Comparative study on organic constituents in polluted and unpolluted inland aquatic environments 3. phenols and aromatic acids in polluted and unpolluted waters

Matsumoto, G.

Water Research 16(5): 551-558


ISSN/ISBN: 0043-1354
Accession: 005001975

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Phenols and aromatic acids were analyzed in polluted river waters in the Tokyo [Japan] area and in water from an unpolluted river, brook, reservoir and in pond waters from the Ogasawara (Bonin) Islands [Japan]. The phenolic acids (p-hydroxybenzoic, vanillic, syringic, p-coumaric and ferulic acids) and o- and m-hydroxybenzoic acids were found in the waters of the Tokyo area and Ogasawara Islands at a concentration of generally < .mu.g/l, but pentachlorophenol, bisphenol A, terephthalic and trimesic acids were not identified in the waters of the Ogasawara Islands. The major sources of these phenolic acids were vascular plants and their detritus, while pentachlorophenol, bisphenol A and terephthalic acids are mainly attributed to human activities. These phenolic acids were commonly distributed in polluted waters. The p-coumaric and ferulic acids as C (CFC)/total organic C and CFC/extractable organic C with ethyl acetate values suggested that the contribution of vascular plants and their detritus to the waters between the Tokyo area and Ogasawara Islands were nearly equal. According to the syringic acid/vanillic acid ratios, it was probable that the relative contribution of angiosperms to gymnosperms for the waters of the Tokyo area was smaller than those of the Ogasawara Islands.