About Geographic Values
Table of contents
Missing Values
The hazardous waste data sets are w.r.t. facilities in the states and territories of the U.S.A. The locations of these facilities are encoded by the fac_latitude & fac_longitude fields. However, a number of facilities do not have fac_latitude & fac_longitude values. Hence, the latitude & longitude values of such facilities are determined via geopy.
Decimals
Each EPA fac_latitude & fac_longitude value is a degrees, minutes, seconds value; format DDMMSS. The values are converted to decimal form via the formula
\[DD + \frac{MM}{60} + \frac{SS}{3600}\]which converts DDMMSS coördinates to decimal form.