Air Quality
Excellent
No health implications.
23
PM2.5
42
PM10
117
O3
0.5
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 May
87
Good
Tue
21 May
125
Lightly
Wed
22 May
150
Lightly
Thu
23 May
148
Lightly
Fri
24 May
82
Good
Sat
25 May
83
Good
Sun
26 May
83
Good
Air quality in the last 12 months (Wu'an)
|
2024/02
|
60
|
59
|
91
|
95
|
127
|
179
|
191
|
204
|
151
|
227
|
71
|
82
|
104
|
131
|
51
|
68
|
64
|
103
|
65
|
51
|
44
|
28
|
34
|
40
|
78
|
84
|
83
|
134
|
101
|
||
|
2024/01
|
100
|
167
|
73
|
80
|
95
|
65
|
49
|
86
|
108
|
97
|
134
|
239
|
291
|
112
|
54
|
51
|
109
|
123
|
68
|
50
|
56
|
30
|
38
|
51
|
63
|
62
|
69
|
73
|
120
|
186
|
193
|
|
2023/12
|
43
|
56
|
75
|
100
|
127
|
145
|
85
|
89
|
109
|
51
|
53
|
92
|
89
|
48
|
64
|
32
|
69
|
155
|
165
|
90
|
50
|
77
|
92
|
74
|
83
|
108
|
68
|
126
|
169
|
237
|
112
|
|
2023/11
|
119
|
248
|
114
|
96
|
41
|
38
|
58
|
110
|
85
|
32
|
51
|
66
|
79
|
119
|
116
|
64
|
51
|
66
|
74
|
106
|
168
|
218
|
61
|
46
|
49
|
85
|
86
|
66
|
52
|
53
|
|
|
2023/10
|
39
|
36
|
50
|
68
|
44
|
34
|
37
|
58
|
50
|
47
|
69
|
89
|
106
|
97
|
58
|
71
|
86
|
69
|
33
|
34
|
50
|
57
|
58
|
54
|
56
|
66
|
76
|
98
|
166
|
233
|
161
|
|
2023/09
|
56
|
64
|
67
|
84
|
73
|
76
|
73
|
62
|
59
|
47
|
68
|
46
|
43
|
44
|
55
|
57
|
55
|
56
|
48
|
27
|
36
|
43
|
43
|
29
|
61
|
55
|
59
|
117
|
52
|
40
|
|
|
2023/08
|
25
|
33
|
40
|
51
|
29
|
30
|
37
|
48
|
54
|
60
|
70
|
40
|
50
|
43
|
46
|
64
|
62
|
57
|
68
|
54
|
63
|
58
|
52
|
37
|
48
|
31
|
27
|
32
|
40
|
43
|
62
|
|
2023/07
|
79
|
70
|
50
|
53
|
65
|
79
|
85
|
63
|
67
|
74
|
54
|
26
|
35
|
60
|
37
|
46
|
66
|
79
|
68
|
40
|
31
|
42
|
74
|
60
|
54
|
50
|
52
|
43
|
22
|
14
|
21
|
|
2023/06
|
42
|
48
|
56
|
40
|
64
|
53
|
48
|
45
|
47
|
48
|
73
|
66
|
65
|
74
|
79
|
71
|
72
|
51
|
27
|
67
|
55
|
78
|
63
|
69
|
75
|
72
|
69
|
45
|
54
|
73
|
|
|
2023/05
|
81
|
69
|
82
|
43
|
32
|
33
|
39
|
50
|
48
|
60
|
63
|
67
|
59
|
70
|
80
|
69
|
80
|
57
|
82
|
92
|
80
|
40
|
49
|
52
|
62
|
99
|
40
|
33
|
45
|
48
|
65
|
|
2023/04
|
66
|
84
|
80
|
37
|
34
|
44
|
51
|
57
|
81
|
95
|
471
|
496
|
261
|
326
|
214
|
72
|
85
|
99
|
94
|
117
|
48
|
32
|
34
|
29
|
40
|
59
|
52
|
123
|
81
|
58
|
|
|
2023/03
|
83
|
74
|
65
|
61
|
95
|
126
|
118
|
100
|
82
|
70
|
223
|
98
|
84
|
90
|
127
|
82
|
52
|
79
|
92
|
85
|
92
|
324
|
294
|
134
|
126
|
99
|
94
|
99
|
77
|
76
|
64
|
|
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