Effects of Seasonal Variations on Microorganisms on Paint-Polluted Soil in Nigeria

ABSTRACT
Adverse impacts of paints effluents from industries improperly disposed into the environment caused pollution, a lot of carcinogenic, mutagenic, physiological alterations resulting in debilitating health effects on humans. The study was aimed at isolating and identifying some dominant microorganisms involves in the biodegradation of acrylic paint-impacted sites at different seasons. A total of one hundred (100) soil samples each were collected at different seasons from two paint companies and analyses using standard microbiological methods. Results obtained shows Paint effluents caused a significant decrease (p≤0.05) in the population of the microbial groups studied at the different seasons. Total heterotrophic bacterial population decreased from 7.7x108±0.19 to 6.4x107±0.01 in the dry season, and 5.3x108±0.08 to 6.5x107±0.15 during the rainy season. A total of eleven bacterial and eight fungi genera were identified. They include Bacillus spp., Pseudomonas spp., Staphylococcus spp., Micrococcus spp, Serratia spp, Arthrobacter spp., Aeromonas spp., Cirobacter spp., Alcaligenes spp., Flavobacterium spp., and Enterobacter spp. The fungi include Aspergillus spp, Penicillium spp, Fusar