re: We've had posts on this website about the dangers of microscopic Lunar dust.
Already ahead of you.
http://www.nap.edu/openbook.php?isbn=0309084261
The Safe on Mars Report has a chapter on t he physical and another on the checmical hazards to future astronauts.
Bottomline, given what we know now prolonged exposure is deadly and that will drive the design of Mars surface missions to control dust. Think of it as the ultimate hazmat site.