特立尼达和多巴哥小学生的血铅水平。

Blood lead levels in primary school children in Trinidad and Tobago.

作者信息

Rajkumar Wayne Simon, Manohar Jay, Doon Rohit, Siung-Chang Avril, Chang-Yen Ivan, Monteil Michele

机构信息

Environmental Management Authority, 8 Elizabeth Street St Clair, Port of Spain, Trinidad and Tobago.

出版信息

Sci Total Environ. 2006 May 15;361(1-3):81-7. doi: 10.1016/j.scitotenv.2005.05.012. Epub 2005 Jul 5.

DOI:10.1016/j.scitotenv.2005.05.012

PMID:15996720

Abstract

This study is the first national baseline survey of blood lead levels (BLLs) conducted on primary school children (ages 5-7 years) in Trinidad and Tobago. A total of 1,761 students from 61 schools participated in the study over a 3-month period. Measurements of capillary BLLs were assessed as well as responses to a risk assessment questionnaire. BLLs ranged from <1 microg/dL to 28.6 microg/dL with a geometric mean of 2.8 microg/dL, which compared favourably with results from the U.S. 1991-94 National Health and Nutrition Examination Survey. Fifteen (0.9%) children had a BLL>or=10 microg/dL (10.8-28.6 microg/dL) of which three (0.2%) met the U.S. criteria for lead poisoning (BLL>or=20 microg/dL). Further environmental investigations are required to identify source(s) of lead exposure in cases with high BLL.

摘要

本研究是对特立尼达和多巴哥5至7岁小学生血铅水平（BLL）进行的首次全国性基线调查。在3个月的时间里，来自61所学校的1761名学生参与了该研究。评估了毛细血管血铅水平测量值以及风险评估问卷的应答情况。血铅水平范围为<1微克/分升至28.6微克/分升，几何平均值为2.8微克/分升，这与美国1991 - 1994年全国健康与营养检查调查的结果相比更具优势。15名（0.9%）儿童的血铅水平≥10微克/分升（10.8 - 28.6微克/分升），其中3名（0.2%）符合美国铅中毒标准（血铅水平≥20微克/分升）。对于血铅水平高的病例，需要进一步进行环境调查以确定铅暴露源。