Preventive & Community Dentistry, Obafemi Awolowo University, Ile-Ife, Nigeria.
Waste Manag Res. 2010 Sep;28(9):769-77. doi: 10.1177/0734242X09356017. Epub 2010 Feb 2.
This study assessed the practice of disposing of waste from the eight dental clinics of Obafemi Awolowo University Teaching Complex, Ile-Ife, Nigeria. All the cleaners (14) in the hospitals were surveyed through questionnaire. Information obtained from the cleaners included socio-economic characteristics (biodata), personal protection, facilities available for them to work with and job satisfaction. Two soil samples were obtained from the open dump site (0.15 and 0.30 m depth) and two water samples were also collected (at 0.00 and 50.00 m) within the vicinity of the dump site. Both the soil and water samples were taken to the central science laboratory for chemical analyses. Ten (71.4%) of the 14 cleaners were not satisfied with their job. The laboratory findings suggested a very high content of lead, chromium, mercury, cadmium and manganese in both soil and water samples in comparison with the Nigerian Federal Environmental Protection Agency standards. The study concludes that the use of tooth-coloured restorative materials and digital X-ray facility to serve as alternatives to the generation of these wastes is recommended and that farming activities should not be allowed in the area until an audit of the soil and water have been performed.
本研究评估了尼日利亚伊费奥巴费米·阿沃洛沃大学教学建筑群的八家牙科诊所的废物处理实践。通过问卷对所有医院清洁工（共 14 人）进行了调查。从清洁工那里获得的信息包括社会经济特征（个人资料）、个人防护、他们工作所需的设施和工作满意度。从垃圾场的开放倾倒场（0.15 和 0.30 米深）获得了两个土壤样本，还在垃圾场附近采集了两个水样（0.00 和 50.00 米）。将两个土壤和水样都送到了中心科学实验室进行化学分析。在 14 名清洁工中，有 10 名（71.4%）对他们的工作不满意。实验室的结果表明，与尼日利亚联邦环境保护局的标准相比，土壤和水样中的铅、铬、汞、镉和锰含量非常高。研究得出的结论是，建议使用牙色修复材料和数字 X 射线设备来替代这些废物的产生，并且在进行土壤和水的审计之前，不应允许在该地区进行农业活动。
