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A scalable field study using leaves as a novel passive air sampler to evaluate the potential source of organophosphate esters in street dust.
Pang, Long; Huang, Ziling; Yang, Huiqiang; Pang, Rong; Wu, Mingkai; Jin, Baodan.
Afiliación
  • Pang L; Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, China. Electronic address: lpang@zzuli.edu.cn.
  • Huang Z; Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, China.
  • Yang H; Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, China.
  • Pang R; Department of Medicine, Huanghe Science and Technology College, Zhengzhou, Henan, 450001, China.
  • Wu M; Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, China.
  • Jin B; Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450001, China.
Chemosphere ; 312(Pt 2): 137248, 2023 Jan.
Article en En | MEDLINE | ID: mdl-36400197
Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers in industrial and commercial products. It is generally believed that OPEs in street dust mainly originate from road traffic and anthropogenic activities. The influence of atmospheric deposition is still unknown. In this study, leaves were employed as a novel passive air sampler to collect particle matters (PM) in 12 cities in the central province of Henan, China. Similar compositional profiles of OPEs were found in street dust and PM samples. The concentrations of individual OPEs in PM were 1-4 times higher than in street dust. Chlorinated OPEs concentration in PM shows a moderate correlation (r2 = 0.538, p < 0.01) with that in street dust. The concentration of alkyl OPEs in PM has a high correlation (r2 = 0.843, p < 0.01) with that in street dust. No significant correlation (r2 = 0.133, p = 0.132) was found on the aryl OPEs concentrations between street dust and PM. Spearman correlation reveals that the emission sources of tricresyl phosphate (TCrP) and triethyl phosphate (TEP) may be different from other OPEs in dust and PM samples. Principle component analysis (PCA) provides an appropriate explanation that tris (2-chloroethyl) phosphate (TCEP), triphenyl phosphate (TPhP), tris (chloropropyl) phosphate (TCPP), tributyl phosphate (TnBP), and TEP in street dust and PM may be emitted from the same sources, suggesting that PM has a significant influence on the occurrence of OPEs in street dust. The estimated dry deposition fluxes of particle-bound OPEs show a significant correlation (R2 = 0.969, p < 0.01) with OPEs concentrations in street dust, revealing that the input of atmospheric deposition could be a major source of OPEs in street dust.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tritolilfosfatos / Polvo Idioma: En Revista: Chemosphere Año: 2023 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tritolilfosfatos / Polvo Idioma: En Revista: Chemosphere Año: 2023 Tipo del documento: Article Pais de publicación: Reino Unido