Dietary Risk Assessment and Ranking of Multipesticides in Dendrobium officinale

The presence of pesticide residues in Dendrobium officinale (D. officinale), a commonly used herbal medicine, has attracted much attention recent years. Therefore, this study presents the levels 141 forty D. samples, which were measured by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). And we deterministic estimate model to assess chronic and acute dietary exposure risk, as well cumulative risks for adults, children, specific groups consumers. Furthermore, residual risk individual pesticides was sorted adapting matrix-ranking scheme. In 92.5% 43 detected, difenoconazole had highest detection frequency. Multiple detected 85.0% one sample contained even up 17 pesticides. hazard quotient (HQc) (HQa) far below 100%, both indices (HI) did not exceed 100%. scoring scheme showed that four considered pose comparatively potential high including difenoconazole, carbofuran, fipronil, emamectin benzoate. results indicated occurrence could serious health problem public.