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Water pollution is one of the major problems of the environment of today.

The pollution can also be caused by sediment, nutrients, toxic chemicals, and pathogens. Then it occurs when these contaminants are discharged into the water. What is water pollution? Well there are many types of water pollution and they all contaminate bodies of water such as rivers, oceans, aquifers, lakes, and groundwater. As it says in this article, “Water full of debris, sludge, and dark foam is surely one of the strongest and most easily recognized symbols of our misuse of the environment” (Blanchfield).

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Obviously water pollution is a terrible problem in our environment and the most terrifying thing is that we have different types and sources of them. The most evident type of water pollution affects surface water which is the top of the body of water. Not only does it look bad to eye it can also be unsafe. As it says here, “In Poland, for example, 85 percent of all surface water is unfit to drink. The Vistula River, which winds through the country’s most heavily industrialized region, is so badly polluted that more than half the river is utterly devoid of life and unsuited even for industrial use.” (Blanchfield). Some water pollution can pollute some of the most important bodies of water.

If Poland was a developing country it would be a more of an issue towards the residents there. Another type of water pollution is groundwater. Groundwater is the water kept underground in aquifers. These aquifers feed rivers and supply our everyday water that we drink and use. Groundwater pollution is caused by by weed killers and fertilizers that seep through the ground. In this passage it says, “Only 63 percent of groundwater resources in China can be used for drinking water due to pollution levels” (Blanchfield). China’s population is over 1.

3 billion and only that much groundwater is accessible. This is problem with what is stated as the most populated country in the world. Even though this pollution is less evident than groundwater the problem it causes are morally the same.

One of two ways pollution can occur is a point-source pollution. Point source pollution comes from a specific location that you can easily point out if you were asked what caused it. As Blanchfield says in his article, “Factories, power plants, sewage treatment plants, underground coal mines, and oil wells are classified as point sources because they discharge pollution from specific locations, such as drainpipes, ditches, or sewer outfalls” (Blanchfield). These are all examples of points sources and they all come from a single location. The second way pollution can occur is nonpoint pollution. This pollution comes from many sources surrounding the body water. Based on what I read here, “Nonpoint sources include runoff from farm fields, golf courses, lawns and gardens, construction sites, logging areas, roads, streets, and parking lots” (Blanchfield).

In contrast to point-source there is no specific location this pollution has come from. These multiple sources make it hard to monitor and treat. In conclusion, there are many ways these pollutions are detected. Scientists takes samples of water and measure the concentrations of multiple chemicals it contains. According to this text, “” Any physical, biological, or chemical change in water quality that adversely affects living organisms or makes water unsuitable for desired uses can be considered pollution.” (Lerner/Wilmoth). If the chemicals are too hazardous the water is labeled as polluted. This measurement is known as chemical indication.

Another way is to examine the organisms the specific body of water contains. If many organisms can live there the water quality is considered good. If the organisms can’t the water is poor. This is called biological indications.