Management strategy of environmental analysis laboratories, set up by National Institute of Environmental Analysis (NIEA), is utilized to promote the analytical data quality and execute the environmental monitoring policy. This year, this project executed overall quality evaluation for NIEA permitted subcontractors. The overall quality evaluation program included the evaluation of laboratory management system, onsite checks of stack gas sampling operation, and laboratory performance of selective NIEA test samples. For the purpose of maintaining inspection consistence throughout the study, introductory conferences were held to inform all subcontractors about the standard operating procedures (SOPs) in this project. In Taiwan, 95 subcontractors have been registered in various environmental analytical categories (air, water quality, drinking water, solid waste, noise and vibration, etc). This project accomplished 79 for subcontractor inspection, 5 for stack gas sampling, 62 for laboratory performance evaluation, 186 NIEA test samples , two conferences and four inspector seminars. Overall, this project has been fulfilled the original plan set up by NIEA. The inspection results of laboratory management system indicated that most subcontractors follow NIEA management subcontractor and the QA/QC.program. However, only few cases failed to reach the NIEA laboratory minimal requirement. Repeat visits of such subcontractors were suggested to maintain the result quality. Even only five inspections of stack gas sampling in this project, the result found out that most technical persons in various subcontractors were familiar with stack gas sampling technique. However, QA/QC requirement and executive fulfillment are the key issue. Employee should be more versatile to safety requirement, analytical methods, exhaust emission, usage of Valve A in automatic sampling process. 186 items of NIEA test samples were distributed to the target subcontractors. 95 items were re

Environmental analytical laboratory,system evaluation,test sample performance,Inspection category system