Air Pollution Induced Changes in Some Fatty Acids in Four Species

the study was aimed to investigate the change of some fatty acids to ambient air pollution in four legumes species Pisum sativum L. and (Vicia faba L.m and during summer season were Glycine max and Vigna sinensis grown in five sites mostly affected by high traffic intensity and or industrial activities in Riyadh city capital of Saudi Arabia. The results showed increasing of air pollution (O3, NO2 and SO2) as traffic density and industrial activities increased, and all saturated fatty acids relative contents increased significantly, while the unsaturated fatty acids decreased significantly as pollution levels increased. The study conclude that the changes in fatty acids percentage either increasing of saturated and or decreasing of unsaturated fatty acids in tested plants at four polluted sites as compared to control. Key wards: Air pollution, Fatty acids, Nitrogen dioxide, Ozone, Sulphur dioxide