id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-2132		cet-2132		6	.pdf	application/pdf	3960	181	48	Due to the inherent restrictions confronted by contemporary technologies used for Pb removal, its extraction from the environment for direct reuse has thus far not been achieved. It is known that Pb concentrations below 10 mg/L can cause endocrine disruption (Supanopas et al., 2005), while entire ecosystems can be eradicated at concentrations greater than 1000 mg/L (Eisler, 1988).	cache/cet-2132.pdf	txt/cet-2132.txt