Díaz-Barriga F, Santos M A, Yañez L, Cuellar J A, Ostrosky-Wegman P, Montero R, Perez A, Ruiz E, Garcia A, Gomez H
Facultad de Medicina, Universidad Autónoma de San Luis Potosí, Mexico.
J Expo Anal Environ Epidemiol. 1993;3 Suppl 1:63-71.
A health assessment was performed in a recently opened landfill for toxic waste. The site has received 14,000 tons of hazardous waste, confined in drums or deposited as bulk material, which were left outdoors for seven months. The analysis in some samples showed that the waste is rich in heavy metals, however we did not find high levels of contaminates in air or surface soil in different areas on-site. When compared to a control group, high-risk workers show higher levels of arsenic in urine and hair, and non-specific symptoms (irritability and insomnia). But among groups, we did not find statistical differences in urinary mercury, blood lead, phenol in urine, cadmium in hair or blood, sister chromatid exchange values, lymphocytes proliferation kinetics, liver function tests, and other non-specific symptoms. We considered this project as a background study for human exposure to hazardous waste, providing useful results for the future evaluation of chronic effects in the same population.
在一个最近开放的有毒废物填埋场进行了健康评估。该场地已接收了14000吨危险废物，这些废物装在桶中或作为散装材料存放，在户外放置了七个月。一些样本分析表明，这些废物富含重金属，然而我们在现场不同区域的空气或表层土壤中未发现高浓度污染物。与对照组相比，高危工人尿液和头发中的砷含量较高，且有非特异性症状（易怒和失眠）。但在各群体之间，我们未发现尿汞、血铅、尿中苯酚、头发或血液中的镉、姐妹染色单体交换值、淋巴细胞增殖动力学、肝功能测试及其他非特异性症状存在统计学差异。我们将该项目视为人类接触危险废物的背景研究，为未来评估同一人群的慢性影响提供了有用结果。
