Polycyclic aromatic hydrocarbons and risk elements in honey from the South Moravian region (Czech Republic)

Petra Batelková,Olga Čelechovská,Klára Bartáková,Lenka Vorlová,Ivana Borkovcová

doi:10.2754/avb201281020169

Abstract

The aim of this study was to determine the actual content of some exogenous contaminants in the honey from the South Moravian region of the Czech Republic. The content of polycyclic aromatic hydrocarbons (PAHs) and risk elements (Mercury - Hg, Cadmium - Cd, Lead - Pb, and Arsenic - As) in multifloral blossom and honey dew samples of honey were determined by high-performance liquid chromatography and atomic absorption spectroscopy methods. The samples were collected form beekeepers and from retail stores located in South Moravia in the Czech Republic. Concentrations of individual PAHs in honey samples ranged between 0.02 μg·kg-1–1.93 μg·kg-1. The limit of benzo[a]pyrene for infant formula (1.0 μg·kg-1) was not exceeded and fluoranthene was not quantified in any of the samples. Concentrations of Hg, Cd, and Pb were in the range of 3.24 μg·kg-1–11.31 μg·kg-1, 0.95 μg·kg-1–32.35 μg·kg-1, and 22.80 μg·kg-1–177.85 μg·kg-1, respectively. Concentration of As exceeded the detection limit only in three samples, ranging from 3.51 μg·kg-1 to 4.35 μg·kg-1. Acceptable limits for trace elements in infant formula were met. Results of this study complete present knowledge of the contaminant content in Czech honey and confirmed high quality and safety of honey from the South Moravian region.

Highlights

The aim of this study was to determine the actual content of some exogenous contaminants in the honey from the South Moravian region of the Czech Republic
The aim of our study was to determine the actual content of exogenous contaminants, i.e. polycyclic aromatic hydrocarbons (PAHs) and toxic elements (Hg, Cd, Pb, and As) in honey from the South Moravian region of the Czech Republic, to compare our results with known data obtained from previous studies, and to confirm the quality and safety of the honey tested
Repeatability expressed as relative standard deviation (RSD)

Summary

Introduction

The aim of this study was to determine the actual content of some exogenous contaminants in the honey from the South Moravian region of the Czech Republic. Honey is considered an environmental marker due to its ability to contain harmful substances coming from polluted environment and beekeeping practices, e.g. trace elements (Conti and Botre 2001), pesticides (Blasco et al 2003), antibiotic residues (Hammel et al 2008), and polycyclic aromatic hydrocarbons (PAHs) (Dobrinas et al 2008). The aim of our study was to determine the actual content of exogenous contaminants, i.e. PAHs and toxic elements (Hg, Cd, Pb, and As) in honey from the South Moravian region of the Czech Republic, to compare our results with known data obtained from previous studies, and to confirm the quality and safety of the honey tested

Objectives

Methods

Results

Conclusion