Transformation of 1,1,1,3,8,10,10,10-octachlorodecane in air phase increased by phytogenic volatile organic compounds of pumpkin seedlings

Yanlin Li; Weifang Chen; Wenqian Kong; Jiyan Liu; Jerald L Schnoor; Guibin Jiang

doi:10.1016/j.scitotenv.2019.135455

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Transformation of 1,1,1,3,8,10,10,10-octachlorodecane in air phase increased by phytogenic volatile organic compounds of pumpkin seedlings

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Transformation of 1,1,1,3,8,10,10,10-octachlorodecane in air phase increased by phytogenic volatile organic compounds of pumpkin seedlings

Yanlin Li, Weifang Chen, Wenqian Kong, Jiyan Liu, Jerald L Schnoor and Guibin Jiang

The Science of the total environment, Vol.704, pp.135455-135455

02/20/2020

DOI: 10.1016/j.scitotenv.2019.135455

PMID: 31791777

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Abstract

[Display omitted] •Transformation of SCCPs in air phase was shown experimentally for the first time.•First evidence of increased transformation of SCCPs by PVOCs is provided.•Carbon chain decomposition, dechlorination and chlorine rearrangement occurred. Short chain chlorinated paraffins (SCCPs) are widely distributed persistent organic pollutants (POPs). Airborne chlorodecanes were hypothesized to be transformed by reactive phytogenic volatile organic compounds (PVOCs) in our previous work. To test this hypothesis, PVOCs of pumpkin (Cucurbita maxima x C. moschata) were collected and reacted with 1,1,1,3,8,10,10,10-octachlorodecane in the air phase of a sealed glass bottle under illumination for 10 days (reaction system I, simulating atmospheric reaction conditions with PVOCs). The reaction control group (reaction system II) was set at the same conditions but only had chlorodecane (without PVOCs) inside the bottle. Transformation of SCCPs in the air phase of reaction control group was unexpectedly found. Results showed that 1,1,1,3,8,10,10,10-octachlorodecane was transformed to a great extent to C10Cl5-8, C9Cl6-8, and C8Cl7-8 in the air phase after 10-d illumination in both with and without the presence of PVOCs, which is explained by carbon chain decomposition, dechlorination and chlorine rearrangement products of the parent SCCP. Those transformation processes were increased to some extent by the PVOCs from pumpkin seedlings. This study provides the first experimental data on atmospheric transformation of SCCPs and also the first evidence that plant emissions (PVOCs) can increase the transformation of SCCPs in air under light and experimental conditions. It provides new insight into the potential transformation and fate of CPs in the environment.

Transformation

Air phase

Pumpkin seedlings

PVOCs

SCCPs

Details

Title: Subtitle: Transformation of 1,1,1,3,8,10,10,10-octachlorodecane in air phase increased by phytogenic volatile organic compounds of pumpkin seedlings
Creators: Yanlin Li - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
Weifang Chen - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
Wenqian Kong - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
Jiyan Liu - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
Jerald L Schnoor - Department of Civil and Environmental Engineering, University of Iowa, Iowa City, IA, USA
Guibin Jiang - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
Resource Type: Journal article
Publication Details: The Science of the total environment, Vol.704, pp.135455-135455
Publisher: Elsevier B.V
DOI: 10.1016/j.scitotenv.2019.135455
PMID: 31791777
ISSN: 0048-9697
eISSN: 1879-1026
Grant note: DOI: 10.13039/100006190, name: Research and Development, award: 2018YFC1800702; DOI: 10.13039/501100001809, name: National Natural Science Foundation of China, award: 21677158, 21621064; DOI: 10.13039/100000066, name: NIEHS, award: P42ES013661; DOI: 10.13039/501100002367, name: Chinese Academy of Sciences
Language: English
Date published: 02/20/2020
Academic Unit: Civil and Environmental Engineering; Occupational and Environmental Health; IIHR--Hydroscience and Engineering; Iowa Superfund Research Program
Record Identifier: 9983997975602771

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