目前全世界都在面临同一个问题，那就是人口数量的剧烈增长带来对食品生产的需求量加大的压力。以农业为首的其中一种生产服务业需要生产资源的高投入。在农业活动中，人们普遍利用除草剂来控制农田里的有害的或者多余的杂草，以确保生产力。例如，在青岛胶州湾的活水里发现了含量较高的两种除草剂：莠去津和乙草胺。在本文中，作者在胶州湾附近两个海鲜市场采集样本并采用QuEChERS法提取胶州湾两种市场类型的水生生物群（n=54）中持久性除草剂的浓度，并用UHPLC-ms/ms进行分析。再利用该区域之前收集的数据和水生生物群的运动轨迹去计算生物浓缩系数。再根据化学物质在食物链和营养级间的传播规律来确定和计算除草剂对人类的健康风险，最终得到每日每人的安全食用量。乙草胺的浓度在LOD-0.038ng g-1之内，然而阿特拉津的浓度范围更高，在LOD-0.041ng g-1之内。乙草胺的生物浓缩系数(BFC=27.60 L kg^-1)远高于莠去津的生物浓缩系数（BCF=0.67 L kg^-1)。最后，乙草胺对于环境和水生生物物种有更高的潜在长期和短期风险。在现有的浓度下，乙草胺使得百分之四的物种处于风险之中，并且使得河口采集到的样本呈现中等风险。通过计算可得，一个体重为60千克的人每天吃超过6.21千克的胶州湾鱼才会有乙草胺引起的健康风险。对于莠去津，相同体重的人则需要每天食用超过7.37千克的来自海湾的鱼。鉴于在此地区环境和海洋中测定的除草剂含量较小，而且两种除草化学物质在食物链营养层中存在营养稀释，可以得到中国对除草剂的用量不高且对生物环境的影响不大的结果。

The needs of a fast developing population are accelerating the steps of production to meet the demand. Agriculture in one of those production services which is facing a high input of resources to ensure the productivity with herbicides to control undesirable weed among the most used products. Atrazine and acetochlor are used in high amount and their movement in the water medium have been reported in the Jiaozhou Bay. In this study, the concentration of these persistent herbicides in aquatic biota (n=54) purchased from two market types in the Jiaozhou Bay was extracted using the QuEChERS method and analysed by UHPLC-ms/ms. The water-biota movement to calculate the bioconcentration factor was determined from previously collected data in the region. Alongside the trophic magnification over the food change and health risks calculated based on Estimated Daily Intakes. Acetochlor has a concentration range from LOD-0.038ng g^-1 while atrazine concentration ranged between LOD-0.041ng g^-1. Acetochlor presents a higher bioconcentration factor (BFC=27.60 L kg^-1) than atrazine (BCF=0.67 L kg^-1). Finally, acetochlor has higher potential short and long-term risks to the environment and aquatic species with a prediction of 4% of species at risk at the current water concentration with the Estuary sampling region a medium risk level. Health risk dose a person with a weight of 60kg requires to eat around 6.21 kg of fish per day. For atrazine the same individual would require 7.37 kg of fish from the bay each day. Herbicide determination levels in the area and in marine organism are not high considering the levels of herbicides used in China with both herbicides revealing a trophic dilution over the food chain.