Aim to clarify detection problem of organochlorine pesticides including BHC and DDT in entry and exit section of the Ili River,joint research monitoring in Sandaohezi section and Duben section was conducted by both China and Kazakhstan.Because effective quality assurance and quality control(QA/QC) measures for organochlorine pesticides monitoring taken by Chinese lab was under the observation of Kazakhstan's expert,they fully recognized the accuracy and validity of the Chinese monitoring data,which ensuring...