Occurrence of organic contaminants in sewage sludges from eleven wastewater treatment plants, China

Cai, Quan-Ying; Chen, Mo; Wu, Qi‐Tang; Zeng, Qiaoying; Katsoyiannis, Athanasios

doi:10.1016/j.chemosphere.2007.03.041

Cited by 217 publications

(95 citation statements)

References 33 publications

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“…The same thing has also happened in China, where widespread pollution of DBP and DEHP and other phthalates in biological samples has been reported in recent years (41,42). Due to the widespread application of phthalates, they have been the most abundant compounds in various environmental matrices compared to other organic contaminants in China (43). In Beijing, 2.0 µg/L of diisobutylphthalate was found in the finished drinking water (18).…”

Section: Resultsmentioning

confidence: 99%

Dibutyl Phthalate Contributes to the Thyroid Receptor Antagonistic Activity in Drinking Water Processes

Wang

Zhou

et al. 2010

Environ. Sci. Technol.

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It has long been recognized that thyroid hormone (TH) is essential for normal brain development in both humans and animals, and there is growing evidence that environmental chemicals can disrupt the thyroid system. In the present work, we used a two-hybrid yeast assay to screen for agonistic or antagonistic thyroid receptor (TR) mediated effects in drinking waters. We found no TR agonistic, but TR antagonistic activities in all samples from the drinking water processes. The TR antagonistic activities in organic extracts of water samples were then calibrated regarding to a known TR-inhibitor, NH3, and were expressed as the NH3 equivalents (TEQbio). The observed TEQbio in waters ranged from 180.8 ( 24.8 to 280.2 ( 48.2 µg/L NH3. To identify the specific compounds responsible for TR disrupting activities, the concentrations of potentially thyroid-disrupting chemicals including organochlorine pesticides (OCPs), phenols, and phthalates in organic extracts were quantitatively determined and their toxic equivalents with respect to NH3 (TEQcal) were estimated from their concentrationdependent relationships, respectively, using the same set of bioassays. Based on the TEQ approach, it was revealed that dibutyl phthalate (DBP) accounted for 53.7 ( 8.2% to 105.5 ( 16.7% of TEQbio. There was no effective removal of these potential thyroid disrupting substances throughout drinking water treatment processes.

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Section: Resultsmentioning

confidence: 99%

Dibutyl Phthalate Contributes to the Thyroid Receptor Antagonistic Activity in Drinking Water Processes

Wang

Zhou

et al. 2010

Environ. Sci. Technol.

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“…In soils, the main anthropogenic sources of phthalic acid esters originate from agricultural films (Wang et al 2013a); agricultural chemicals, such as pesticides and fertilizers (Wang et al 2013b;Guo and Kannan 2012); waste water irrigation and biosolids fertilization (Cai et al 2007), and industrial emissions (Weschler et al 2008;Zhu et al 2010) which was one of the phthalic acid ester sources but not the main route for agricultural soil. Phthalic acid esters from these sources are further distributed in the environment through various biogeochemical cycling processes supported by the soil (Fig.…”

Section: Source Of Phthalic Acid Esters In Agricultural Soilsmentioning

confidence: 99%

Contamination and remediation of phthalic acid esters in agricultural soils in China: a review

He¹,

Gielen²,

Bolan³

et al. 2014

Agron. Sustain. Dev.

229

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Phthalic acid esters have been used as plasticizers in numerous products and classified as endocrine-disrupting compounds. As China is one of the largest consumers of phthalic acid esters, some human activities may lead to the accumulation of phthalic acid esters in soil and result in contamination. Therefore, it is necessary for us to understand the current contamination status and to identify appropriate remediation technologies. Here, we reviewed the potential sources, distribution, and contamination status of phthalic acid esters in soil. We then described the ecological effect and human risk of phthalic acid esters and finally provided technologies to remediate phthalic acid esters. We found that (1) the application of plastic agricultural films, municipal biosolids, agricultural chemicals, and wastewater irrigation have been identified as the main sources for phthalic acid ester contamination in agricultural soil; (2) the distribution of phthalic acid esters in soils is determined by factors such as anthropogenic behaviors, soil type, properties of phthalic acid esters, seasonal variation, etc.; (3) the concentrations of phthalic acid esters in soil in most regions of China are exceeding the recommended values of soil cleanup guidelines used by the US Environmental Protection Agency (US EPA), causing phthalic acid ester in soils to contaminate vegetables; (4) phthalic acid esters are toxic to soil microbes and enzymes; and (5) phthalic acid ester-contaminated soil can be remedied by degradation, phytoremediation, and adsorption.

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“…Li et al (2010b) also suggested that DBP contributed to the antagonistic TR activity in drinking water. Due to the widespread application of PAEs, they are the most abundant compounds in aquatic environmental matrices in China (Cai et al 2007). High levels of DBP and other PAEs have been reported in water samples (ng/L to mg/L range) in recent years (Li et al 2010b;Shi et al 2012;Zhou & Liu 2013).…”

Section: Discussionmentioning

confidence: 99%

Identification of Thyroid-Receptor Antagonists in Water from the Guanting Reservoir, Beijing, China

Ren

Han

et al. 2014

Arch Environ Contam Toxicol

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Thyroid hormone (TH) has long been known to be essential for normal brain development in both humans and animals, and increasing evidence suggests that environmental components may disrupt TH signaling. In the present study, two-hybrid yeast bioassay and chemical analysis were used to evaluate and identify thyroid-receptor (TR) disruptors in water from the Guanting Reservoir, Beijing, China. Modified yeast bioassay showed that the water samples could affect TH signaling. The bioassay-derived amiodarone hydrochloride equivalents ranged from 33.8 ± 3.3 to 308.5 ± 31.8 lg/L. Solid-phase extraction was used to separate the organic extracts, which were subjected to bioassay and chemical analysis. The organic extracts significantly antagonized the TR, which accounted for [86.0 % of the total effects. Thus, organic extracts may play a major role in the TR-disruption activity of the water. Phenols, organochlorine pesticides, and phthalate esters were detected in the organic extracts. Chemical analysis and toxic-equivalent calculation showed that a major cause of the TR antagonism of the water was dibutyl phthalate (80.1 to 122.7 %).

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Occurrence of organic contaminants in sewage sludges from eleven wastewater treatment plants, China

Cited by 217 publications

References 33 publications

Dibutyl Phthalate Contributes to the Thyroid Receptor Antagonistic Activity in Drinking Water Processes

Dibutyl Phthalate Contributes to the Thyroid Receptor Antagonistic Activity in Drinking Water Processes

Contamination and remediation of phthalic acid esters in agricultural soils in China: a review

Identification of Thyroid-Receptor Antagonists in Water from the Guanting Reservoir, Beijing, China

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