Variation in accumulation, transport, and distribution of phthalic acid esters (PAEs) in soil columns grown with low- and high-PAE accumulating rice cultivars

Wu, Yang Chang; Chen, Xue-Xue; Zhu, Ting-Kai; Li, Xing; Chen, Xiaohong; Chen, Mo; Li, Yanwen; Cai, Quan-Ying; Wong, Ming Hung

doi:10.1007/s11356-018-1938-x

Cited by 34 publications

(12 citation statements)

References 57 publications

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“…More detailed soil PAE environmental quality standards are required to enforce soil remediation and minimize soil toxicity. The establishment of detailed quality inspection standards for agricultural products in respect of PAE pollutants is also strongly recommended [60, 61].…”

Section: Discussionmentioning

confidence: 99%

Toxicity of phthalate esters to lettuce (Lactuca sativa) and the soil microbial community under different soil conditions

Zhou

Chen

et al. 2018

PLoS ONE

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Phthalate esters (PAEs) are globally used plasticizers and typical endocrine disruptors that can readily accumulate in agricultural products and represent a substantial risk to human health via the food chain. The range of soil properties has an important influence on the expression of PAE toxicity, and the mechanisms by which soil physical and chemical properties affect the expression of toxicity of target PAEs to plants and microorganisms requires further investigation. Important soil factors affecting the eco-toxicological effects of two typical PAEs, di-n-butyl phthalate (DnBP) and bis (2-ethylhexyl) phthalate (DEHP), on lettuce (Lactuca sativa) in a spiked soil were investigated in the present study. Soil at various pH values was spiked with three PAE concentrations (1, 5 and 20 mg DnBP or DEHP kg-1 soil), organic matter contents and water holding contents to simulate the greenhouse soil environment for 30 days. Their influence on the biomass, photosynthetic pigment contents, various physiological changes and soil microbial communities was determined as endpoints. The toxicity to lettuce of DnBP was higher than that of DEHP in the soil and soil pH was the most important factor affecting their single toxicity, followed by soil organic matter content and soil moisture content in agreement with the Biolog test results. Under different soil conditions total protein, total soluble sugar and free amino acid contents were positively correlated with concentrations of the target PAEs, but leaf area, biomass, •O2- activity, vitamin C content and soil microbial diversity indices showed the opposite trend. Chlorophyll a and carotenoid contents were more inhibited by DnBP together with impacts on indices of soil microbial diversity. The results suggest that soil conditions in greenhouses directly explain the patterns of pollutant toxicity displayed and impact the quantity, quality and food safety of vegetables produced using highly intensive production systems.

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Section: Discussionmentioning

confidence: 99%

Toxicity of phthalate esters to lettuce (Lactuca sativa) and the soil microbial community under different soil conditions

Zhou

Chen

et al. 2018

PLoS ONE

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“…The differing DBP distributions in agricultural soil fractions might be associated with differences in its mobility and ecological risks. DBP should display higher mobility and bioavailability (e.g., higher bioconcentration factors in rice, maize and wheat) in soil fractions with lower CEC and OM contents, such as coarse sand fractions and fine sand fractions, as has been reported based on a column experiment and a field investigation. , …”

Section: Resultsmentioning

confidence: 76%

“…Agricultural soil is a major reservoir for PAEs. − The highest sum concentration of six PAE priority pollutants detected in agricultural soil in China was up to 1232 mg/kg dry weight (dw), which was much higher than those reported in other countries. , The six PAEs included di- n -butyl phthalate (DBP), butyl benzyl phthalate (BBP), di(2-ethylhexyl) phthalate (DEHP), dimethyl phthalate (DMP), diethyl phthalate (DEP), and di- n -octyl phthalate (DOP) classified by the US Environment Protection Agency (USEPA). Among the PAEs detected in agricultural soils, DBP was often the highest concentration, whereas DEHP was the most abundant in some cases. , PAEs in agricultural soil could be taken up and accumulated by crops, posing potential risks to human health via food consumption. − …”

Section: Introductionmentioning

confidence: 99%

“…Sorption is a crucial process governing the mobility, bioavailability, and fate of organic contaminants in the environment. − Recent studies have reported the sorption of PAEs (e.g., DBP and DEHP) to various materials including soils, − sediments, , clays, , organic matter (OM) fractions isolated from soils and sediments, , biochars, and carbon materials . Considering that agricultural soils were commonly polluted with PAEs, ,, further studies related to its PAE sorption would be needed, which will help assess the potential risks posed by PAEs to the soil-crop system and food safety. , …”

Section: Introductionmentioning

confidence: 99%

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Sorption Mechanism, Kinetics, and Isotherms of Di-n-butyl Phthalate to Different Soil Particle-Size Fractions

Xiang

Wang

Chen

et al. 2019

J. Agric. Food Chem.

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Di-n-butyl phthalate (DBP) is a prevalent pollutant in agricultural soils due to use of plastic film. This study focused on sorption mechanism, kinetics, and isotherms of DBP to six paddy soil particle-size fractions (i.e., coarse sand, fine sand, coarse silt, fine silt, clay, and humic acid fractions). DBP sorption involved in both boundary layer diffusion and intraparticle diffusion, following pseudo-second-order kinetics. DBP sorption was a spontaneous physical process, which fit the Freundlich model. Hydrophobic and ionic interaction relevant to the organic matter content, cation exchange capacity, surface area, and pore volume of soil fractions played key roles in DBP sorption. DBP was strongly adsorbed to humic acid and the sorption was reversely associated with soil particle sizes. DBP may exhibit higher mobility and bioavailability in a soil-crop system at lower temperature (15 °C), due to the lower log K oc values.

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“…Quality control/quality assurance All analytical procedures were monitored with strict quality assurance and quality control measures using the procedure reported by Wu et al (2018). The method blanks were run with every extraction and cleanup procedures without nutrient solution and plant tissue samples.…”

Section: Extraction Purification and Analysismentioning

confidence: 99%

Uptake and accumulation of di-n-butyl phthalate in six leafy vegetables under hydroponic conditions

Li¹,

Yan²,

Yu³

2019

Food Prod Process and Nutr

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The uptake and accumulation of din -butyl phthalate (DBP) in six leafy vegetables was investigated under hydroponic conditions. The test vegetables were six varieties of Brassica campestris ssp., including Kangresijiqing (KRSJQ), Xiadiqing (XDQ), Ziyoucai (ZYC), Aijiaohuang (AJH), Shanghaiqing (SHQ) and Gaogengbai (GGB). The root concentration factor (RCF), translocation factor (TF) and transpiration stream concentration factor (TSCF) were calculated in order to compare the difference of uptake and accumulation behaviours of DBP in vegetable varieties. The results showed that DBP was easily concentrated in vegetable roots, but was poorly translocated from the roots to the shoots. Among the six vegetables, the ability of concentrating DBP from the solution to shoots was the highest in GGB, followed by ZYC, KRSJQ, AJH, SHQ and XDQ. High concentrations of DBP (5.0 mg/L) seem to inhibit normal physiological activity in the vegetables, which resulted in a higher RCF and a lower TF and TSCF than in low-concentration treatment. The results will help to evaluate the safety of agricultural products and to provide evidence for screening DBP pollution-safe vegetable cultivars.

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Variation in accumulation, transport, and distribution of phthalic acid esters (PAEs) in soil columns grown with low- and high-PAE accumulating rice cultivars

Cited by 34 publications

References 57 publications

Toxicity of phthalate esters to lettuce (Lactuca sativa) and the soil microbial community under different soil conditions

Toxicity of phthalate esters to lettuce (Lactuca sativa) and the soil microbial community under different soil conditions

Sorption Mechanism, Kinetics, and Isotherms of Di-n-butyl Phthalate to Different Soil Particle-Size Fractions

Uptake and accumulation of di-n-butyl phthalate in six leafy vegetables under hydroponic conditions

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