Adgate J L, Weisel C, Wang Y, Rhoads G G, Lioy P J
Environmental and Occupational Health Sciences Institute (EOHSI), Piscataway, New Jersey 08855-1179, USA.
Environ Res. 1995 Aug;70(2):134-47. doi: 10.1006/enrs.1995.1058.
This paper examines the quantitative relationships between dust loading, lead loading, and lead concentration in house dust. Bare floor, interior sill, and carpet dust samples were collected in 216 Jersey City, New Jersey, homes using quantitative wipe and vacuum sampling techniques. Comparison of wipe and vacuum sample distributions for these homes indicated that lead loading was more variable than dust loading or lead concentration measured on floors, sills, or carpets. These data also indicated that increased lead loading on carpets relative to sills or floors was due to higher dust loading on carpets. Correlation analysis of wipe samples indicated that dust loading was more strongly correlated with lead loading on floors (r = 0.73) than on sills (r = 0.53), that dust loading was not correlated with lead concentration on either surface, and that lead loading and lead concentration were more strongly correlated in samples collected from sills (r = 0.81) than from floors (r = 0.65). Most importantly, carpets and rugs served as large reservoirs for house dust and consequently were a large potential source of dust exposure in children's common microenvironments.
本文研究了房屋灰尘中粉尘负荷、铅负荷和铅浓度之间的定量关系。采用定量擦拭和真空采样技术，在新泽西州泽西城的216户家庭中采集了裸地、室内窗台和地毯灰尘样本。对这些家庭的擦拭样本和真空样本分布进行比较表明，铅负荷比在地板、窗台或地毯上测得的粉尘负荷或铅浓度变化更大。这些数据还表明，相对于窗台或地板，地毯上铅负荷的增加是由于地毯上更高的粉尘负荷。擦拭样本的相关性分析表明，粉尘负荷与地板上的铅负荷（r = 0.73）的相关性比与窗台上的铅负荷（r = 0.53）更强，粉尘负荷与这两种表面的铅浓度均无相关性，并且从窗台上采集的样本中铅负荷与铅浓度的相关性（r = 0.81）比从地板上采集的样本（r = 0.65）更强。最重要的是，地毯是房屋灰尘的巨大储存库，因此是儿童常见微环境中潜在的大量粉尘暴露源。
