Capacity Evaluation of Laboratories of Indoor Air Quality Test Agencies in Beijing in 2005 / 环境与健康杂志

ABSTRACT

Objective To evaluate the capacity of air quality test of indoor air quality test agencies in Beijing. Methods 59 laboratories participated the evaluation. The standard reference (SRF) material, ammonia and benzene, were used as the test items and the national standard methods were used in the determination, the capacity evaluation was done by comparing the test values and Robust Z-Score. Results 28 laboratories (47.5%) presented a satisfactory result for both ammonia and benzene determination, 3 gave an unsatisfactory result for both items, 28 showed an unsatisfactory result or a result with some error in alternative1 item. Conclusion In the present study, only 47.5% of the investigated laboratories are satisfied. There are still some problems in the capacity of air quality test of test agencies in Beijing and the test capacity need to be improved.