How much pollution can water take before it becomes unsafe?

I Have A Science Fair Project coming up and i have never done a science fair project so this would really help. My question is How much pollution can water take before it becomes unsafe? I do not have a hypothesis yet or the data =[

when heads of buffalo stop and take a break on your property

This entry was posted on Sunday, January 17th, 2010 at 6:11 pm and is filed under pollution water. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “How much pollution can water take before it becomes unsafe?”

longshot on January 17th, 2010 at 11:42 pm

when heads of buffalo stop and take a break on your property
References :

Okavango Challenge