Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Stable carbon isotope fractionation during the biodegradation of lambda-cyhalothrin
Autor Shen, X.; Xu, Z.; Zhang, X.; Yang, F.;
Journal / Serie Science of the Total Environment
Erscheinungsjahr 2015
Department WANA;
Band/Volume 532
Sprache englisch;
POF III (gesamt) T32;
Keywords Lambda-cyhalothrin; Biodegradation; Soil; Compound-specific stable isotope analysis; Carbon isotope fractionation
UFZ Querschnittsthemen RU2;
Abstract In this study, the microbial degradation of lambda-cyhalothrin in soil was investigated using compound-specific stable isotope analysis. The results revealed that lambda-cyhalothrin was biodegraded in soil under laboratory conditions. The half-lives of lambda-cyhalothrin were determined to be 49 and 161 days in non-sterile and sterile soils spiked with 2 mg/kg lambda-cyhalothrin and 84 and 154 days in non-sterile and sterile soils spiked with 10 mg/kg lambda-cyhalothrin, respectively. The biodegradation of lambda-cyhalothrin resulted in carbon isotope fractionation, which shifted from − 29.0‰ to − 26.5‰ in soil spiked with 2 mg/kg lambda-cyhalothrin, and to − 27.5‰ with 10 mg/kg lambda-cyhalothrin. A relationship was established between the stable carbon isotope fraction and the residual concentrations of lambda-cyhalothrin by the Rayleigh equation in which the carbon isotope enrichment factor ε of the microbial degradation of lambda-cyhalothrin in the soil was calculated as − 2.53‰. This study provides an approach to quantitatively evaluate the biodegradation of lambda-cyhalothrin in soil in field studies.
ID 16329
dauerhafte UFZ-Verlinkung http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16329
Shen, X., Xu, Z., Zhang, X., Yang, F. (2015):
Stable carbon isotope fractionation during the biodegradation of lambda-cyhalothrin
Sci. Total Environ. 532 , 415 - 419