Impact of Anthropization on the Contents Made of Copper and Zinc in the Urban Soils: Case of the Concession of the Airport of Simi-simi in Kisangani in the Province of the Tshopo in RD Congo

Abstract

The present survey had like goal to value the impact of Anthropization on the contents made of copper and in zinc of the urban soils in the concession of the airport of Simi-simi suited in the Common Makiso city of Kisangani, Province of the Tshopo in Democratic Republic of Congo. In every substation, the investigatings have been made besides by the polls to the auger or less 60cm of depth. The samples of soil have been appropriated in: 0-10, 10-20, 20-30, 30-40, 40 -50 and 50-60 cm, giving a total of 18 prompt samples thus by substation and 126 prompt samples reduced to 42 composites for all 6 substations as well as the station-reference (witness) that is the concession of the IFA-Yangambi in the PK41 on the Ituri road. The elements traces metallic copper and zinc have been analyzed and have been measured out by the method of ammonium acetate to the atomic absorption spectrophotometer in presence of EDTA to pH7. Middle content made of most elevated copper is of 782,78 µg/g under station of pure and weakest corn that is 328,42µg/g in relation to all other occupations of soil. Middle content made of more elevated zinc in the dense forest (reference) with 62,98±23,57µg/g and weaker in the cassava-peanut substation with 44,59±23,62µg/g by report others occupation of soil studied in our zone of survey. The impacts of anthropisation are negative to the level of zinc, it observes itself so much in the substations that in their respective slices, what means that the activities practiced in the site of the airport of Simi-simi drew on the reserves of their soil made of zinc more that in copper, although in weak quantities that for this last.