This results of the Volatile Organic Compounds ( VOCs) levels were analysed in other to present information about the detailed nature of air quality situation in the sampled areas. Air samples were collected by passive sampler (ORSA 5). The air samplers were exposed to a height of 1.5-2.0 m and sampling was carried out four times a month for a period of 12 months. The adsorbed VOCs were desorbed with carbondisulphide (CS2) and the solution analysed using Gas Chromatography (GC) fitted with Flame Ionization Detector (FID). The results from analysis of the air samples collected showed that twenty - Six (26) VOCs were captured. The VOCs were classified thus: aromatics 43%, halogenated 28%, esters 4%, ketones 13%, alcohols 6 %, ethers 3%. There is a significant difference (Pvalue<0.05) between the levels of VOCs in Apapa industrial area. The meteorological parameters showed significant correlation with the ambient concentrations of VOCs. The monthly mean concentrations of the atmosphere total volatile organic compounds (TVOCs) in the industrial area showed significant difference. Source identification studies showed that five (5) VOCs: Isopropyl acetate 46.17%, trichloroethane 35.11%, methylchloride 13.16%, xylene 5.01% and benzene 0.55% were the major contributors to ambient air pollution in Apapa Industrial area. The principal component analysis revealed that the major sources of Volatile. Organic Compounds(VOCs) in the industrial area are mainly anthropogenic and three (3) factors were identified as sources of VOCs in the studied industrial area with industrial emissions dominating.
