Acute Lymphocytic Leukemia - Risk Factors

Indoor radon also does not appear to increase the risk for leukemia. (Radon does increase the risk for lung cancer, however, particularly in smokers).

People Highly Exposed to Toxic Chemicals

Decades of research show that those who work in the petroleum industry (where benzene is derived) have a two to threefold increased risk of developing leukemia (most often acute myeloid). Others who may be at some risk for leukemia and lymphomas include painters, agricultural workers, distillers, dye users, furniture finishers, and rubber workers.

People Exposed to Electromagnetic Fields

Because people's exposure to electromagnetic fields varies widely over the course of time, it is very difficult to determine any risk. The following are some observations from studies on determining who, if anyone, might be at risk for leukemia from exposure to electromagnetic fields:

• Evidence is mixed on any risk for living near high-power electrical lines. A 2001 study reported a small increase in risk for people living near high-voltage cables. Others have found no evidence of risk. In any case, the risk is still very small.
• One 2000 study suggested that people living in homes with wiring at very high current levels had a risk for ALL that was about 20% above average.
• Most studies have found that exposure to low-energy waves from household appliances does not increase the risk of childhood ALL.
• A 2000 study of workers highly exposed to wireless communication devices found no risk for leukemia or other cancers.

A major study is under way to determine if there is any association between magnetic field exposure and survival in children with ALL.

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