Table 1. TSP Elements Categorized by Source for All Event Types Based on Enrichment Factors		
Categorization Method	Soil	Anthropogenic
Enrichment factor from		
Taylor and McLennan [1985]		
	Na, Mg, Si, Pa, K, Ca, Ti, V, Cr, Mn, Fe, Cu, Rb, Cd, Cs, Ba, Ce	Pa, Zn, As, Sb, Pb

Enrichment factor from		
Lide [1991]	Na, Mg, Si, P, K, Ca, Ti, V, Cr, Mn, Fe, Cu, Rb, Cs, Ba, Ce	Zn, As, Cd, Sb, Pb

Final TSP classification		
	Na, Mg, Alb, Si, P, K, Ca, Ti, V, Cr, Mn, Fe, Cu, Rb, Cs, Ba, Ce	Zn, As, Cd, Sb, Pb

aP is an anthropogenic element during DS and URB and soil element during IND.		
bAl is the reference soil element used in the enrichment factor method and is assumed to be from soil.