Results of Continuous Monitoring of Bisphenol A and 4-Nonylphenol Concentrations in Leachate from Final Disposal Landfills

Sanada, Hiromi; Fukui, Hiroshi; Takahashi, Michimasa; Saitoh, Kunihiko; Kaneko, Hidehiro

doi:10.3985/jswme.17.259

Cited by 4 publications

(3 citation statements)

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“…However, in the latter two landfills, BPA was not detected, but 4-nonylphenol was measured at 2 mg/L in both landfills. Although the concentration of 4tOP is often low in effluents from Japanese landfills, BPA has occasionally been found at very high levels [7][8][9]. Extensive surveys of landfill wastewater are needed to find and remediate polluted areas.…”

Section: à3mentioning

confidence: 99%

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The feasibility of using mosquitofish (Gambusia affinis) for detecting endocrine‐disrupting chemicals in the freshwater environment

Kamata

Itoh

Nakajima

et al. 2011

Enviro Toxic and Chemistry

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We evaluated the utility of gene-transcriptional responses in the liver of mosquitofish (Gambusia affinis), a species introduced to many countries and therefore widely available, for detecting endocrine-disrupting activity in water. Exposure to β-naphthoflavone, an aryl hydrocarbon receptor (AhR) agonist, significantly increased the transcript of the cytochrome P4501A gene (cyp1a), peaking at 24 h, in both sexes at concentrations of 10 µg/L or more. 17β-Estradiol (E(2) ) at 500 ng/L increased the number of males showing gene transcription of precursors of yolk protein, vitellogenin (Vtga, Vtgb, and Vtgc), at 24, 48, and 72 h. Exposure for 48 h to bisphenol A (BPA), an estrogen mimic, also increased vtg-positive males at 1 mg/L or more. Leachate from a Japanese stable-type landfill significantly increased vtg-positive males after 48 h exposure, and the in vitro activity of the leachate against the estrogen receptor (ER) was estimated as an E(2) equivalent of 240 ng/L by yeast transfected with the ER. Chemical analysis showed that major contributors to the ER activation were BPA and 4-tert-octylphenol. This leachate and drainage water from a control-type landfill had AhR activities, estimated by yeast with the AhR, but had no significant effect on cyp1a transcription. These results showed that mosquitofish are suitable for detecting in vivo AhR and ER effects, but are insensitive to E(2).

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Section: à3mentioning

confidence: 99%

“…This is especially true for the stable-type landfill, which treats waste plastics and rubber. In fact, BPA, nonylphenol, and diethylhexyl phthalate, which are known to have endocrinedisrupting properties, have been found at Japanese landfills [7][8][9], where, in particular, BPA concentrations reach mg/L levels in the worst cases.…”

Section: Introductionmentioning

confidence: 99%

The feasibility of using mosquitofish (Gambusia affinis) for detecting endocrine‐disrupting chemicals in the freshwater environment

Kamata

Itoh

Nakajima

et al. 2011

Enviro Toxic and Chemistry

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“…However, in Asian monsoon climate countries such as Japan, rainfall amounts are much higher than in EU countries. In addition, the results of continuous monitoring in long-standing waste landfills [19] has shown that rainfall amounts over 100 mm/24 h increased the concentrations of BPA and NP in leachate, and concentrations of these compounds are increased even further by a wash-out effect under heavy rain conditions (>150 mm/24 h). Therefore, we consider the serial batch test to be more suitable for monsoon climate countries.…”

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confidence: 98%

Leaching characteristics of bisphenol A from epoxy-resin pavement materials

Sanada

Shoji

Kaneko

2007

Toxicological & Environmental Chemistry

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We investigated the leaching characteristics of bisphenol A (BPA) from two kinds of epoxy-resin pavement materials, one containing epoxy resins (EPs) and the other containing epoxy-acrylate resins (EPAs). Both samples contained residual BPA monomer, at levels of 9.0 mg g À1 for the EP resin sample and 4.4 mg g À1 for the EPA resin sample. These amounts were larger than amounts previously measured for polycarbonate samples. The amount of BPA leached from the samples increased with temperature. The leaching of BPA from EP was more strongly affected by temperature than the leaching from EPA. The pH also affected the amount of leached BPA. The maximum leached amount was observed under alkaline conditions (pH 10.8) for both sample types. The amounts of BPA that might leach from pavement materials during 1 h of heavy rain were estimated to be 0.9 mg m À2 for EP and 3.5 mg m À2 for EPA. Our results indicate that EPs disposed of in waste landfills without any treatment may be a source of BPA in leachate at landfill sites.

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Estrogenic effects of leachates from industrial waste landfills measured by a recombinant yeast assay and transcriptional analysis in Japanese medaka

et al. 2011

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Results of Continuous Monitoring of Bisphenol A and 4-Nonylphenol Concentrations in Leachate from Final Disposal Landfills

Cited by 4 publications

References 0 publications

The feasibility of using mosquitofish (Gambusia affinis) for detecting endocrine‐disrupting chemicals in the freshwater environment

The feasibility of using mosquitofish (Gambusia affinis) for detecting endocrine‐disrupting chemicals in the freshwater environment

Leaching characteristics of bisphenol A from epoxy-resin pavement materials

Estrogenic effects of leachates from industrial waste landfills measured by a recombinant yeast assay and transcriptional analysis in Japanese medaka

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