Water Pollution

"Pollution" means hazardous wastes and other pollutants. Including sludge or residue from it that was dumped from the pollution source. Or existing in the natural environment. Which caused a negative impact on the environment and harm the health of the people. Including radiation, heat, sound, light, vibration, odor  that has occurred or is released from the pollution source.

"Pollution" means the environmental conditions change or contaminated by pollution. This makes the quality of environmental degraded, such as water pollution, air pollution. And soil pollution

"Waste" means waste that is in a state of flux. Including mixed pollutant Or contamination is
the liquid

Types of water pollution 

1. Nutrients Pollution
Some wastewater, fertilizers and sewage contain high levels of nutrients. If they end up in water bodies, they encourage algae and weed growth in the water. This will make the water undrinkable, and even clog filters. Too much algae will also use up all the oxygen in the water, and other water organisms in the water will die out of oxygen starvation.

2. Surface water pollution
Surface water includes natural water found on the earth's surface, like rivers, lakes, lagoons and oceans. Hazardous substances coming into contact with this surface water, dissolving or mixing physically with the water can be called surface water pollution.

3. Oxygen Depleting
Water bodies have micro-organisms. These include aerobic and anaerobic organisms. When to much biodegradable matter (things that easily decay) end up in water, it encourages more microorganism growth, and they use up more oxygen in the water. If oxygen is depleted, aerobic organisms die, and anaerobic organism grow more to produce harmful toxins such as ammonia and sulfides.

4. Ground water pollution
When humans apply pesticides and chemicals to soils, they are washed deep into the ground by rain water. This gets to underground water, causing pollution underground.

5. Microbiological
In many communities in the world, people drink untreated water (straight from a river or stream). Sometimes there is natural pollution caused by micro-organisms like viruses, bacteria and protozoa. This natural pollution can cause fishes and other water life to die. They can also cause serious illness to humans who drink from such waters.

6. Suspended Matter
Some pollutants (substances, particles and chemicals) do not easily dissolve in water. This kind of material is called particulate matter. Some suspended pollutants later settle under the water body. This can harm and even kill aquatic life that live at the floor of water bodies.

7. Chemical Water Pollution
Many industries and farmers work with chemicals that end up in water. This is common with Point-source Pollution. These include chemicals that are used to control weeds, insects and pests. Metals and solvents from industries can pollute water bodies. These are poisonous to many forms of aquatic life and may slow their development, make them infertile and kill them.

8. Oil Spillage

Oil spills usually have only a localized effect on wildlife but can spread for miles. The oil can cause the death to many fish and get stuck to the feathers of seabirds causing them to lose their ability to fly.

Water Pollution

The Ciliwung River is 119km long and passes through the Bogor Province, Depok District and the city of Jakarta in Indonesia. It is renowned for being one of the most heavily polluted rivers in the world. Many Indonesian citizens are forced to live by the river because it is all they can afford. Of the ten million people in Jakarta, half live on less than US$2 per day, and a large percentage of those people live along the Ciliwung. People that live along the Ciliwung use it for everything from washing themselves to cleaning clothes and dishes, to swimming. Contamination from human waste is the biggest cause of pollution in the Ciliwung. There is no organised rubbish collection for this area, so waste ends up in the river. Because they cannot afford clean drinking water, many of the residents are forced to boil and drink the water from the river, causing a raft of health problems. In 2009, a group of residents from Bogor with growing concerns about the river formed the Community Care for Ciliwung group ('Komunitas Peduli Ciliwung, or KPC). The group focuses its acitivities on picking up trash from the river every Saturday morning, and also facillitates other community activities such as tree planting days