Environmental Science, Faculty of Science, Macquarie University, North Ryde, Sydney, NSW 2109, Australia.
Environ Pollut. 2014 Jan;184:238-46. doi: 10.1016/j.envpol.2013.09.003. Epub 2013 Sep 24.
Interior and exterior dust, soil and paint were analysed at five brick urban Sydney homes over 15 months to evaluate temporal variations and discriminate sources of lead (Pb) exposure. Exterior dust gauge Pb loading rates (μg/m(2)/28 days), interior vacuum dust Pb concentrations (mg/kg) and interior petri-dish Pb loading rates (μg/m(2)/28 days), were correlated positively with soil Pb concentrations. Exterior dust gauge Pb loading rates and interior vacuum dust Pb concentrations peaked in the summer. Lead isotope and Pb speciation (XAS) were analysed in soil and vacuum dust samples from three of the five houses that had elevated Pb concentrations. Results show that the source of interior dust lead was primarily from soil in two of the three houses and from soil and Pb paint in the third home. IEUBK child blood Pb modelling predicts that children's blood Pb levels could exceed 5 μg/dL in two of the five houses.
在 15 个月的时间里，对悉尼五个砖制城市住宅的室内外灰尘、土壤和油漆进行了分析，以评估铅（Pb）暴露的时间变化并区分其来源。室外灰尘计 Pb 加载率（μg/m(2)/28 天）、室内真空灰尘 Pb 浓度（mg/kg）和室内培养皿 Pb 加载率（μg/m(2)/28 天）与土壤 Pb 浓度呈正相关。室外灰尘计 Pb 加载率和室内真空灰尘 Pb 浓度在夏季达到峰值。对来自五个住宅中铅浓度升高的其中三个住宅的土壤和真空灰尘样本进行了铅同位素和 Pb 形态（XAS）分析。结果表明，室内灰尘铅的主要来源是两个住宅中的土壤和第三个住宅中的土壤和 Pb 油漆。IEUBK 儿童血 Pb 模型预测，在这五个住宅中的两个住宅中，儿童的血 Pb 水平可能超过 5μg/dL。
