An article detailing the efficiency of carbon filtration at removing volatile organic chemicals, including pesticides, herbicides and a host of others. //

Contaminants that people most frequently want removed that are not readily removed by carbon filtration are fluoride, nitrates, and sodium. Reverse osmosis and distillation remove all three, so either combined with a high quality carbon filter provides complete treatment. All three can also be removed by selective, non-carbon filters designed for the purpose. For example, you can obtain a double filter with one fluoride and one carbon cartridge if fluoride removal is desired. //

To summarize, carbon is an extremely versatile and highly effective water treatment medium. It has immense surface area. A single pound of granular activated carbon has a filtering surface area equivalent to 125 acres! It is the best known treatment for organic chemicals, VOCs, pesticides, herbicides, and chlorine and its by-products. It is also an unchallenged taste-and-odor improver. When arranged in solid carbon or extruded carbon block format, it also provides very high quality particulate filtration, in some cases down into the sub-micron level.