When Clean Water Becomes Scarce
We need clean water for everything: drinking, growing food, and staying healthy. Pollution from medicine, farming, and plastic is threatening rivers, lakes, and oceans all over the world.
The Sabarmati River, India
In 2007, scientists discovered something alarming in the Sabarmati River near the city of Patancheru, India, an area packed with hundreds of pharmaceutical factories. The river contained extremely high levels of antibiotics and other drugs. In some spots, a single cup of river water contained more of the antibiotic ciprofloxacin than a patient would take in a full medical dose.
A follow-up study published in 2017 found antibiotic levels in the river mud near drug factories that were up to 1,000 times higher than what scientists consider safe. People who lived nearby and used this water for drinking, bathing, and watering crops were being exposed every single day.
Worse, constantly having antibiotics in the environment was causing bacteria to become resistant to those drugs. This is called antibiotic resistance, a growing global crisis that makes infections that were once easy to treat much more dangerous.
We are in a race against time. Antibiotic resistance is one of the greatest threats to global health, food security, and development. And pollution from pharmaceutical factories is pouring fuel on the fire.
Major Causes of Water Pollution
Water pollution comes from many directions. Here are the biggest sources.
Sewage and Wastewater
Human waste from cities and factories that is not properly cleaned before being released can carry bacteria, viruses, and harmful substances into rivers and lakes.
Runoff from Farms
When it rains, fertilizers and pesticides from farmland wash into nearby streams and rivers. This can cause massive algae growth that chokes out other life in the water.
Medicine in the Water
Medications that get flushed down drains or pass through our bodies end up in waterways, including antibiotics that can make bacteria harder to treat over time.
Oil Spills and Plastic
Oil spills coat the ocean and kill wildlife. Plastic breaks into tiny pieces called microplastics that get eaten by fish and other animals, and eventually by us.
Heat Pollution
Power plants and factories sometimes dump hot water into rivers. This raises the water temperature, lowers oxygen levels, and can stress or kill the fish and plants living there.
City Stormwater
When it rains in a city, water runs over roads and parking lots picking up motor oil, trash, and pet waste, then flows directly into nearby waterways without being cleaned.
Solutions That Work
Cleaning up our water takes action at every level. Here are some of the most important things that help.
- ✓Reduce plastic use
Use fewer plastic bottles, bags, and straws. Plastic waste often ends up in rivers and oceans, harming fish and other animals.
- ✓Properly dispose of chemicals
Never pour paint, oil, medicine, or cleaning products down the drain or toilet. Take them to special disposal sites instead.
- ✓Use fewer fertilizers and pesticides
On lawns or farms, extra chemicals wash into lakes and rivers when it rains. Using less helps keep the water clean.
- ✓Pick up pet waste
Animal poop contains germs that can wash into storm drains and pollute nearby water. Always bag it and throw it in the trash.
- ✓Plant trees and native plants along waterways
Plants along rivers and lakes act like a filter. Their roots trap dirt and soak up pollution before it reaches the water.
- ✓Don't litter
Trash on streets gets carried by rain into storm drains, which often flow directly to rivers or oceans. Always use a trash can or recycle.