The storm has mixed drinking water and sewage, posing a severe risk of diarrheal diseases, and flooding has left vast pools of standing water where mosquitoes can breed and spread malaria and dengue fever.
Sewage poses still another threat to the lakes.
"Most of the sewage system is flowing into the sea, which makes the sea all polluted," Mr. Hassouna said, adding that the raw sewage poses health dangers for women and their children, who play in seaside areas.
Several experts have asserted that if proper and thorough filtration is carried out to remove bacteria, treated sewage can pose no damaging health effects and even be cleaner than commercial bottled water.
The areas are poorly ventilated and have inadequate sewage facilities, posing health and safety risks.
Our results support the premise that the Wen-Rui Tang River receives appreciable inputs of untreated sewage, which poses a serious risk to humans and environmental health.
The high content of bioavailable macroelements in sewage sludge, poses a potential threat to their leaching and run-off into groundwater, contributing to the emergence of eutrophication of water bodies.
There is rubbish in the water, and the open sewage nearby poses a high contamination risk.
Therefore, treated water and sewage sludge still pose a risk for environmental contamination.
