Comparison of Size Distribution Characteristics of Particulate Matter Collected from Non-Ferrous Metals Industrial Complexes during the Four Seasons

摘要

This study compared size distribution characteristics of ambient particular matter collected from the non-ferrous industrial complex site during the four seasons. The sampling site was located in the central part of the non-ferrous metal IC where is apart from the east sea about 2km. Samplings were conducted using an cascade impactor, which consist of eight steps for particle size separation. The average of spring PM concentration is much higher than other seasons. PM2.5 fraction showed about 65% in the winter. Not only sampling site characteristics such as processing of non-ferrous metals and ores but also surrounding condition of sampling site have influence on PM concentration and fraction of particular matter.