Investigation on the honey production of 72 bee farms in some southern provinces of Vietnam (Dong Nai, Gia Lai, Binh Phuoc, Lam Dong, Binh Duong and Dak Lak) during 2007-2010 years. and honey samples collected at the bee farms to analyze the toxic chemicals and antibiotics in honey. Using techniques of atomic absorption spectroscopy (AAS) for analysis of heavy metals of gas chromatography - mass spectrometry (GC/MS) to analyze the chemical residues of plant protection chemicals; of ELISA, high performance liquid chromatography (HPLC) and liquid chromatography mass spectrometry (LC/MS) to analyze antibiotics. Study results showed that: - Residues of heavy metals were found in honey in all study years. This result demonstrated the honey production environment has signs of light pollution on heavy metals; - Not found plant protection chemical residues of carbamat group; organochlorine group found only in 2007 and 2008; phosphorus organic group found in all study years. So, having light pollution signs on heavy metals in the environment for honey production: The danger of plant protection chemical residues contamination in honey tends to increase over time; - Some antibiotics have been found such as enrofloxacin, tylosin, streptomycine, sulphadiazine, tetracyclines. Especially chloramphenicol residue (banned group. A6) was found in 2007 and 2008 but no found in the following years. Trend of honey contaminated with antibiotics has already decreased but bee farmers have still overused antibiotics in the prevention and treatment for bees.
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