Air Quality
Excellent
No health implications.
20
PM2.5
42
PM10
125
O3
0.4
CO
7
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 May
77
Good
Sat
4 May
54
Good
Sun
5 May
66
Good
Mon
6 May
79
Good
Tue
7 May
81
Good
Wed
8 May
81
Good
Thu
9 May
83
Good
Air quality in the last 12 months (Yaohai)
|
2024/02
|
20
|
33
|
51
|
60
|
81
|
85
|
93
|
138
|
156
|
272
|
124
|
68
|
43
|
56
|
48
|
31
|
27
|
38
|
74
|
19
|
23
|
39
|
54
|
60
|
84
|
78
|
57
|
67
|
45
|
||
|
2024/01
|
155
|
123
|
91
|
74
|
84
|
154
|
131
|
61
|
124
|
193
|
163
|
105
|
115
|
178
|
55
|
45
|
37
|
53
|
25
|
85
|
86
|
38
|
24
|
42
|
64
|
81
|
87
|
88
|
117
|
107
|
80
|
|
2023/12
|
52
|
65
|
77
|
93
|
97
|
115
|
88
|
70
|
61
|
71
|
20
|
66
|
63
|
38
|
35
|
50
|
28
|
35
|
79
|
89
|
47
|
50
|
61
|
82
|
83
|
88
|
162
|
299
|
195
|
189
|
139
|
|
2023/11
|
72
|
57
|
73
|
94
|
74
|
44
|
53
|
61
|
57
|
46
|
32
|
75
|
56
|
60
|
74
|
107
|
80
|
65
|
70
|
82
|
73
|
67
|
102
|
50
|
54
|
77
|
82
|
96
|
96
|
44
|
|
|
2023/10
|
54
|
30
|
24
|
34
|
53
|
41
|
22
|
35
|
45
|
68
|
55
|
52
|
49
|
65
|
64
|
71
|
70
|
76
|
101
|
42
|
47
|
66
|
68
|
66
|
85
|
110
|
121
|
98
|
72
|
91
|
81
|
|
2023/09
|
43
|
48
|
52
|
39
|
32
|
28
|
37
|
49
|
59
|
58
|
64
|
36
|
24
|
25
|
28
|
43
|
49
|
51
|
60
|
25
|
25
|
25
|
23
|
39
|
47
|
52
|
62
|
61
|
64
|
36
|
|
|
2023/08
|
30
|
32
|
36
|
39
|
50
|
44
|
33
|
34
|
36
|
50
|
61
|
55
|
46
|
37
|
35
|
44
|
47
|
44
|
42
|
43
|
48
|
36
|
51
|
57
|
58
|
54
|
34
|
25
|
36
|
44
|
42
|
|
2023/07
|
42
|
40
|
30
|
26
|
35
|
45
|
22
|
22
|
23
|
32
|
37
|
41
|
43
|
35
|
48
|
57
|
33
|
26
|
28
|
21
|
23
|
18
|
23
|
33
|
41
|
39
|
29
|
17
|
14
|
19
|
26
|
|
2023/06
|
57
|
80
|
73
|
56
|
27
|
43
|
50
|
45
|
65
|
59
|
61
|
66
|
68
|
64
|
74
|
66
|
49
|
21
|
23
|
33
|
53
|
54
|
50
|
25
|
30
|
30
|
33
|
29
|
30
|
31
|
|
|
2023/05
|
86
|
69
|
48
|
42
|
32
|
53
|
46
|
40
|
49
|
54
|
76
|
70
|
70
|
74
|
72
|
60
|
40
|
41
|
41
|
66
|
86
|
138
|
72
|
50
|
56
|
60
|
29
|
34
|
43
|
31
|
43
|
|
2023/04
|
66
|
69
|
44
|
36
|
29
|
47
|
65
|
57
|
65
|
69
|
142
|
389
|
114
|
70
|
106
|
101
|
93
|
71
|
66
|
64
|
56
|
63
|
41
|
42
|
47
|
51
|
59
|
49
|
137
|
84
|
|
|
2023/03
|
92
|
97
|
79
|
92
|
91
|
74
|
71
|
89
|
79
|
72
|
70
|
120
|
71
|
76
|
132
|
111
|
21
|
40
|
59
|
76
|
76
|
38
|
167
|
113
|
60
|
89
|
110
|
95
|
72
|
53
|
56
|
|
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