Arabica-coffee and teobroma-cocoa agro-industrial waste biosorbents, for Pb(II) removal in aqueous solutions.

Agro-industrial waste biosorbents of arabica-coffee (WCA) and theobroma-cocoa (WCT) have been characterized and tested to remove Pb(II) from aqueous media. The maximum adsorption capacity of WCA and WCT (q = 158.7 and 123.

Estimation of total arsenic contamination and exposure in Brazilian rice and infant cereals.

Arsenic (As) causes health effects, especially cancer. Rice ( L.) can contain high As concentrations.