Thermal and non-thermal effects
Levels of thermal effects and levels of non-thermal effects
It is interesting to show at what level are the allowable levels of thermal effects of electromagnetic radiation, in relation to the reference scientific levels possible non-thermal influence on the human organism.
The most restrictive limit of most of the international law to carefully thermal effects, is 2 W/m2 (two watts per square meter).
But, those measurements compared with levels of caution today established by fôro scientific and medical entities for non-thermal effects, lead to a result which interprets differently, not comfortable, but worrisome.
And the calculations are as follows, converting the microwatts/m2, in work on the analysis of non-thermal effects:
Official reference level = 2 Watts/m2 = 2,000 milliwatts/m2 =
= 2,000,000 microwatts/m2
Let's now compare that level of 2,000,000 microwatts/m2 with the level recommended by the study, which we present on another page of our website, carried out by the "STOA" (Scientific and Technological Options Assessment), body of the "Directorate General for Research" of the European Parliament, presented in March 2001:
In this study the "STOA", the recommendation of the level to protect against non-thermal effects potentially harmful to health, is of 10 nanowatts/cm2.
Converting to the same unit, we have:
10 nanowattts/cm2 = 0.01 microwatts/cm2 =
= 100 microwatts/m2 note (1 m2 equals 10,000 cm2, 0, 01 x 10,000 soon = 100)
Comparing:
- Official level to evaluate possible thermal effects =
= 2,000,000 microwatts/m2
- Level suggested by the STOA to avoid possible non-thermal effects =
= 100 microwatts/m2
So, the reality is 20,000 times of biological non-thermal levels.
Please note that the 100 microwatts/m2, singled out by the STOA, in 2001, were being reviewed and altered by scientists and doctors, as for example those who have signed the London Resolution, "in 2007, and they point to a level on the outside of 10 microwatts/m2.