Levels of heavy metals in a multifloral Saudi honey

Environ Sci Pollut Res Int. 2019 Feb;26(4):3946-3953. doi: 10.1007/s11356-018-3909-7. Epub 2018 Dec 13.

Abstract

The presence of chemical pollutants, especially heavy metals, affects the quality of honey. The objective of this study was to determine the levels of eight heavy metals (As, Cd, Co, Cr, Cu, Ni, Pb, and Zn) in honey samples from Al-Baha region in Saudi Arabia, using inductively coupled plasma with optical emission spectroscopy (ICP-OES). The highest concentration was found for Zn (1707.93 μg kg-1), while the lowest was found for Co (3.04 μg kg-1). Cluster analysis and principal component analysis showed that two groups are recognized indicating two different metal sources. The first group includes only Zn and the second group includes the rest of the metals. In view of the recommended and established heavy metal intakes for humans, consumption of Saudi honey from Al-Baha should not be deemed a matter of concern for human health.

Keywords: Cluster analysis; Heavy metals; Honey; ICP-OES; Saudi Arabia.

MeSH terms

  • Environmental Monitoring
  • Environmental Pollutants / analysis
  • Food Analysis / methods
  • Food Contamination / analysis*
  • Honey / analysis*
  • Metals, Heavy / analysis*
  • Saudi Arabia
  • Spectrum Analysis / methods

Substances

  • Environmental Pollutants
  • Metals, Heavy