Dont worry about it.
I worked in a Fluorescent lamp factory for 15 years. on the exhaust machine, 10-50 mg of Hg would be dosed into each and every lamp. About 2-5% of the lamps( 4000 lamps per hr) would probably break before they made it into the box, guess where all that HG went, right on the floor. Didnt kill anyone. Also the area around the exhaust machine would be over 90F since lamps would be coming from a huge baker. The areas around the exhaust machine would be cleaned one a week with special vacuums but the amount of HG on the floors was incredibly high.
What you really dont want is to breath in Hg vapors, the term mad as a hater comes from that, because liquid hg heated over a fire was used in the construction of hats back when and the folks making the hats would be exposed to Hg vapors causing mental issues due to exposure.