Ecotoxicological Impact of Linear Alkyl Benzene Sulfonates on Indigenous Bacterial Communities in Pristine Soil

The extensive application of surfactants, notably Linear Alkyl Benzene Sulfonates (LAS), in domestic and industrial products has elicited apprehensions about their possible environmental repercussions, especially concerning soil microbial communities. This research examines the ecotoxicological impacts of LAS on native bacterial communities in unspoiled soil, employing laboratory trials and field assessments. The study sought to evaluate the effects of varying concentrations of LAS on soil bactuerial diversity, community composition, and microbial functional activity. Soil samples were obtained from an untainted site in Bayelsa Community and subjected to different amounts of LAS. Bacterial populations were examined using molecular approaches, such as 16S rRNA gene sequencing, while functional alterations were evaluated by enzyme activity assays. Results demonstrated a notable decrease in bacterial diversity and modifications in microbial community composition with rising LAS concentrations. Significant effects were noted at elevated doses of LAS, resulting in a pronounced reduction in the prevalence of essential beneficial bacterial taxa. The functional activities of microbes, encompassing nutrient cycle and degrading mechanisms, were likewise compromised. This work elucidates the possible hazards of LAS pollution on soil ecosystems and underscores the necessity for rigorous restrictions for surfactant use in consumer products to safeguard soil health and biodiversity Corresponding Author: Ariyo, A. B. .; ariyoab@fuotuoke.edu.ng