... although not all coal,
is the same. 

• Anthracite coal
• Bituminous coal
• Brown coal (lignite)
• (you-name-it coal).

Different types of coal,
and the ash produced by
burning it, contain
differing amounts of:

• Sulphur
• Arsenic
• Lead
• Mercury
• Chromium
• Selenium
• Boron
• other toxins