Here’s a document that summarizes an air-monitoring project. Sobering.
Monitoring Analysis of Air Surrounding a Chippewa Falls, WI Frac Sand Processing Plant
Brief Summary
Data from a monitoring project by Concerned Chippewa Citizens (CCC) shows strong evidence for detection of particulate matter emanating from the EOG Resources (NYSE: EOG) sand processing facility located in the Northeast corner of Chippewa Falls, WI.
Three questions are examined:
1. Is there reason to believe there are other sources of particulates that might affect either of the principal monitoring sites?
Answer: NO
2. Is there reason to believe the EOG site is producing off site particulate pollution?
Answer: YES
3. Is the particulate matter of sufficient quantity and/or quality to be a health hazard?
Answer: Quite possibly. This monitoring effort can not answer
this definitively. However, strong evidence of particulate matter
from the EOG plant at locations over a mile from the facility call
for a more intensive investigation by the Wisconsin DNR and
Department of Health.
Click HERE for a link to the whole report