Abstract:

For discussing and evaluating  the possibal contribution to atmospheric pollution in the process of utilizing mineral resources，the pollution characteristics and sources of Cu element in the dustfall were evaluated in the typical mining city-Tongling. Seventeen dustfall samples in different function zones were collected and analyzed the Cu concentrations by ICP-AES. The method of copper enrichment factors (EF) were used to distinguish the possible pollution source. The result shows that the average of Cu concentration in the dustfall is 2 190 mg/kg and the maximum of copper EF is 391.5. Cu pollution in the dustfall is serious and the central areas of pollution are around the Cu mining and smelting factories. The mining and smelting of Cu ores are the primary pollution sources for the Cu pollution in the dustfall in Tongling.

Key words: dustfall, Cu element, EF, mining city, Tongling City