Toxins get into our bodies through more than just food. We are exposed to them through our carpets, lawn chemicals-even our clothing. Each day this week, we will post a new, easy tip to help you detox your kitchen and your diet.

Here's today's tip:

Tip 6: Filter Your Tap Water

You might not think of water as a source of toxins, but tap water can in fact contain up to 315 pollutants, including arsenic (a heavy metal) and pesticides, according to a 2009 analysis by the Environmental Working Group. And bottled water can contain the same contaminants as tap.

Fortunately, there's an easy fix–filter your tap water. Look for a filter for your sink, a pitcher filter or even one in a water bottle. Just make sure it's certified by the Water Quality Association ( or NSF International ( to screen out pesticides from farms and golf courses that can leach into well water. (Even tap water may contain traces of unregulated pesticides.) In most cases, a $15-20 PUR or Brita pitcher filter will do the trick. (How much water do you really need to drink? Find out.)

For more Green Up Your Kitchen Challenge tips, visit the Green Up Your Kitchen Challenge landing page.