Carbon Monoxide (CO) and Lead (Pb) are gases commonly produced through incomplete combustion of motor vehicles. This research aims to analyze the environmental health risks due to exposure to Carbon Monoxide (CO) and Lead (Pb) gases from vehicles along the front road of Pasar Pagi Arengka, Pekanbaru City. Data was collected for 6 days with measurements taken for 1 hour in the morning and aftern…