Background and Aim: Given the increasing use of detergents and the problems of water pollution caused by the release of wastewater containing large amounts of detergents in recent decades. this study aimed to investigate the concentration and health and ecological risk assessment of linear alkylbenzene sulfonate (LAS) as the most important detergent composition in Ekbatan Dam is Hamed... https://www.roneverhart.com/ESP-LTD-SD-2-Sammy-Duet-Signature-Model-Electric-Guitar-Black-p20045/