Notice of RetractionSpatial Discrepancy of Nitrate and Nitrite Pollution in the Jiantan River in the Three Gorges Reservoir Area

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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Nitrate nitrogen and nitrite nitrogen concentration of surface water and groundwater samples in the Jiantan River in the Three Gorges Reservoir area were measured and analyzed to depict the spatial discrepancy of nitrate and nitrite pollution in the study basin. This study analyzed the correlativity of nitrate nitrogen, nitrite nitrogen, and the ratio of nitrate nitrogen and nitrite nitrogen with the altitude of surface water and groundwater sample sites, then revealed the spatial evolvement characteristics, resources and influence factors of nitrate nitrogen and nitrite nitrogen of the surface water and groundwater bodies in the study basin. The results show the transfer times of the surface water bodies and land use styles influence the correlativity of nitrate and nitrite nitrogen in the surface water bodies with the altitude of the sample sites. While the storage conditions of the groundwater bodies and the sources of the nitrogen influence the correlativity of nitrate and nitrite nitrogen in the groundwater bodies with the altitude of the sample sites. In the surface water bodies, nitrite is the intermediate product from ammonia to nitrate under the nitrification process, thus the nitrite nitrogen concentration offer quite a large quantity to the surface water bodies with the ongoing reaction. While the nitrogen pollution in the groundwater bodies is mainly nitrate nitrogen because of the more complete nitrification of nitrogen pollution in the groundwater conditions, leading to higher nitrate nitrogen level- than the nitrite nitrogen.