By Roberta Attanasio It’s said to have a sweet smell, or a gasoline-like odor. It’s mostly in the air, and sometime in the water and soil.  It’s found all around the world.  It’s in cigarette smoke and gasoline vapors.  It’s a known human carcinogen – a substance known to cause cancer. It’s benzene. Its target organ is the bone marrow, the soft spongy tissue that lies within the hollow interior of long bones and produces all types of blood cells. The Agency for Toxic Substances and Disease Registry (U.S. Department of Health and Human Services) in the “Toxicological Profile for Benzene” states: “Everyone is exposed to a small amount of…