1. miaoski
  2. pm25
  3. 110828112
column value
GUID 54dc1e06-61ac-489f-a77f-0c3cd38a10d1
date 2015-09-09T14:13:00
humidity 41
temperature 30.5
pm25 4.5758333333333
geox 120.218
geoy 23.006