human
I've been hearing about the dangers of lead in drinking water. Is that something I need to worry about?
assistant
Yes, you should be concerned about lead in your drinking water. Lead is a heavy metal that can cause health problems when ingested. It's especially dangerous for children and pregnant women because it can affect their developing brains and bodies. The EPA has set a limit of 15 parts per billion (ppb) for lead in public drinking water systems, but some cities have higher standards. You can find out more information on the EPA website.