Tripodi M A, Hancke D, Suarez O V
Laboratorio de Ecología de Roedores Urbanos,Departamento de Ecología,Genética y Evolución,IEGEBA (CONICET-UBA),Facultad de Ciencias Exactas y Naturales,Universidad de Buenos Aires,Intendente Güiraldes 2160,Ciudad Universitaria,C1428EGA Núñez,Buenos Aires,Argentina.
J Helminthol. 2018 Sep;92(5):544-548. doi: 10.1017/S0022149X17000876. Epub 2017 Oct 11.
The overall goal of this study was to use the Rattus spp./Hymenolepis diminuta model to assess environmental lead pollution in different landscape units of an urban ecosystem. Rats of the genus Rattus were collected from three shanty towns and three residential neighbourhoods of the city of Buenos Aires. Concentrations of lead in the livers of wild rats and in their parasite H. diminuta were measured using inductively coupled plasma mass spectrometry (ICP-MS). The landscape unit and tissue type had a significant effect on lead concentration, being higher in residential neighbourhoods as well as in H. diminuta tissue. Nevertheless, no significant differences were found for the mean lead concentration in livers between uninfected and infected rats. Since the available information describing heavy-metal pollution within the city of Buenos Aires is scarce, the results of this study allow us to update data about the extent of biologically available lead contamination. Considering that rats and H. diminuta are distributed worldwide, this monitoring system for lead pollution might be applied successfully in other urban ecosystems.
本研究的总体目标是利用鼠属/微小膜壳绦虫模型评估城市生态系统不同景观单元中的环境铅污染。从布宜诺斯艾利斯市的三个棚户区和三个居民区收集了鼠属大鼠。使用电感耦合等离子体质谱法（ICP-MS）测量了野生大鼠肝脏及其寄生虫微小膜壳绦虫中的铅浓度。景观单元和组织类型对铅浓度有显著影响，居民区以及微小膜壳绦虫组织中的铅浓度更高。然而，未感染和感染大鼠肝脏中的平均铅浓度没有显著差异。由于描述布宜诺斯艾利斯市重金属污染的现有信息稀缺，本研究结果使我们能够更新有关生物可利用铅污染程度的数据。考虑到大鼠和微小膜壳绦虫分布于全球，这种铅污染监测系统可能在其他城市生态系统中成功应用。
