title: Mercury content and their risk assessment in farmed shrimp Litopenaeus vannamei from NW Mexico.
abstract: The main objective of this study was to evaluate the total mercury content in hepatopancreas and edible muscle of the whiteleg shrimp Litopenaeus vannamei cultured along the NW coast of Mexico, and to evaluate the potential human health risk due to their consumption. Samples were obtained between May and June 2010 in 26 shrimp farms from the three most important shrimp-producing states of NW Mexico, and total Hg was analyzed after reduction with SnCl2 in a mercury analyzer. The ranges of Hg concentrations of the hepatopancreas were 0.101±0.03-0.184±0.13 μg g(-1) in Sonora, 0.077±0.055-0.813±0.363 μg g(-1) in Sinaloa and 0.139±0.037-0.791±0.33 μg g(-1) in Nayarit. In the muscle, values were from 0.078±0.02 to 0.539±0.09 μg g(-1) in Sonora, 0.154±0.03-0.861±0.423 μg g(-1) in Sinaloa and 0.121±0.041-1.48±0.44 μg g(-1) in Nayarit. Considering the concentrations of Hg in the muscle and the national consumption rate, shrimp farmed in NW Mexico does not represent a risk for human health (HQ<1).
authors.affiliation: Aquatic Resources Postgraduate Program, Faculty of Marine Sciences, Autonomous University of Sinaloa, Mazatlán, Sinaloa 82000, Mexico.
authors.forename: C G
authors.initials: CG
authors.lastname: Delgado-Alvarez
authors.affiliation: Technological Institute of Mazatlán, Mazatlán, Sinaloa 82000, Mexico.
authors.forename: J
authors.initials: J
authors.lastname: Ruelas-Inzunza
authors.affiliation: Faculty of Marine Sciences, Autonomous University of Sinaloa, Paseo Claussen s/n, Mazatlán, Sinaloa 82000, Mexico.
authors.forename: J I
authors.initials: JI
authors.lastname: Osuna-López
authors.affiliation: Center of Biological Studies of the NW, UAS-CIBNOR Environmental Studies Laboratory, Mazatlán, Sinaloa 82000, Mexico.
authors.forename: D
authors.initials: D
authors.lastname: Voltolina
authors.affiliation: Faculty of Marine Sciences, Autonomous University of Sinaloa, Paseo Claussen s/n, Mazatlán, Sinaloa 82000, Mexico. Electronic address: friasm@ola.icmyl.unam.mx.
authors.forename: M G
authors.initials: MG
authors.lastname: Frías-Espericueta
mesh_terms: D000818:Animals; D004784:Environmental Monitoring / Q000379:methods / Q000706:statistics & numerical data*; D004785:Environmental Pollutants / Q000378:metabolism*; D043143:Hepatopancreas / Q000378:metabolism; D006801:Humans; D008628:Mercury / Q000378:metabolism*; D008800:Mexico; D009132:Muscles / Q000378:metabolism; D033561:Penaeidae / Q000378:metabolism*; D018570:Risk Assessment
chemical_list: D004785:Environmental Pollutants; D008628:Mercury
keywords: Farms; Mercury; NW Mexico; Risk assessment; Shrimp