
|
68
|
75
|
56
|
49
|
49
|
39
|
49
|
66
|
53
|
43
|
|
2024/04
|
97
|
78
|
63
|
52
|
80
|
105
|
101
|
127
|
49
|
75
|
99
|
73
|
69
|
60
|
82
|
72
|
84
|
93
|
81
|
61
|
69
|
84
|
68
|
61
|
84
|
81
|
79
|
56
|
53
|
47
|
|
|
2024/03
|
61
|
64
|
80
|
67
|
82
|
97
|
76
|
36
|
69
|
98
|
76
|
79
|
80
|
92
|
109
|
82
|
58
|
82
|
67
|
72
|
89
|
101
|
103
|
86
|
51
|
76
|
115
|
317
|
196
|
80
|
86
|
|
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