Erratum to¿Naturally occurring thallium: a hidden geoenvironmental health hazard?¿ [Environ. Int. 30 (2004) 501¿507]

The publisher regrets that in the above article, two references, Xiao et al., 2003b,c, were incorrectly printed. The correctreferences now follow.Xiao T, Guha J, Boyle D. Adverse environmental impact of high thallium content in rocks associated with Au–As–Hg–Tland coal mineralization in southwest Guizhou, China. Geochem: Explor, Environ, Anal 2003b (in press).Xiao T, Guha J, Boyle D, Liu CQ, Chen J. Environmental concerns related to high thallium levels in soils and thalliumuptake by plants in southwest Guizhou, China. Sci Total Environ 2004;318:223–44.