ASSESTMENT OF CARBON (II) OXIDE IN RESIDENTIAL AND INDUSTRIAL AREAS OF KADUNA METROPOLIS

Abstract This study focuses on measuring carbon monoxide (CO) concentrations in the air at selected traffic junctions and industrial areas in Kaduna metropolis using a portable digital gas detector. The weekly mean CO concentrations for morning and evening periods in three industrial areas were found to exceed the Nigeria Federal Environmental Protection Agency (FEPA) and World Health Organization (WHO) set limits of 10ppm and 9ppm, respectively. Specifically, concentrations at Nigerian Brewery Environs were 56% higher than the WHO limit, while those at Refinery Junction Environs and Nigerian Bottling Company Environs were 36% and 22% higher, respectively. This indicates significant exposure of individuals in these environments to this harmful gas on a daily basis. High levels of CO are known to adversely affect the central nervous system (CNS) and can lead to symptoms such as headaches, dizziness, cognitive difficulties, and lack of concentration. Additionally, ambient exposure during pregnancy can negatively impact fetal growth, leading to low birth weight and other neonatal abnormalities. CO also reduces the oxygen-carrying capacity of the body's organs and tissues, including the heart and brain.