Fingerprinting Metals in Urban Street Dust of Beijing, Shanghai, and

Environ. Sci. Technol. 2008, 42, 7111–7117

Fingerprinting Metals in Urban Street Dust of Beijing, Shanghai, and Hong Kong P E T E R A . T A N N E R , * ,† H O I - L I N G M A , † AND PETER K. N. YU‡ Department of Biology and Chemistry, and Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong S.A.R., P.R. China

Received March 17, 2008. Revised manuscript received June 25, 2008. Accepted June 30, 2008.

Street dust samples were taken between July and December 2005 at 25 locations in Shanghai, Beijing, and Hong Kong and sieved to 63 µm particle size before elemental analyses by CHN analyzer, XRF and ICP-MS. About 60% of the particles from the Beijing and Shanghai sieved samples were