Toddler broke a cfl in living room and touched it. we vacuumed it , toddler in room when cleaning up. we ventilated and evacuated the room only after cleanup and 10 minutes did this harm my child?

No: The tiny amount of mercury exposure from minimal handling and being around one broken light is so miniscule as to not worry. He probably gets more exposure eating tuna. Just don't break a bulb every day. And even though more expensive initially, think about led lighting - non-toxic and much less expensive over time to run. Use especially in bulbs that may be at risk for kids touching them.

Broken CFL bulb: See following site for proper cleanup: http://www2.Epa.Gov/cfl/cleaning-broken-cfl since child touched it & was present during cleanup, may want to contact pediatrician for test for mercury level. Can also call poison control # from website for more data. Follow instructions provided on website.