Silver discharged in effluents from image-processing services: a risk to human and environmental health.

摘要: In Brazil, only 20.2% of the municipalities have sewage collection and treatment. The use medical diagnostic by radiographic processing generates effluents which may contain contaminants such as silver (Ag) that causes irreversible damage to health. They can also contaminate soil, water, food if there is no treatment before disposal. This study aimed identify quantify Ag concentration in film-washing water fixer generated from 12 Brazilian health institutions, order offer subsidies environmental public managers about this issue. values found washing films samples ranged 0.1 1,785.97 mg L−1. samples, 435.59 16,325.92 These data are far above required legislation whose limit L−1 for released directly or indirectly into environment. research reveals disposal kind effluent needs be monitored controlled government protect both human environment those contaminants.