How else can mercury get into the air...

Into our brains lungs organs...

Fires Fuel Mercury Emissions.. University Of Michigan study..

Forest fires release more mercury into the atmosphere than previously recognized..

Also...


Forests act as mercury traps because mercury in the atmosphere—which comes from both natural and human-generated sources such as coal-fired power plants and municipal waste incinerators—collects on foliage. When the foliage dies, it falls to the forest floor and decomposes, and the mercury enters the soil...



http://www.sciencedaily.com/releases/2007/01/070109172159.htm