Int. J. Environ. Res. Public Health 2017, 14(9), 1033; doi:10.3390/ijerph14091033
Migration and Accumulation of Octachlorodipropyl Ether in Soil-Tea Systems in Young and Old Tea Gardens
Min Liao 1,2, Yan-Hong Shi 2,3, Hai-Qun Cao 1,2,*
, Qing-Kui Fang 1,2, Jin-Jing Xiao 1,2 and Ri-Mao Hua 2,3
, Qing-Kui Fang 1,2, Jin-Jing Xiao 1,2 and Ri-Mao Hua 2,31
School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
2
Provincial Key Laboratory for Agri-Food Safety, Anhui Agricultural University, Hefei 230036, China
3
School of Resource & Environment, Anhui Agricultural University, Hefei 230036, China
*
Author to whom correspondence should be addressed.
Received: 13 August 2017 / Revised: 4 September 2017 / Accepted: 4 September 2017 / Published: 8 September 2017
(This article belongs to the Special Issue A Policy Focused Approach to Public Health and Air, Water and/or Soil Pollution)
Abstract
The migration and accumulation of octachlorodipropyl ether (OCDPE) in soil-tea systems were investigated using a gas chromatography-electron capture detector (GC-ECD) method in young and old tea gardens. When the residual concentration of OCDPE was 100 g a.i. hm−2 in soils, the peak concentrations of OCDPE in fresh leaves of young and old tea plants were 0.365 mg/kg and 0.144 mg/kg, taking 45 days and 55 days, respectively. Equations for the accumulation curves of OCDPE in fresh leaves of young and old tea plants were Ct = 0.0227e0.0566t (R2 = 0.9154) and Ct = 0.0298e−0.0306t (R2 = 0.7156), and were Ct = 3.8435e0.055t (R2 = 0.9698) and Ct = 1.5627e−0.048t (R2 = 0.9634) for dissipation curves, with a half-life of 14.4 days and 12.6 days, respectively. These results have practical guiding significance for controlling tea food safety. View Full-Text
Figure 1
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
Share & Cite This Article
MDPI and ACS Style
Liao, M.; Shi, Y.-H.; Cao, H.-Q.; Fang, Q.-K.; Xiao, J.-J.; Hua, R.-M. Migration and Accumulation of Octachlorodipropyl Ether in Soil-Tea Systems in Young and Old Tea Gardens. Int. J. Environ. Res. Public Health 2017, 14, 1033.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
Related Articles
Article Metrics
Comments
[Return to top]
Int. J. Environ. Res. Public Health
EISSN 1660-4601
Published by MDPI AG, Basel, Switzerland
RSS
E-Mail Table of Contents Alert