In message , at 09:54:55 on
Tue, 15 Nov 2016, Optimist remarked:
You aren't comparing like with like. The mercury in lightbulbs is a
danger to the environment, that in a barometer is a danger to people in
the same room when it breaks, and for years afterwards as the mercury
lodged in cracks evaporates.

I've never of a case of one breaking. Have you?

There's a few here.

https://www.health.ny.gov/environmen...ercury/mercury
_spill_incidents.htm

So a handful of cases in the USA.

That's just one State.
--
Roland Perry