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Sampling and monitoring of road and roof runoff and rainwater at Xuefu Road catchment in Kunming City were carried out during the period from March to April 2010, to study the characteristics of urban runoff pollution and analyze the acidity of rainwater after the once-in-a-century drought. It was found that the 3 rains which are not acid rains belong to sulfuric acid dominated type. Both TP and COD...
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