Study of baseline radon levels in the context of a shale gas development.

This study reports the results from continuous measurement of indoor and outdoor radon concentrations in the area surrounding an unconventional shale gas exploration site in North Yorkshire, England, prior to the commencement of hydraulic fracturing. Public Health England has monitored the baseline radon levels in homes and in outdoor air in the Vale of Pickering since 2015. The statistical analysis presented here includes three full years (November 2015- -December 2018) of indoor and four and half years (October 2015 - April 2019) of outdoor radon measurements.