Muli Elliud, Kilonzo Joseph, Dogley Norman, Monthy Gerald, Kurgat Justus, Irungu Janet, Raina Suresh
International Center of Insect Physiology and Ecology (icipe), Nairobi, Kenya.
South Eastern Kenya University, Kitui, Kenya.
Bull Environ Contam Toxicol. 2018 Oct;101(4):451-457. doi: 10.1007/s00128-018-2423-4. Epub 2018 Aug 24.
Pesticide residues in honey and pollen from Seychelles against a target of 108 pesticides using LC-MS/MS were analyzed. Fifteen pesticides were detected, at trace levels (< 15 ppb) and below the acceptable maximum residue limits (MRLs) as per EU regulations. In honey, six insecticide and three fungicide residues were detected. Eight insecticide and four fungicide residues were detected in the pollen matrix. The least contaminated honey and pollen samples had three and nine chemical residues respectively while the most contaminated honey and pollen samples had eight and eleven chemical residues respectively. Contact and oral LD values were used to calculate Pollen Hazard Quotients (PHQ) = concentration in ppb ÷ LD as µg/bee. The pollen hazard quotients (PHQ) obtained are way below those reported in literature. Residues were detected in low quantities, however, their high frequency and diversity and possible synergistic interactions may lead to negative impact on honeybees' health in Seychelles.
对塞舌尔蜂蜜和花粉中的农药残留进行了分析，采用液相色谱-串联质谱法（LC-MS/MS）针对108种农药进行检测。共检测出15种农药，其含量处于痕量水平（<15 ppb），且低于欧盟法规规定的最大残留限量（MRLs）。在蜂蜜中，检测出6种杀虫剂残留和3种杀菌剂残留。在花粉基质中，检测出8种杀虫剂残留和4种杀菌剂残留。污染最少的蜂蜜和花粉样品分别含有3种和9种化学残留物，而污染最严重的蜂蜜和花粉样品分别含有8种和11种化学残留物。使用接触和经口半数致死剂量值来计算花粉危害商数（PHQ）=以ppb为单位的浓度÷以μg/蜜蜂为单位的半数致死剂量。所获得的花粉危害商数（PHQ）远低于文献报道的值。虽然检测到的残留物数量较少，但其高频率、多样性以及可能的协同相互作用可能会对塞舌尔蜜蜂的健康产生负面影响。
