The effectiveness of DustBubbles on dust control in the process of concrete drilling
The effectiveness of DustBubbles on dust control in the process of concrete drilling
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DOI：
10.1016/j.ssci.2012.01.001
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发表时间：
2012-06
期刊：
影响因子：
6.1
通讯作者：
Shichao Fan;Yuen-wah Wong;Liyin Shen;Weisheng Lu;Tao Wang;A. Yu;Q. Shen
中科院分区：
文献类型：
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作者：
Shichao Fan;Yuen-wah Wong;Liyin Shen;Weisheng Lu;Tao Wang;A. Yu;Q. Shen
建筑粉尘是最受关注的对人体健康构成威胁的污染物之一。混凝土钻孔产生的粉尘，特别是硅石粉尘，对工人的健康有不利影响。长期以来，人们一直担心建筑工人过度使用可吸入的结晶二氧化硅。高暴露于二氧化硅，即使在很短的时间内，也会导致矽肺。为了控制混凝土钻孔过程中产生的粉尘，香港一家本地承包商在混凝土钻孔工程中实施了DustBubble。为了评价这种新的粉尘控制措施的有效性，设计并进行了实验研究。比较了以下两种情况下的呼吸性粉尘和二氧化硅粉尘浓度：工人在使用和不使用DustBubble的情况下钻混凝土。收集个人可吸入样本，并根据NIOSH 0600和7500方法进行分析。结果表明，DustBubble可显著降低63%的呼吸性粉尘暴露。然而，没有证据表明使用DustBubble可以减少可吸入石英暴露。
Construction dust is one of the most concerned pollutants presenting risks to human health. Dust generated from concrete drilling, particularly true for silica dust, have an adverse effect on the health of workers. There is a long-term concern about the overexposure of construction workers to respirable crystalline silica. The high exposure to silica, even over a short period, can lead to silicosis. In order to control the dust generated during the process of concrete drilling, a local Hong Kong contractor has implemented DustBubble during the concrete drilling works. In order to evaluate the effectiveness of this new dust control measure, an experimental study has been designed and conducted. The respirable dust and silica dust concentrations of the following two situations were compared: workers drilling concrete with and without the use of DustBubble. Personal respirable samples were collected and analysed based on NIOSH 0600 and 7500 methods. The results revealed that DustBubble could significantly reduce the respirable dust exposure by 63%. However, there was no evidence that the use of DustBubble could reduce the respirable quartz exposure.