Beijing Water Environmental Monitoring Center Beijing Environmental Protection Monitoring Center Water Inspection Center of Beijing drainage Group Beijing Chao-yang Hospital Beijing Production Quality Supervision and Inspection Center Disease Control and Prevention Center of PLA Dairy Products Quality Supervision and Inspection Center of Ministry Agriculture National Children Nurture Quality Supervision and Inspection Center National Food Quality Supervision and Inspection Center Central Laboratory, School of Public Health, Peking University Analytical Centre of Tsing Hua University Research Center for Eco-Environmental Sciences, Chinese Academy of Science Chinese center for disease control and prevention
Beijing Water Environmental Monitoring Center