Development of a soil fugacity sampler for determination of air-soil partitioning of persistent organic pollutants under field controlled conditions

Environmental Science & Technology
Ana CabrerizoDamià Barceló

Abstract

Soils are the main reservoir of persistent organic pollutants (POPs) and thus air-soil exchange and partitioning are key processes controlling the fate and transport of POPs at regional and global scales. To date, soil fugacity has been estimated from models of the soil-air partition coefficients, with the associated unavoidable uncertainties; or by experimental procedures in the laboratory with uncertain application in field conditions. The development of an operational soil fugacity sampler is presented here; one which ensures optimal field data of the POP fugacity in soil and environmentally relevant surface (soil+grass, etc.) and therefore ensuring accurate soil-air partition coefficients and surface-air fugacity gradients. The sampler flow rate is optimized, sampler reproducibility is assessed, and equilibrium between the gas and soil concentrations of polychlorinated biphenyls and polycyclic aromatic hydrocarbons is demonstrated. The development and comprehensive validation of a soil fugacity sampler opens the door for the first time to field studies that accurately determine the variables driving the soil-air partitioning and fluxes of POPs.

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Citations

Oct 23, 2015·Environmental Science and Pollution Research International·Yajun TianQifei Huang
Jan 20, 2015·Journal of Environmental Sciences (China)·Bing YangFasheng Li
Jan 25, 2012·FEMS Microbiology Letters·Uchechukwu V OkereKirk T Semple
Nov 14, 2014·Critical Reviews in Analytical Chemistry·Enzhu HuMarkus Tuller
Jul 28, 2016·The Science of the Total Environment·Ana CabrerizoJavier Benayas
Sep 7, 2019·Environmental Science and Pollution Research International·Lingxi ZhanGan Zhang
Jan 30, 2021·Ecotoxicology and Environmental Safety·Ishwar Chandra Yadav, Ningombam Linthoingambi Devi
Apr 25, 2017·The Science of the Total Environment·Carey E Donald, Kim A Anderson
Jul 5, 2017·Ecotoxicology and Environmental Safety·Ishwar Chandra YadavGan Zhang
Mar 24, 2015·Environmental Science & Technology·Qian ZhengGan Zhang
Apr 19, 2011·Analytical Chemistry·Ana Ballesteros-Gómez, Soledad Rubio
Jul 13, 2019·Environmental Science & Technology·Paulo CasalJordi Dachs

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