Spatial and Temporal Concentration of Anionic Surfactant of Water in the Southern Caspian Sea

This study was conducted to determine spatial and temporal concentration of anionic surfactant (Linear Alkylbenzene Sulfonate=LAS) of water in the southern Caspian Sea. Surface water samples were collected from eight transects namely Astara, Anzali, Sefidroud, Tonekabon, Noshahr, Babolsar, Amirabad, and Torkman in the southern Caspian Sea during four seasons (May, August, November and March) in 201