Comparative study on organic constituents in polluted and unpolluted inland aquatic environmentsIII: Phenols and aromatic acids in polluted and unpolluted waters

Genki Matsumoto

Water Research 16(5): 551-557

1982


ISSN/ISBN: 0043-1354
DOI: 10.1016/0043-1354(82)90075-6
Accession: 061662600

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Abstract
Phenols and aromatic acids were analysed in polluted river waters in the Tokyo area and in water from an unpolluted river, brook, reservoir and in pond waters from the Ogasawara (Bonin) Islands. 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 less than 1 μg 1−1, but pentachlorophenol, bisphenol A, terephthalic and trimesic acids were not identified in the waters of the Ogasawara Islands. It was confirmed that the major sources of these phenolic acids are vascular plants and their detritus, while pentachlorophenol, bisphenol A and terephthalic acids are mainly attributed to human activities. It was also established that these phenolic acids are commonly distributed in polluted and unpolluted waters. The p-coumaric and ferulic acids as carbon (CFC)/total organic carbon and CFC/extractable organic carbon with ethyl acetate values suggested that the contribution of vascular plants and their detritus to the waters between the Tokyo area and Ogasawara Islands are near equal. According to the syringic acid/vanillic acid ratios, it is probable that the relative contribution of angiosperms to gimnosperms for the waters of the Tokyo area is smaller than those of the Ogasawara Islands.