ANALYSIS OF RCC GRANITE QUARRY SITE ON AIR QUALITY OF YANGOJI, KWALI, AREA COUNCIL, ABUJA, NIGERIA
Authors:
Christopher Owoicho, Duru, Tochukwu Collins, Abdulsalam Biliaminu, Ameh, Ramatu Ann & Abubakar Umar Mazhinyi
Abstract:
This study analyzed granite quarry site on air quality of Yangoji, in Kwali Area Council, Federal Capital Territory, Abuja, Nigeria. Using measurement, the study used an industrial scientific ibrid Mx6 gas analyzer to measure NO2, CO and CO2, pm2.5 and pm10 with a handheld laser particle counter, Model 3887 and So2 with Crowcon gas man EN50014. The study revealed that particulate matter (pm2.5 and pm10), NO2, CO and SO2 were all above the limits of Nigerian Ambient Air Quality Standards of 150 µg/M3 for a 24-hourly average time for pm10 and 35 µg/M3 for pm2.5, 0.06ppm for No2 and 10ppm for CO at the quarry site, granite mill, stockpiling area and packing house except the village upwind. The study also discovered that pm10 and nitrogen oxide have the highest coefficient of variation of 51 and 67 respectively. The study further revealed a positive significant (p< 0.05) relationship between particulate matter (2.5), nitrogen oxide (NO2) and carbon monoxide (CO). The study concludes that quarry activities released air pollutants into the environment and pollutants such as particulate matter (pm2.5 and pm10) and greenhouses gases such as CO, CO2, NO2 and SO2 were all detected. The study, therefore, recommends that for sustainable quarry activities, the quarry site should be located in the interior surrounded by adequate vegetation which would act as sinks and block for various emissions emanating from the quarry site.