In today's world, water pollution is becoming a bigger issue in South America, as well as around the globe. This problem exists all over South America due to the lack of laws and restrictions made and enforced by the governments in these countries. In some places, sewage treatment plants are almost non-existent and the ones that do exist are out-dated and not in working condition.
Did you know that in some places in South America sewage runs right out of houses and into nearby rivers and lakes, causing the drinking water to become severely contaminated? This ends up causing harmful side affects on the inhabitants in the area that must survive off this water. .
South America is inhabited by 3rd World Countries where development is little, poverty and populations are high, and money is hard up. Governments try to raise money and use tax money to fix the severe problem of water pollution but it is not enough to provide working sewage treatment plants that can accommodate the rapidly growing population and the rapidly decreasing amount of water available for use. .
Many people are uneducated of what can be found in sewage. The sewage in South America contains grease, nutrients (nitrates, phosphates, and food waste), debris, oxygen-demanding chemicals (BOD, COD) acids/alkaloids/salts, toxic chemicals pathogens (disease-causing organisms) suspended solids, human drugs, human wastes, animal wastes, pesticides, and detergents.
In Mexico City, Mexico, the cause of pollution is the some 30 million inhabitants that contribute to air pollution, smog, and industries that release their wastes into nearby rivers and tributaries. But, in this case, the shortage of water is also a main contribute to the problem. Underground wells become polluted due to the chemicals found in the soils on the land of what used to be covered with several lakes hundreds of years ago. .
In other places such as Buenos Aires, Argentina, slaughter houses dump the left over carcasses right into the Rio de la Plata, which end up rotting way due to the polluted water.