Rivers are a geological artery for life because they provide a channel for precious freshwater through land. Only a dozen or so rivers are responsible for 90% of the plastic waste in our oceans despite there being hundreds of rivers on the planet.
Due to urban, industrial, and agricultural pollution, some rivers are now toxic. When industries around the world create toxic wastewater, only 20% of it ends up being treated. The rest ends up in rivers, oceans, and lakes.
In some areas, the result is no access to sanitary drinking water. Dirty drinking water leads to more deaths than all forms of violence combined, including war. These rivers all have huge human populations living around them and utilizing them. However, these lifelines have little to no waste management systems in place, which has proven disastrous.
What are 13 of the most polluted rivers in the world? We’ll find out now.
1. Salween River in Southeast Asia
This river winds through Tibet, China, and Myanmar. Textile factories are a huge contributor to the river’s toxicity. Entire villages have given up on fishing to collect plastic and other recyclables from the river. They used to fish for things like catfish.
2. Ganges River in India
There is a goddess in Hinduism named Ganga, who is the personification of the Ganges River. Her role is forgiveness and purification, which makes the restoration and conservation of the Ganges even more important to many Indians.
Sins can be cleansed away for Hindus in the Ganges River. That leads to millions bathing in the river every year even though it’s very polluted. There is a layer of plastic garbage that floats on the surface.
Mass amounts of raw sewage end up in this river that over 2 billion people rely upon. Despite this, over 40% of the population of India looks to the Ganges as their source of drinking water.
More than a billion gallons of toxic materials are dumped in the river each day. Corpses are thrown into the water, yet untreated water is used for cooking. Water-related illnesses are common when a person contacts the water in any way.
3. Yellow River in China
The fastest-growing economy in the world is China due to its speed toward industrialization. In the process, these industries have dumped so much toxic waste into the Yellow River that it can’t even be used for agriculture.
There is natural sediment that’s yellow-colored, which helps to make the river look even dirtier. It is the third-longest river in Asia. More than 4 billion tons of pollutants are dumped into the river every year.
The Yellow River is a drinking water source for many people, which has caused a rise in water-related illnesses.
4. Mississippi River in the United States
More than 18 million Americans rely on the Mississippi River for drinking water despite it being heavily polluted. Industry, agriculture, and sewage are responsible for contaminating the waters.
Agricultural runoff containing nitrogen-based fertilizers gets into the river and reduces the oxygen levels of the water. This has caused a mass die-off of aquatic life. An 8,000 square mile dead zone exists at the mouth of the river into the Gulf of Mexico. Almost no life exists there.
5. Yangtze River in China
Oxygen levels have been reduced in the water, which has caused a mass die-off of life in the river. It is the third-longest river in the world and the longest in Asia. More plastic in the ocean originates from the Yangtze than anywhere else on Earth.
6. Buriganga River in Bangladesh
The Buriganga River is the biggest in Bangladesh. “Old Ganges” is the English translation of Buriganga. The city of Dhaka, with a population of around 10 million people, is most reliant on this river. The water is so polluted that it’s now black. Despite this, millions still rely on it as their main water source. There is no aquatic life left.
There are tanneries along the river that contaminate the water. There is a lot of garbage floating in the river, along with medical waste, dead animals, raw sewage, and discarded petroleum.
7. Pasig River in the Philippines
The usual player, industrial waste, is the main contributor to the deterioration of this river. It is considered biologically dead since no plants or animals can survive in its waters.
As this river runs through Manila, it plays host to slums caused by extreme poverty. The river is used as the only source of water, sewage, and trash disposal for these miniature cities.
8. Mantaza-Riachuelo River in Argentina
Raw sewage is released into this river in huge quantities. It is the most polluted river in South America.
The Mantaza-Riachuelo is nicknamed the Slaughterhouse River because of the amount of waste that tanneries and slaughterhouses along its banks produce. All this rot makes the entire river stink.
9. Citarum River in Indonesia
More than 2,000 factories dump their waste into the Citarum River. Mercury levels are more than one hundred times higher than they should be due to industrial waste. The river itself stinks because it is so polluted.
Over 30 million people use the Citarum River as their primary water source. Despite its toxicity, it is still used for domestic and agricultural purposes.
Dead fish are a common sight in the river. Their habitat has been devastated to the point that fishermen have turned to sifting through the river’s plastic waste. Selling plastic is more profitable than trying to catch contaminated animals that barely exist.
10. Sarno River in Italy
The source of this river is still safe to use for drinking water. The farther you go downstream, the dirtier the water gets from agricultural runoff and human industry.
The Sarno River frequently floods, and when it does, the toxins in the water saturate the ground and cause soil degradation. The surface of the water is often covered with foam created by chemicals and oil.
11. Yamuna River in India
India’s second most polluted river is the Yamuna which is a tributary of the Ganges. Raw sewage, industrial, and agricultural waste is dumped in the Yamuna.
Most waters have a pH of 7, but the Yamuna River’s pH is 11. At this point, even if proper water treatment was put into place, it probably wouldn’t help.
12. Marilao River in the Philippines
This is a main source of water for millions of people despite it being polluted with human, mining, and tannery waste. It is another river with so many toxins in it that water oxygen levels are negligible.
There is no life in this river as the water can’t sustain it.
13. Tijuana River in Mexico and the United States
Even though this river is small, the city of Tijuana heavily pollutes this river which dumps into the Pacific Ocean in the United States.
There are high amounts of agricultural pesticides in the water as well as most of the raw sewage for Tijuana. The river does dry up sometimes, and when this happens, the dust from the riverbed can cause illness.
Summary of 13 of the Most Polluted Rivers in the World
Here’s a recap of 13 of the world’s most polluted rivers that we took a look at.
|1||Salween River||Southeast Asia|
|4||Mississippi River||United States|
|13||Tijuana River||Mexico and the United States|
The photo featured at the top of this post is © Sk Hasan Ali/Shutterstock.com
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