title: Heavy metals deposited in the culture of lettuce (Lactuca sativa L.) by the influence of vehicular traffic in Pernambuco, Brazil.
abstract: Currently one of the main sources of atmospheric pollution identified in urban centers is derived from both industrial and motor vehicle emissions. These pollutants can be adsorbed to particulate matter which is present in the air or deposited in the soil and plants, eventually reaching the human food chain. In this context, the present study aimed to determine the concentration of metals such as Cu, Pb, Cd, Ni and Zn in two subspecies of Lactuca sativa L. and in the soil from were lettuce samples were collected. The results for the soil samples analyzed show a possible contamination by Pb with concentration values as high as 140mg.kg(-1), which are above the Brazilian standards defined by Resolution CONAMA 420/2009 (Brazilian Environmental Council). However, the values found in the lettuce itself reveal that it is still suitable for consumption.
authors.affiliation: Nuclear Energy Department, Federal University of Pernambuco, 50740-540 Recife, PE, Brazil. Electronic address: nanda_lq@hotmail.com.
authors.forename: Fernanda C S S
authors.initials: FC
authors.lastname: França
authors.affiliation: Nuclear Energy Department, Federal University of Pernambuco, 50740-540 Recife, PE, Brazil.
authors.forename: Adriana M A
authors.initials: AM
authors.lastname: Albuuerque
authors.affiliation: Nuclear Energy Department, Federal University of Pernambuco, 50740-540 Recife, PE, Brazil.
authors.forename: Amanda C
authors.initials: AC
authors.lastname: Almeida
authors.affiliation: Regional Center for Nuclear Sciences, Brazilian Nuclear Energy Commission, 50740-540 Recife, PE, Brazil.
authors.forename: Patrícia B
authors.initials: PB
authors.lastname: Silveira
authors.affiliation: Regional Center for Nuclear Sciences, Brazilian Nuclear Energy Commission, 50740-540 Recife, PE, Brazil.
authors.forename: Crescêncio A
authors.initials: CA
authors.lastname: Filho
authors.affiliation: Regional Center for Nuclear Sciences, Brazilian Nuclear Energy Commission, 50740-540 Recife, PE, Brazil.
authors.forename: Clovis A
authors.initials: CA
authors.lastname: Hazin
authors.affiliation: Regional Center for Nuclear Sciences, Brazilian Nuclear Energy Commission, 50740-540 Recife, PE, Brazil.
authors.forename: Eliane V
authors.initials: EV
authors.lastname: Honorato
mesh_terms: D001938:Brazil; D005506:Food Contamination; D006801:Humans; D018545:Lactuca; D019216:Metals, Heavy / Q000032:analysis* / Q000633:toxicity; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis* / Q000633:toxicity; D001335:Vehicle Emissions
chemical_list: D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants; D001335:Vehicle Emissions
keywords: Atmospheric pollution; Food safety; Heavy metal; Public health