Occurrence and distribution of nonionic surfactants, their degradation products, and linear alkylbenzene sulfonates in coastal waters and sediments in spain

摘要

Spain is one of the European countries that still discharges untreated wastewaters and sewage sludge to the sea. A total of 35 samples of coastal waters and 39 samples of harbor sediments was analyzed. samples were collected from several hot spots on the Spanish coast, such as the harbors of Tarragona, Almeria, and Barcelona, the mouths of the Besos and Llobregat rivers, the Bay of Cadiz, and various yacht harbors at the Mediterranean coast. A generic analytical procedure based on solid-phase extraction- Liquid chromatography-atmospheric pressure chemical ionization/electrospray ionization mass spectrometry(SPE-LC-APCl/ESI- MS) was employed for determining the concentration of alcohol ethoxylates(AEO), nonylphenol ethoxylates(NPEO), coconut Diethanol amides(CDEA), nonylphenoxy-monocarboxylates(NPEC), nonylphenol(NP), octylphenol(OP), and linear alkylbenzene Sulfonates(LAS) in sediment and water samples.