sentences:  Saline intrusion is when the ground is saturated with saltwater.The northeast Nile Delta region has a high incident rate of pancreatic cancer that is believed to be from high levels of heavy metals and organchlorine pesticides found in the soil and water.Exposure to cadmium is most commonly known through smoking, though it is believed that in this region, the exposure is from contact through the heavy metals and pesticides found in the soil and water.