1994 Volume 4 Issue 2 Pages 325-333
Organic components in the water of Tamagawa River were analyzed by GC/MS to study the influence of chemicals from the river basin. Eighty-one kinds of compounds containing n-alkanes, polycyclic aromatic hydrocarbons, plasticizers, fatty acids, pesticides, etc. were identified. Organophosphoric acid triesters (TCEP, TBXP, TBP, TPP), pesticides (CAT, IBP, diazinon, atrazin, MBPMC, chlorpyrif os, bromacil) and aroma chemical (galaxolide) were detected in water samples at five locations by using solid phase extraction. Among four organophosphoric acid triesters tested, TCEP showed the highest concentration (370-7.3ng/l) and TPP was the lowest (1.0-6.0ng/l) . Among all the pesticides tested, CAT showed the highest concentration (110ng/l-not detectable) and bromacil was undetectable. Galaxolide was detected in all of samples and ranged from 0.7ng/l to 100ng/l. It seems possible that galaxolide can be an indicator compound in domestic sewage water due to the increased concentrations toward downstream.
