信阳茶叶农药残留检测及其风险评估

Detection and risk assessment of pesticide residues in Xinyang tea

中文关键词:  信阳茶叶  农药残留  检出率  零超标  高度风险

英文关键词:Xinyang tea  pesticide residues  detection rate  zero exceeding standard  high risk

中文摘要:

      目的 了解信阳地区茶叶农药残留情况及其风险程度。方法 2013—2020年连续8年收集信阳地区茶叶样品132个, 在同一年按照国家标准、农业行业标准等规定的农药测定方法进行测定。运用危害物风险系数法进行农残风险评估。结果 132个信阳茶叶样品中, 检测出农药残留样品100个, 农药残留检出率为75.76%, 共检测到农药种类19种, 农药残留超标率为0。危害物风险系数评估显示, 噻虫啉、唑虫酰胺、呋虫胺存在高度风险。结论 信阳茶叶农药残留检出率较高, 但其含量均在国家标准所规定的限量值内, 整体处于安全水平。

英文摘要:

      To understand the situation and risk of pesticide residues in tea in Xinyang area. Methods From 2013 to 2020, 132 tea samples from Xinyang were continuously collected and tested in the same year according to the pesticide determination methods stipulated by national standards and agricultural industry standards. Hazardous material risk coefficient method was used to evaluate pesticide residue risk. Results Among 132 Xinyang tea samples, 100 pesticide residues were detected, and the detection rate of pesticide residues was 75.76%. A total of 19 kinds of pesticides were detected, and the pesticide residue exceeded standard rate was 0. Risk coefficient assessment of hazardous substances showed that thiamidacloprid, zoltranamide and dinotefuran had high risk. Conclusion The detection rate of pesticide residues in Xinyang tea is high, but the content of pesticide residues in Xinyang tea is within the limit value stipulated by national standards, and the overall level is safe.