Atmospheric concentrations of sulfur dioxide and Nitrogen dioxide in China and Korea measured by Using the improved passive sampling method

摘要

The results of ambient sulfur dioxide (SO_2) and nitrogen dioxide (NO_2) concentrations measured in ten cities of China and Korea by the improved passive samplers are reported. The property of this sampler is the utilization for the long-term exposure to the high level of SO_2 and NO_2. In this method, the conversion coefficients from the analytical data to the ambient Concentrations were obtained from the comparison with the direct concentrations through the Automatic analyzers for SO_2 and for NO_2, respectively.