Effects of Quarry Activities on some Selected Communities ...
With reference to Ghana EPA [13] standard for PM 10 the communities in the study area recorded daily concentration that exceeds the daily minimum level of 70 µg/m 3 over a time-weighted average per 24 hours. Out of the fifteen readings taken in the study area, 86.7% were above the 70 µg/m 3 set by EPA, Ghana.