Detailed text transcripts for TV channel - KGO - 20130710:09:27:00
[applause] katie: and we're back with erin brockoe go before we go today, erin, i wanted to ask you about this new way to tell if you are living in an environmental danger zone. you have developed a map of the united states. tell us about that. >> it becomes a flag when i see three or four or five, six, 10 e-mails from the same community reporting the same problem. so i decided to start doing a map. a year ago, there was 350 red dots. today, there's over 4,000 red dots. so when all these numbers pop up for us to be able to statistically put them together, place them back somewhere so we can at...