Human health problems caused by pollution

Any toxic or foreign material entering the water can be considered as a form of water pollution. Contamination of drinking water has been associated with gastrointestinal disorders, the spread of certain diseases, and sometimes death in severe cases. Younger children, babies and elder people are especially vulnerable to water borne pollution,. The parasites may be present in drinking water supplies. When visiting a developing country, tourists are advised to bring bottled water from elsewhere to avoid the consumption of local supplies which may have a number of microbes which can cause health problems for the tourist. Local people may be able to drink polluted water without being affected. .