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

Yang WU, Xue-Xue CHEN, Ting-Kai ZHU, Xing LI, Xiao-Hong CHEN, Ce-Hui MO, Yan-Wen LI, Quan-Ying CAI, Ming Hung WONG

Research output: Contribution to journalArticles

11 Citations (Scopus)

Abstract

The extensive use of plasticizers containing di-n-butyl phthalate (DBP) and di-(2-ethylhexyl) phthalate (DEHP) results in high residual concentrations in agricultural soils and poses potential risks to human health through the food chain. Here, two rice cultivars with low (Fengyousimiao) and high (Peizataifeng) phthalic acid ester (PAE) accumulation were grown in leaching columns packed with DBP- and DEHP-contaminated soils to investigate their transport, fraction distribution, and accumulation in soil-rice-water system. Significant differences in soil vertical distribution of DBP and DEHP were observed among the two cultivars, sterilization and non-sterilization treatments. Both DBP and DEHP could leach to the bottom layer even though their concentrations in both soil and pore water decreased along with soil depth. DBP and DEHP concentrations in pore water were significantly correlated with those in corresponding soil layer at ripening stage. The available fractions including desorbing and non-desorbing fractions were predominant in the total concentrations of DBP and DEHP of soils. DBP and DEHP storages in coarse soil fractions (i.e., coarse and fine sands) with higher bioavailability displayed higher bioconcentration factors compared to finer soil fractions (i.e., silt and clay), and bioconcentration factors of Peizataifeng were higher than those of Fengyousimiao. The variations in vertical migration and accumulation of DBP and DEHP by the two cultivars implied different adverse effects on the security of groundwater and food. Copyright © 2018 Springer-Verlag GmbH Germany, part of Springer Nature
Original languageEnglish
Pages (from-to)17768-17780
JournalEnvironmental Science and Pollution Research
Volume25
Issue number18
Early online dateApr 2018
DOIs
Publication statusPublished - Jun 2018

Citation

Wu, Y., Chen, X.-X., Zhu, T.-K., Li, X., Chen, X.-H., Mo, C.-H., . . . Wong, M.-H. (2018). Variation in accumulation, transport, and distribution of phthalic acid esters (PAEs) in soil columns grown with low- and high-PAE accumulating rice cultivars. Environmental Science and Pollution Research, 25(18), 17768-17780. doi: 10.1007/s11356-018-1938-x

Keywords

  • Phthalic acid esters
  • Soil column
  • Transport
  • Extractable fractions
  • Particle-size fractions
  • Accumulation variations

Fingerprint Dive into the research topics of 'Variation in accumulation, transport, and distribution of phthalic acid esters (PAEs) in soil columns grown with low- and high-PAE accumulating rice cultivars'. Together they form a unique fingerprint.