Water is one of the most important resources for humans and the environment. Water pollution affects the drinking water we need to survive. It also affects rivers, lakes and oceans, which are habitats for marine life. Water pollution is one of the biggest problems in our environment. It has been suggested as a major cause of death and disease. Water pollution is the contamination of water with chemicals and other substances that can affect plant, human, or animal health. There are many types of water pollution. Pollution is said to be point source if it originates from a single source and non-point source pollution if it originates from multiple sources. Water is one of the most important things for us humans. What would you do without her? What would you do if one day you used up all the clean water supplies? Can you see the rain that's been falling on us lately? The rain we experience and see these days is not normal rain; it's called "acid rain." Why does acid rain occur? Yes, you got it right; it is somehow related to water pollution. That's why we have Kool-Aid and a bright blue waterfall. This is also the reason why water can get very dirty. Toxic substances from farms, towns and factories easily dissolve and mix, causing water pollution. Water contaminants can cause illness or act as poisons. Bacteria and parasites in poorly treated wastewater can enter drinking water and cause digestive problems such as cholera and diarrhea. Hazardous chemicals, pesticides, and herbicides from industry, farms, homes, and golf courses can cause acute toxicity and immediate death, or chronic toxicity that can lead to neurological problems or cancer. Many water contaminants enter the body when water is used for drinking and for preparing food. Contaminants enter the digestive tract. From there it can reach other organs in the body and cause various diseases. When you wash your clothes or swim in polluted water, the chemicals come into contact with your skin and can cause skin irritation. Hazardous chemicals in water systems can also affect animals and plants that live there. May give these organisms can easily get sick or develop more serious poisoning symptoms just by surviving with the chemicals in their systems and being eaten by humans. They may not be able to reproduce in the future. However, if these activities are not properly managed, water contamination with various types of contaminants can be inevitable. According to the authors, water pollutants include industrial chemicals, biocides, natural chemicals, industrial products, and consumer products. We also found that the manufactured nanomaterials are major water pollutants, and their impacts are contributing to the deterioration of aquatic ecosystems. Water pollution is the contamination of water sources with substances that make the water unsuitable for drinking, cooking, cleaning, swimming and other activities. Contaminants include chemicals, debris, bacteria, and parasites. Air pollution settles in lakes and oceans. Land contamination can seep into groundwater streams, then rivers, and finally the ocean. Therefore, waste dumped in vacant lots can end up contaminating the water supply.