青岛市区大气气溶胶的特征研究

The Characterstics of Atmopheric Aerosol in Qingdao Area

青岛市区大气气溶胶污染较为严重,尤其是在沧口工业区,TSP的浓度达到(1.42±0.4)mg/m^3。气溶胶质量浓度的大小顺序为:沧口>南京路≈气象局>沙子口>崂山顶。气溶胶中IP占TSP的60％。气溶胶呈碱性。>10μm粒子的水浸溶液或酸浸溶液的pH值要高于IP,碱性组分的含量也明显高于IP。SO_4^(2-)和NH_4^+主要存在于小颗粒中。

The atmospheric pollution of aerosol is very serious in Qingdao area. Most of the samples exceed the second grade of national standard, especially in Cangkou industrial area. The concentration of TSP reaches (1.42±0.4)mg/m3. The aerosol concentration is in the order of Cangkou > Nanjing Rd ≈Qingdao Meteorological Station >Shazikou >Top of the Laoshan mountain, the IP accounts for 60% of TSP in Qingdao area, and the aerosol presents alkaline; pH value of water soaking solution and acid soaking solution of coarse particles (>10μm) is greater than IP; the content of alkali is greater than IP obviously. The SC42- and NH4+ mainly exist in the small particles.