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Research on the content and character of four anions(SO_4~(2-) ,etc)in the air particles of Bao Tou Urban Districts

The paper discussed the content level and distribution character of four anions(SO 2- 4,etc)in the air particles of Bao Tou urban districts.First of all,the total suspending paarticles(TSP)were collected by organic filtering membrane.Next,they were pre-treated by technical measures including dipping into distillation water、supersonic-vibrating、micro-porous filtering membrance and electrodialysis.Then,the contents of SO -2 4、CL -1 、F -1 and NO -1 3 in the samples were analysed quickly by ion chromatography,and per unit concentration level of above anions were calculated respectively.Finally,the content level and distribution character of four anions in the air TSP of Bao Tou urban districts were found out in both heating and non-heating season.
【CateGory Index】: X831
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