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采集某亚运场馆集中空调通风系统风管内积尘,并应用石墨炉原子吸收光谱法检测了积尘中重金属含量。检测结果分别为铅0.05—3.58mg/kg,镉0.01—0.80mg/kg,铜0.18—16.11mg/kg,锰0.07—7.98mg/kg和铬0.48—8.03mg/kg。各元素回收率在90.0%—113.3%之间。本方法简便、准确,为进一步评价空调系统的卫生状况和风管积尘对人体的影响提供了技术支持。
Dust collecting in the air duct of central air-conditioning and ventilation system of an Asian Games venues was collected, and the contents of heavy metals in the dust were detected by graphite furnace atomic absorption spectrometry. Test results were lead 0.05-3.58mg / kg, cadmium 0.01-0.80mg / kg, copper 0.18-16.11mg / kg, manganese 0.07-7.98mg / kg and chromium 0.48-8.03mg / kg. The recovery rate of the elements between 90.0% -113.3%. The method is simple and accurate, and provides technical support for further evaluating the health status of the air conditioning system and the impact of air duct dust accumulation on the human body.