![Sample our Earth Sciences journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5930/TOC-Subject-Sample-2021-Earth-Sciences.jpg"})
Abstract
This study, which was done to ascertain the relationship between soiling index and suspended particulate concentrations, shows only fair correlations, indicating that the relation could be used for planning purposes but not for regulations or compliance monitoring. Along with the background information relating to the general topic of the paper, some applications of obscuration versus aerosol concentrations are described and a criticism of the use of single‐valued opacity regulations is offered.