Assessment and toxicity potential of the gaseous pollutants emitted from laboratory-scale open burning of scrap tyres Online publication date: Fri, 25-Jan-2019
by Ishaq Dimeji Sulaymon; Lukuman Adekilekun Jimoda; Zainab Olayemi Sulaymon; Gabriel Ayodele Adebayo
International Journal of Environmental Engineering (IJEE), Vol. 9, No. 3/4, 2018
Abstract: Open burning of scrap tyres (OBST) has been identified as a key source of gaseous pollutants. However, OBST has been widely and indiscriminately practiced in Nigerian communities with less attention to its environmental impacts. Gaseous pollutants (CO, NO2 and SO2) emitted from OBST were investigated. In this study, 20 types of tyres representing five from each of bicycle, motorcycle, car and truck category were considered. The emission levels of CO, NO2 and SO2 in the tyre smoke were quantified by means of modules in validated Testo 350 XL flue gas analyser. The toxicity potential (TP) levels of CO, NO2 and SO2 ranged from 0.32-1.12, 0.20-4.83 and 0.29-1.76, respectively. Out of all the gaseous pollutants emitted, 25% is within the air quality index range of 101-150. An assessment of the toxicity potential levels of these hazardous gaseous pollutants suggests that OBST may pose serious threat to human health and environment.
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