This chapter provides details on the mitigation of 222Rn concentrations in
Ohio, USA through development of associated geospatial maps and computation of
statistical metrics. The geospatial and statistical analyses are examined at both the
county level and the zip code level to have a thorough understanding of the 222Rn
mitigation that assists in accurately estimating the influence of adopted mitigation
systems in controlling the in-house 222Rn concentrations. Additionally, a novel approach
to rank the performance of different mitigation systems has been developed. The
developed methodology, incorporated in this chapter is used to identify the best
performing mitigation system in Ohio and serves as a case study for radon mitigation
specialists in ranking their respective mitigation systems.
Keywords: Radon, mitigation, pre-mitigation, post-mitigation, radon mitigation
in Ohio, geospatial radon mitigation maps, radon mitigation statistical metrics,
WHO-USEPA radon map for mitigation, USEPA radon map for mitigation, 2
pCi/L breakdown radon map for mitigation, minimum radon concentration
statistics, maximum radon concentration statistics, arithmetic mean radon
concentration statistics, geometric mean radon concentration statistics, standard
deviation in radon measurements statistics, coefficient of variation in radon
measurements statistics, median radon concentration statistics, first quartile radon
concentration statistics, third quartile radon concentration statistics, mitigation
system ranking methodology.
