Present Status and Issues of Assessment of Exposure and Health Effect of Nanoparticles
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概要
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There is a possibility of exposure to ambient nanoparticles. In the atmospheric environment, an increase in nanoparticles, due to traffic was observed in the roadside area during rush hour. Diesel engines release a large number of nanoparticles. Due to their extremely small size, nanoparticles have new chemical, electrical, optical magnetic properties, and a different correspondence to external stimuli (light, heat, voltage, and etc), compared with larger particles. Manufactured nanoparticles are utilized in a variety of industrial fields such as chemistry, electronics, cosmetics, medicine, food, and environmental technology. The possibility of exposure to these nanoparticles in workplaces might increase. However, little has been done regarding exposure assessment and the assessment of health effects of both ambient and manufactured nanoparticles. In this paper, the present status and issues of exposure and an assessments of the health effect of nanoparticles have been taken up as topics. Regarding the exposure assessment, further studies on the possibilities of exposure in atmospheric environment and workplaces, selection of appropriate indices of exposure and development of methods for measurement of the metrics under consideration of life cycles of nanomaterials are needed. For the evaluation of the health effect assessment, behavior and translocation of nanomaterials and toxicological assessment under consideration of physico-chemical properties of nanomaterials and development of exposure methods for assessing the toxicity, are needed.
- 社団法人 大気環境学会の論文
社団法人 大気環境学会 | 論文
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