1. miaoski
  2. pm25
  3. 109375862
column value
GUID 54dc1e06-61ac-489f-a77f-0c3cd38a10d1
date 2015-07-28 05:20:00
humidity 46
temperature 33.5
pm25 19.648333333333
geox 120.218
geoy 23.006