TITANIUM AND TUNGSTEN IN HIGHWAY RUNOFF AT PULLMAN, WASHINGTON

作     者：BOURCIER, DR HINDIN, E COOK, JC 

作者机构：Toxicology Program Utah State University 84322 Utah Logan UMC-56 United States Department of Civil and Environmental Engineering Environmental Science Program Pullman Washington 99164 United States 

出 版 物：《INTERNATIONAL JOURNAL OF ENVIRONMENTAL STUDIES》 (Int. J. Environ. Stud.)

年 卷 期：1980年第15卷第2期

页      面：145-149页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

摘      要：The inputs of Ti and W to a 0.6 acre (2323 m2) road surface area were investigated. The selection of a viaduct at Pullman, Washington as a study area permitted the exclusion of metal input from sources other than the road surface. Dustfall and precipitation were sampled at the viaduct and at a control station. Ti and W were not detected in precipitation samples at levels of 1.0 and 15 mg/l in the diluted sample digests, respectively. W was also not detected in dust samples. Average deposition rates for Ti in dust were 43.6 mg/m2 per day at the viaduct stations and 44.3 mg/m2 per day at the control station. Road runoff was collected and flow was measured during 3 storm events. Rainfall intensity and traffic density were also monitored. The mean concentration of Ti in the road runoff was 12.7 mg/l while W varied from nondetectable (2.5 mg/l) to 25 mg/l. A mathematical model was developed allowing estimation of metal loadings for a typical storm event utilizing data on the total runoff volume.