Honeybees and their products as bioindicators for heavy metal pollution in Malta

Acta Brasiliensis

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Title Honeybees and their products as bioindicators for heavy metal pollution in Malta

Abelhas e seus produtos como bioindicadores da poluição por metais pesados em Malta
 
Creator Borg, Daniel
Attard, Everaldo
 
Description In this study, honeybees, propolis, air, soil and plant samples were gathered from two contrasting sites Ħal Luqa (industrial area) and L-Imġarr (agricultural area) in mainland Malta. Superficial heavy metals were extracted from the samples and tested using microwave plasma-atomic emission spectrometry in order to determine the concentrations of Ag, As, Cd, Cr, Cu, Pb, Sn, Zn, Ni and Hg. The honeybee and propolis samples were digested using nitric acid and hydrogen peroxide and then ashed using a muffle furnace in order to prepare mineral solutions. Simultaneously the air samplers, soil and plant samples were washed using de-ionised water in order to extract the heavy metals settling on sample surfaces. Different methods of filtration were used in order to extract the metals from the surfaces of the samples. The most abundant metals in honeybees and propolis, and on plant and soil samples, were Sn and As (p<0.0001). In air samples0, the most abundant metal was Pb followed by Sn (p<0.05). These findings indicate that the honeybee and its propolis are good indicators for Sn and As contamination.
Neste estudo, amostras de abelhas, própolis, ar, solo e plantas foram coletadas em dois locais contrastantes Ħal Luqa (área industrial) e L-Imġarr (área agrícola) no continente de Malta. Os metais pesados ​​superficiais foram extraídos das amostras e testados por espectrometria de emissão atômica com plasma de microondas, a fim de determinar as concentrações de Ag, As, Cd, Cr, Cu, Pb, Sn, Zn, Ni e Hg. As amostras de abelhas e própolis foram digeridas com ácido nítrico e peróxido de hidrogênio e, em seguida, moídas com forno de mufla para preparar soluções minerais. Simultaneamente, os amostradores de ar, o solo e as plantas foram lavados com água desionizada, a fim de extrair os metais pesados ​​depositados nas superfícies das amostras. Diferentes métodos de filtração foram utilizados para extrair os metais das superfícies das amostras. Os metais mais abundantes nas abelhas e própolis e nas amostras de plantas e solo foram Sn e As (p <0,0001). Nas amostras de ar0, o metal mais abundante foi o Pb, seguido pelo Sn (p <0,05). Esses achados indicam que a abelha e sua própolis são bons indicadores de contaminação por Sn e As.
 
Publisher Universidade Federal de Campina Grande - UFCG
 
Date 2020-01-20
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/282
10.22571/2526-4338282
 
Source Acta Brasiliensis; Vol 4 No 1 (2020): Acta Brasiliensis; 60-69
Acta Brasiliensis; Vol 4 No 1 (2020): Acta Brasiliensis; 60-69
Acta Brasiliensis; Vol 4 No 1 (2020): Acta Brasiliensis; 60-69
2526-4338
2526-432X
 
Language eng
 
Relation http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/282/89
 
Rights Copyright (c) 2020 Acta Brasiliensis
 

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