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作 者:蔡琨[1] 李娣[1] 陈瑜 沈丽娟 朱冰川 许浩 姜晟[1] 李旭文[1] CAI Kun;LI Di;CHEN Yu;SHEN Li-juan;ZHU Bing-chuan;XU Hao;JIANG Sheng;LI Xu-wen(Jiangsu Provincial Environmental Monitoring Center,Nanjing,Jiangsu 210019,China;Jiangsu Suzhou Environmental Monitoring Center,Suzhou,Jiangsu 215000,China;Jiangsu Changzhou Environmental Monitoring Center,Changzhou,Jiangsu 213000,China;Jiangsu Wuxi Environmental Monitoring Center,Wuxi,Jiangsu 214000,China;Nanjing Hoan Environmental Monitoring Co.,Ltd,Nanjing,Jiangsu 210000,China)
机构地区:[1]江苏省环境监测中心,江苏南京210019 [2]江苏省苏州环境监测中心,江苏苏州215000 [3]江苏省常州环境监测中心,江苏常州213000 [4]江苏省无锡环境监测中心,江苏无锡214000 [5]南京皓安环境监测有限公司,江苏南京210000
出 处:《环境监控与预警》2022年第4期42-46,65,共6页Environmental Monitoring and Forewarning
基 金:江苏省环境监测科研基金资助项目(2010);江苏省生态环境科研课题基金资助项目(2020008)。
摘 要:为研究不同实验室藻密度监测数据的可靠性,现场采集了藻密度样品,处理为现场平行样和实验室前处理后平行样2种,分别由5家实验室的6名技术人员开展检测分析。参考相关技术规范要求,结合其他领域相似工作的成功应用案例,采用Z比分数法对分析结果开展藻密度实验室间比对。结果表明,数据的相对偏差均符合技术规范要求;对藻密度进行数据直接比对和对数转换后比对,各实验室对现场平行样和实验室前处理后平行样的检测结果均为合格;分析方法原理导致藻密度手工监测的绝对数值偏差较大,对当前的太湖水华预警工作适用性不高。Field parallel and after laboratory pretreatment parallel samples of algae cell density were collected and processed to study the reliability in different laboratories. Six technicians from five laboratories analyzed the samples independently. Refer to relevant technical specifications and the successful application cases in similar situations in other fields, the Z-score method is used to compare and evaluate the analyses among laboratories. The results showed that the relative deviation of the data was in line with the technical specifications. The test results of field parallel and after laboratory pretreatment parallel samples from each laboratory were qualified when compared directly to algal density data or logarithmic conversion. The principle of the algae density analysis method leads to large absolute figure deviation of manual monitoring, which means manual monitoring of algae is not suitable for the bloom warning of Taihu Lake.
分 类 号:X835[环境科学与工程—环境工程]
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