Purified water is a very controversial topic. Is it useful and a good thing for the world? Or is it a security issue? Each person has their own opinion. Many can speak for each side of the issue. There have been some studies done that prove both sides of the issue correct. Some researchers claim that purified water is as safe as regular tap water. It also helps communities experiencing drought. It can be used for watering plants, even for drinking if the quality is deemed high enough and much more. Other researchers say purified water is a danger to people because it can contain heavy metals, pesticides and pathogens that can contaminate the water. Some of the chemicals found in purified water are chloride, nitrogen, and phosphorus, none of which are terribly harmful to humans, but can cause harm to plant life. Additionally, many people simply don't like the idea of ​​drinking or even reusing purified water. Recycled water may continue to be a controversial topic for a while because many people like the idea of ​​reusing it, but many think it's disgusting and potentially dangerous. Where does this recycled water come from? Well, it comes from several sources. In some places, cities collect rainwater after a storm. This water is filtered for up to a year to make it as clean as possible. Other cities may collect wastewater from toilets, showers, sinks and drains. This water passes through filter after filter after filter to ensure clean water. Several large cities such as Los Angeles and Miami have already tried using purified water to solve their water problems. The goal of these “experiments” is to save as much good water as possible, especially during periods of drought. These "...... half of the document ......Project o-Tap." Environmental Health Perspectives 108.10 (2000): A447. Expanded Academic ASAP. Web. May 21, 2014.4."Use of reclaimed drinking water supplies." Journal of Environmental Health 60.10 (1998): 39+. Extended Academic ASAP. Web. May 21, 2014.5.Barringer, Felicity. “As the 'yuck factor' subsides, treated wastewater flows from the taps.” New York Times February 10, 2012: A1(L). Science in context. Web, May 21, 2014. Galbraith, Kate “Adversity Creates Boom for Reclaimed Water,” July 24, 2011: A21A(L). Context. Web. May 21, 2014.7."Florida cities to meet needs through purified water." Clean Water Report 11 July 2007: 132. Science in Context Web. 21 May 2014.8."Antibacterial ingredient in sludge could pose risk." Clean Water Report 15 May 2006: 91. Science in Context. Web. 21 May 2014.