We report the health risk assessment of air conditioner filter dust collected from different parts of Chennai city, Southern India, using geochemistry and magnetic properties as proxy. The particle size analysis indicates dust particles range from 0.5 μm to 955 μm and the dust grains falling in the range between 30 to 40 μm. The XRD results indicate that the dust samples contain magnetite, hematite, goethite, and trace elements. The hazard index (HI) of trace elements for child and adult determined in our study shows the probable risk for elements as: Cr > Pb > Ni > Cu > Zn. The daily exposure for inhalation [carcinogenic and non-carcinogenic LDD_inh] and cancer risk for inhalation (CR_inh) were showing high risk and health impact for Cr followed by Ni. It is suggested from the study that higher ventilation rate assisted by means of a mechanical system and use of air conditioners with regular cleaning can improve the living conditions in the Metropolitan areas.

中文翻译：

---

钦奈市区及周边地区空调过滤器粉尘与潜在毒性元素（PTE）相关的健康风险评估

我们报告使用地球化学和磁学特性作为替代指标，从印度南部金奈市不同地区收集的空调滤清器粉尘的健康风险评估。粒度分析表明，灰尘颗粒的范围为0.5μm至955μm，灰尘颗粒的范围为30至40μm。XRD结果表明，粉尘样品中含有磁铁矿，赤铁矿，针铁矿和微量元素。在我们的研究中确定的对儿童和成人的痕量元素的危害指数（HI）表明，这些元素的可能风险为：Cr> Pb> Ni> Cu> Zn。吸入的每日​​暴露[致癌和非致癌的LDD _inh ]和吸入的癌症风险（CR _inh）对Cr和Ni均显示高风险和健康影响。研究表明，通过机械系统和使用定期清洁的空调辅助更高的通风速率可以改善都会区的生活条件。