Arsenic in groundwater affected by phosphate fertilizers at São Paulo, Brazil

摘要: This paper studies metalloid mobility in soils produced by conventional farming methods. The of arsenic depends on several factors including redox potential, soil mineralogy, pH, and the presence other anions that compete with As for retention sites, example, phosphate. Phosphate enhances competing adsorption sites. Arsenic may accumulate through application fertilizers. Ingestion inorganic contained drinking water is known to cause cancer. Studies were carried out an area Jundiai, Sao Paulo Brazil high levels natural from domestic wells. Jundiai was studied period 1998–2001. phosphate fertilizers a wide scale common agricultural practice. Based data field laboratory experiments, deterioration groundwater quality result mainly fertilizer use due excessive P application, overdosing phosphate, undesirable additions