Everyone knows that humans need pure drinking water to sustain life. But are Brisbane residents drinking clean water? Brisbane's water pollution problem is starting to get out of hand. If something isn't done soon, it will be too late to do anything. When people imagine water pollution they normally think of muddy water, but Brisbane's problem goes much deeper than that. Physical and chemical pollutants have contributed to the problem, and things continue to get worse. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay Physical pollutants were the most common causes of pollution in Brisbane. This is because they can be seen with the naked eye. Brisbane's lakes and streams have been infested with garden waste, rubbish, soil, animal remains, shopping trolleys and even abandoned car bodies. These pollutants don't seem serious, but they actually prevent the production of oxygen in the water. With less oxygen, marine life dies and algae thrive in the oxygen-poor water. Brisbane also has many chemical-infested waters. Illegal waste dumping and urban runoff have all been major culprits in the problem. Chemicals found in Brisbane's lakes include pesticides, PCBs and PCPs. They are all very toxic chemicals and can have devastating effects if consumed by humans or marine life. They also reduce the amount of oxygen produced in the water, once again promoting the growth and reproduction of algae. It is much more difficult to remove chemical pollutants from water than physical pollutants. The process of cleaning chemicals from water is expensive and time-consuming. It is also a fact that once water has been infected with chemicals, it cannot be made completely pure again. While it is much easier to eliminate physical pollution, it is never easy to eliminate the resulting algae. This is also a long and expensive process. Furthermore, water is never completely purified from this pollutant. The proof can be deduced by letting a glass of tap water sit for an hour. You will see a deposit of dirt at the bottom of the cup. What can be done to solve this problem? The state government has come up with a simple plan. Don't throw your waste into waterways! They have also made it illegal for industry companies to dump their unwanted toxic waste into our waterways. Please note: this is just an example. Get a custom paper from our expert writers now. Get a Custom Essay With the government dealing with the problem of waterway pollutants , there is not much the individual can do. However, if everyone stopped dumping waste, the city of Brisbane will have much cleaner waterways and, as a result, cleaner drinking water..