As the continent's population has grown, so is the presence of wastewater, pesticides, land sediment, medical waste, possibly even discarded electronics all making their way into the Nile.

随着非洲大陆人口的增长，废水、杀虫剂、土地沉积物、医疗废物、甚至可能废弃的电子产品都进入尼罗河。