Sorption and release of endocrine disruptor compounds onto/from surface and deep horizons of two sandy soils

Loffredo, Elisabetta; Senesi, N.

doi:10.1016/s0166-2481(02)80051-4

Cited by 10 publications

(7 citation statements)

References 3 publications

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“…Based on the sorption kinetics, 24 hours was considered to be an appropriate equilibrium time for all estrogens, and this was consistent with other reports. [24] In general, two phases of sorption were evident for all three estrogens (Fig. 1).…”

Section: Resultsmentioning

confidence: 88%

“…[40,41] However, a study that employed multiple wash steps likewise observed continued extraction of estrogens from soils with successive washes. [24] This extensive desorption of estrogens from soils has profound implications for the fate of estrogens in the environment.…”

Section: Resultsmentioning

confidence: 99%

“…Sorption tends to increase with higher organic carbon content and lower particle sizes. [24][25][26][27][28] The type or quality of the organic components in the soils also impact sorption of estrogens. [29] In addition to sorption to soils, there is also evidence that estrogens are biodegraded (mineralized) in soils.…”

Section: Introductionmentioning

confidence: 99%

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Sorption and Desorption of Three Endocrine Disrupters in Soils

Hildebrand

Londry

Farenhorst

2006

Journal of Environmental Science and Health, Part B: Pesticides

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Sorption of the estrogens estrone (E1), 17beta-estradiol (E2) and 17alpha-ethynylestradiol (EE2) on four soils was examined using batch equilibrium experiments with initial estrogen concentrations ranging from 10 to 1000 ng mL-1. At all concentrations, >85% of the three estrogens sorbed rapidly to a sandy soil. E1 sorbed more strongly to soil than E2 or EE2. Partial oxidation of E2 to E1 was observed in the presence of soils. Autoclaving was more effective at reducing this conversion than inhibition with sodium azide or mercuric chloride, and had little effect on sorption, relative to the chemical microbial inhibitors. Sorption of EE2 was greater for fine-textured than coarse-textured soils, but greater than 90% of EE2 sorbed onto all four soils. The greatest degree of desorption of estrogens from the sandy soil occurred with the lowest initial concentration of 10 ng mL-1 and reached levels >or=80% for E1 and E2. Desorption of EE2 was greater in coarser textured soils than finer-textured soils. Again, relative desorption from all soils was greatest with low initial concentrations. Therefore, at environmentally relevant concentrations, estrogens quickly sorb to soils, and soils have a large capacity to bind estrogens, but these endocrine-disrupting compounds can become easily desorbed and released into the aqueous phase.

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Section: Resultsmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Sorption and Desorption of Three Endocrine Disrupters in Soils

Hildebrand

Londry

Farenhorst

2006

Journal of Environmental Science and Health, Part B: Pesticides

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“…Based on the hydrophobic sorption characteristics of EE2, sorption increases and mobility decreases with increasing organic carbon content and decreases with particle size (Loffredo and Senesi, 2002;Lee et al, 2003;Hildebrand et al, 2006). According to Hildebrand et al (2006), EE2 follows a two-phase sorption in which a rapid phase occurs within the first few hours in soil followed by a slower phase requiring 24 h to reach sorption equilibrium.…”

Section: Effect Of Incorporation On Ee2 In Runoffmentioning

confidence: 99%

Use of a Surrogate to Evaluate the Impact of Tillage on the Transport of Steroid Hormones from Manure-Amended Agricultural Fields

et al. 2013

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“…This model allows calculation of the kinetic constant of the sorption process, according to Eq. 2 (Loffredo and Senesi 2002).…”

Section: Pseudosecond Order Kineticsmentioning

confidence: 99%

Kinetics and Adsorption Isotherms of Bisphenol A, Estrone, 17β-Estradiol, and 17α-Ethinylestradiol in Tropical Sediment Samples

Cunha

Botero

Oliveira

et al. 2011

Water Air Soil Pollut

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The sorption of four endocrine disruptors, bisphenol A (BPA), estrone (E1), 17β-estradiol (E2), and 17α-ethinylestradiol (EE2) in tropical sediment samples was studied in batch mode under different conditions of pH, time, and sediment amount. Data obtained from sorption experiments using the endocrine disruptors (EDs) and sediments containing different amounts of organic matter showed that there was a greater interaction between the EDs and organic matter (OM) present in the sediment, particularly at lower pH values. The pseudosecond order kinetics model successfully explained the interaction between the EDs and the sediment samples. The theoretical and experimentally obtained q e values were similar, and k values were smaller for higher SOM contents. The k F values, obtained from the Freundlich isotherms, varied in the ranges 4.2-7.4×10 −2 (higher OM sediment sample, S 2 ) and 1.7×10 −3 -3.1×10 −2 (lower OM sediment sample, S 1 ), the latter case indicating an interaction with the sediment that increased in the order: EE2>>E2>E1>BPA. These results demonstrate that the availability of endocrine disruptors may be directly related to the presence of organic material in sediment samples. Studies of this kind provide an important means of understanding the mobility, transport, and/or reactivity of this type of emergent contaminant in aquatic systems.

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Sorption and release of endocrine disruptor compounds onto/from surface and deep horizons of two sandy soils

Cited by 10 publications

References 3 publications

Sorption and Desorption of Three Endocrine Disrupters in Soils

Sorption and Desorption of Three Endocrine Disrupters in Soils

Use of a Surrogate to Evaluate the Impact of Tillage on the Transport of Steroid Hormones from Manure-Amended Agricultural Fields

Kinetics and Adsorption Isotherms of Bisphenol A, Estrone, 17β-Estradiol, and 17α-Ethinylestradiol in Tropical Sediment Samples

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