I s there a causal relationship between children exposure to low frequency magnetic fields and leukaemia?
In 1979, for the first time, Dr. Nancy Wertheimer and Dr. Leeper, two American researchers, highlighted the causal relationship between the exposure to extremely low frequency (ELF) magnetic fields and and increased risk of leukaemia in children living near high voltage power lines.
More recently, in 1993, three projects carried out by Feychting, Ahlbom, Verkasalo, Olsen etal. in Sweden, Finland and Denmark confirmed what previous studies had spotted, namely the increased risk to contract leukaemia and brain cancer for children living in residences exposed to levels of induction higher than 0.2 and 0.4 μT.
Nevertheless there are slightly different views about the relation between children exposure to low frequency magnetic fields and the possibility of contracting leukaemia “If the association between magnetic fields and childhood leukaemia is causal, the number of cases worldwide that might be attributable to magnetic field exposure is estimated to range from 100 to 2400 cases per year, based on values for the year 2000, representing 0.2 to 4.95% of the total incidence for that year.
Thus, if ELF magnetic fields actually do increase the risk of the disease, when considered in a global context, the impact on public health of ELF EMF exposure would be limited.” (WHO, World healthorganization, 2007).
W hat is the opinion of IARC (International Agency for Research on Cancer) on the causal relationship between children exposure to low frequency magnetic fields and the possibility to contract Leukaemia?
In 2001 IARC (International Agency for Research on Cancer), which is part of the WHO (World Health Organization) added low frequency magnetic fields in its lists of human carcinogens. Magnetic induction was thus included in group 2B (possibly carcinogenic to humans), considering
the risk doubled when dealing with exposure to values of induction higher than 0.4 μT.
W hat is the opinion of WHO (World Health Organization) on the causal relationship between children exposure to low frequency magnetic fields and the possibility to contract leukaemia?
WHO opinion, expressed during a conference in 2000 is that, although there is still no convincing evidence that the exposure to low frequency magnetic causes damages to DNA (blood) thus starting carcinogenesis (the process which turns normal cells into cancer cells), it may be appropriate to apply rigorous precautions and to adopt always safety measures.
D oes low frequency magnetic induction affect DNA?
A study recently published on “La medicina biologica” (n.4, 2010) quotes a research on the induction of electromagnetic waves in water conducted by the French biologist and virologist Luc Montagnier. It was discovered that the water molecules forming DNA can propagate low frequency magnetic waves commonly occurring in nature (7 Hz). As a result, those molecules can transmit and carry DNA genetic information thanks to electromagnetic resonance.
A re there any possible harmful effects on the health of people exposed to low frequency magnetic fields due to professional reasons?
In 1994 the Canadian researcher Gilles Thèriault noted an increased risk of leukaemia in people working for three electric companies with an average exposure to levels of magnetic induction higher than 2 μT. There are several epidemiological investigations focusing on people exposed to magnetic induction due to professional reasons. Although there is a common understanding of the fact that being exposed to high levels of low frequency magnetic induction (such as electricity power station workers, electricians, welders etc.) causes a major risk of contracting cancer, the kinds of cancer
varies from one study to another.