Departamento de Salud Pública, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Bull Environ Contam Toxicol. 2012 Jun;88(6):813-5. doi: 10.1007/s00128-012-0526-x. Epub 2012 Mar 23.
Our aim was to identify polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzo-p-furans (PCDFs) in agricultural farmland soils in the Northwest of Mexico. We obtained ≈50 g of soil in five Yaqui Valley (VY) agricultural fields in the north-western Mexican State of Sonora and in five Culiacán Valley (VC) agricultural fields in the north-western Mexican State of Sinaloa. Fields with minimal tillage, with ferti-irrigation, and those with intensive aerial and manual tillage were included. All soil samples were subjected to the chemical activated luciferase gene expression (CALUX(®)) test to determine PCDD/F. On average, samples contained 4.2 ± 1.2 PCDD/F ppt TEQ; VY soil samples contained 4.72 ± 1.23 PCDD/F ppt TEQ, while VC soil samples showed 3.6 ± 1.1 PCDD/F ppt TEQ (p = 0.47). On considering tillage-type, in agricultural fields catalogued as intensive tillage, PCDD/F concentrations were 4.40 ± 0.43 in agricultural fields catalogued as intensive tillage, while in farmlands of another tillage-type these concentrations were slightly higher (5.53 ± 0.8).
我们的目的是鉴定墨西哥西北部农业农田土壤中的多氯二苯并对二恶英（PCDDs）和多氯二苯并呋喃（PCDFs）。我们在位于墨西哥西北部索诺拉州的 Yaqui 山谷（VY）的五个农业领域和位于墨西哥西北部锡那罗亚州的 Culiacán 山谷（VC）的五个农业领域中获得了约 50 克土壤。包括最小耕作、施肥灌溉以及密集空中和手动耕作的田地。所有土壤样本均进行化学激活荧光素酶基因表达（CALUX®）测试以确定 PCDD/F。平均而言，样本中含有 4.2 ± 1.2 PCDD/F ppt TEQ；VY 土壤样本中含有 4.72 ± 1.23 PCDD/F ppt TEQ，而 VC 土壤样本中含有 3.6 ± 1.1 PCDD/F ppt TEQ（p = 0.47）。考虑到耕作类型，在被归类为密集耕作的农业领域中，PCDD/F 浓度为 4.40 ± 0.43，而在另一种耕作类型的农田中，这些浓度略高（5.53 ± 0.8）。
