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

Autor: Cai QL; Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.; Key Laboratory of Ecological Environment Analysis and Pollution Control in Western Guangxi Region, College of Agriculture and Food Engineering, Baise University, Baise, 533000, China., Huang CY; College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China., Tong L; 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., Zhong N; Minnan Normal University, Zhangzhou, 363000, China., Dai XR; Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.; College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China., Li JR; 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., Zheng J; 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., He MM; 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., Xiao H; Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
Jazyk: angličtina
Zdroj: Environmental science and ecotechnology [Environ Sci Ecotechnol] 2023 Sep 29; Vol. 18, pp. 100327. Date of Electronic Publication: 2023 Sep 29 (Print Publication: 2024).
DOI: 10.1016/j.ese.2023.100327
Abstrakt: 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 remains 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 ( V B ) using frontal chromatography theory. Our findings reveal a significant relationship between temperature dependence coefficients ( K TN , K TV ) and compound volatility, with decreasing values as volatility increases. While distinct trends are noted for PAHs, PCBs, and OCPs in K TN , K TV values exhibit similar patterns across all chemicals. Moreover, we establish a binary linear correlation between log ( V B /m 3 ), 1/( T /K), and N , simplifying breakthrough level estimation by enabling easy conversion between N and V B . 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.
Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(© 2023 The Authors.)
Databáze: MEDLINE
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