Sources of phenolic compounds in two catchments of southern Portugal - effect of season, land use and soil type

Chemosphere
M L BarricoH Freitas

Abstract

Water quality monitoring in reservoirs used for human water consumption, carried out by the Alentejo Regional Authorities of the Environment (south Portugal), revealed seasonal peaks of phenolic compounds above the water-quality legislation. The main objectives of this work were to identify the main phenolic compounds present in water and soil leachates, and to determine the sources of the seasonal concentrations of phenolic compounds in two catchments with different land use patterns: Roxo and Santa Clara catchments. The main phenolic compound detected was 2,4-dinitrophenol (2,4-DNP), both in stream water and soil leachates, with concentrations higher in Roxo catchment. Roxo catchment represents a larger agricultural area than Santa Clara, and it is likely that the origin of the 2,4-DNP is associated with the use of pesticides. A peak of 2,4-DNP concentrations was observed in stream water of both catchments during February, when farmers plough their fields and apply pesticides. The 2,4-DNP peak was probably caused by a precipitation event shortly after the application of pesticides, increasing their transfer from land surfaces to adjacent streams. The leaching behaviour of 2,4-DNP was strongly dependent on the type of soil and...Continue Reading

References

Mar 1, 1981·Journal of Chromatographic Science·P A Realini
Aug 1, 1996·Bulletin of Environmental Contamination and Toxicology·M M Langan, K D Hoagland
Aug 19, 2000·Archives of Environmental Contamination and Toxicology·P C WilsonS J Klaine
Aug 21, 2001·Journal of Chromatography. a·E González-ToledoM F Alpendurada
Nov 6, 2002·Journal of Chromatography. a·Lotte Ask Reitzel, Anna Ledin
Mar 13, 2003·Biotechnology and Applied Biochemistry·Elizabeth AgostiniAna M Giulietti
Aug 26, 2004·Environmental Pollution·A WalkerM J Mitchell
Mar 1, 2005·Environment International·Kenneth E BanksDavid J Wachal
Mar 9, 2005·Journal of Hazardous Materials·Olga GimenoF Javier Rivas
Jul 5, 2005·The Science of the Total Environment·Ching-Ho ChenChien-Hwa Yu

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