首页|Sampling efficiency of a polyurethane foam air sampler:Effect of temperature

Sampling efficiency of a polyurethane foam air sampler:Effect of temperature

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Effective monitoring of atmospheric concentrations is vital for assessing the Stockholm Convention's effectiveness on persistent organic pollutants(POPs).This task,particularly challenging in polar regions due to low air concentrations and temperature fluctuations,requires robust sampling techniques.Furthermore,the influence of temperature on the sampling efficiency of polyurethane foam discs re-mains unclear.Here we employ a flow-through sampling(FTS)column coupled with an active pump to collect air samples at varying temperatures.We delved into breakthrough profiles of key pollutants,such as polycyclic aromatic hydrocarbons(PAHs),polychlorobiphenyls(PCBs),and organochlorine pesticides(OCPs),and examined the temperature-dependent behaviors of the theoretical plate number(N)and breakthrough volume(VB)using frontal chromatography theory.Our findings reveal a significant rela-tionship between temperature dependence coefficients(KTN,KTV)and compound volatility,with decreasing values as volatility increases.While distinct trends are noted for PAHs,PCBs,and OCPs in KTN,KTV values exhibit similar patterns across all chemicals.Moreover,we establish a binary linear correlation between log(VB/m3),1/(T/K),and N,simplifying breakthrough level estimation by enabling easy con-version between N and VB.Finally,an empirical linear solvation energy relationship incorporating a temperature term is developed,yielding satisfactory results for N at various temperatures.This approach holds the potential to rectify temperature-related effects and loss rates in historical data from long-term monitoring networks,benefiting polar and remote regions.

TemperatureTheoretical plate numberBreakthrough volumeFrontal chromatographic theoryLSER

Zhe Deng、Julian Muñoz Sierra、Ana Lucia Morgado Ferreira、Daniel Cerqueda-Garcia、Henri Spanjers、Jules B.van Lier、Jie Zheng、Meng-Meng He、Hang Xiao

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Delft University of Technology,Faculty of Civil Engineering and Geosciences,Stevinweg 1,2628 CN,Delft,the Netherlands

Veolia Water Technologies Techno Center Netherlands B.V.-Biothane,Tanthofdreef21,2623 EW,Delft,the Netherlands

KWR Water Research Institute,Groningenhaven 7,P.O.Box 1072,3430 BB,Nieuwegein,the Netherlands

Institute of Ecology.A.C,Cluster Cientifico y Tecnologico BioMimic®,Carretera Antigua a Coatepec 351,El Haya,91073,Xalapa,Veracruz,Mexico

Key Laboratory of Urban Environment and Health,Ningbo Observation and Research Station,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen,361021,China

Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control,CAS Haixi Industrial Technology Innovation Center in Beilun,Ningbo,315830,China

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国家自然科学基金国家自然科学基金中国科学院战略性先导科技专项Guangxi Key Research and Development Program科技部项目Guangxi Firstclass Disciplines

2197617141905115XDA23020301GuikeAB212200632016YFE0112200

2024

10.1016/j.ese.2023.100327

环境科学与生态技术(英文)

环境科学与生态技术(英文)

ISSN：
年,卷(期)：2024.18(1)
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