Farfel M R, Chisolm J J, Rohde C A
Kennedy Krieger Institute, Baltimore, Maryland 21205.
Environ Res. 1994 Aug;66(2):217-21. doi: 10.1006/enrs.1994.1057.
Residential lead-based paint and settled dust are important sources of lead exposure in U.S. children. Scant information exists on the long-term effectiveness of alternative lead abatement practices. In this extended (1.5-3.5 years) follow-up study of comprehensive abatement, 179 wipe dust samples were collected in 13 occupied dwellings for which pre- and immediately postabatement (clearance) dust lead data were available. Dust lead loadings (mg/m2) 1.5 to 3.5 years postabatement were 16, 10, and 4% of preabatement levels for floors, window sills, and window wells, respectively. Furthermore, 78% of readings remained within Maryland's interim clearance standards, indicating that sustained reductions of dust lead hazards were achieved in comprehensively abated dwellings located in older unabated housing areas.
含铅住宅涂料和沉降灰尘是美国儿童铅暴露的重要来源。关于替代铅减排措施的长期有效性，现有信息很少。在这项对综合减排措施进行的延长（1.5至3.5年）随访研究中，在13处有人居住的住宅中采集了179份擦拭灰尘样本，这些住宅有减排前和减排后（清除）即刻的灰尘铅数据。减排后1.5至3.5年，地板、窗台和窗井的灰尘铅含量（毫克/平方米）分别为减排前水平的16%、10%和4%。此外，78%的读数仍在马里兰州的临时清除标准范围内，这表明在位于未减排老住宅区的综合减排住宅中，灰尘铅危害实现了持续降低。
