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- W1995463565 abstract "A wide range of environmental and chemical factors influenced the biodegradation of simple and complex phthalic acid esters in an aquatic environment. The length and configuration of the alkyl phthalate diester significantly affected the primary biodegradation of di-n-butyl (DBP), di-2-ethylhexyl (DEHP), di-isooctyl (DIOP), and di-isononyl (DNIP) phthalate. After 14 days incubation in aerobic sediments at 22°C, less than 2% of the branched-chain alkyl phthalates—DEHP, DIOP and DINP (at μg concentrations)—were biodegraded, compared with 85% of the linear alkyl DBP. Primary biodegradation of DEHP, DIOP and DINP was significantly greater at high concentrations (> μg litre−1) and high temperatures (> 22°C) in freshwater sediments. Pre-exposure of the sediments to DBP, DEHP, DIOP and DINP did not influence their biodegradation. The addition of organic nutrients significantly affected the primary biodegradation of DBP with varied results, depending on the nutrient, its concentration, and the time of addition. Neither inorganic nitrogen nor phosphorus alone or in combination influenced the degradation of DBP. The complex alkyl phthalate DEHP in sediments biodegraded under anaerobic conditions; even though the process was slow, both primary and ultimate degradation did occur." @default.
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- W1995463565 date "1984-01-01" @default.
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- W1995463565 title "Environmental and chemical factors influencing the biodegradation of phthalic acid esters in freshwater sediments" @default.
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- W1995463565 doi "https://doi.org/10.1016/0143-148x(84)90021-1" @default.
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