• 01 APR 15
    • 0

    ICNIRP continues with its Procrustean Approach…keep it on thermal effects only and ignore the rest

    The charade continues….

    Don
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    ICNIRP/WHO Workshop “A closer look at the thresholds of thermal damage”, 26-28 May 2015

    Scope

    In view of updating the guidance on limiting exposure to high frequency (HF) fields, ICNIRP will review the current scientific knowledge on the thresholds of thermal damage. The current workshop will revisit the ICNIRP 1998 concept, namely that the health relevant increase of body core temperature is approximately 1° C and a whole-body exposure with an average SAR of 4 W/kg result in a core temperature increase of less than 1°C within 30 min. Details of this concept as well as thresholds for partial/local body exposures are subjects to review.
    Amongst others, the following topics and questions will be addressed:
    Definition/Specification of the threshold for thermal damage:
    a) with respect to
    – the whole body,
    – parts of the body (limbs, trunk, head),
    – different organs (i.e. brain, eye, testis, skin etc.)
    – different tissues (muscle, fat, nerve, connective tissue)
    b) regarding frequency dependence
    c) with respect to external conditions (cold and hot environment, humidity, clothing)
    d) with respect to internal/individual conditions (interindividual variations, age-dependence, health status, metabolic status, medication, compromised thermoregulation, pregnancy,… )
    Main questions
    Definition/Specification of the health relevant quantity (SAR, power flux density, temperature, thermal dose/CEM43°C, Arrhenius thermal dose rate)
    Is our thermoregulation (evolved to respond to physical work and hot environments) effective in responding to local (internal) HF-induced heating?
    Is the averaging time of 6 min and the averaging mass of 10g of contiguous tissue appropriate?
    Has exposure duration to be taken into account (even at low exposure levels)?

    Program and registration
    The program and preliminary information are available at:
    http://www.icnirp.org/en/workshops/article/workshop-thermal-damage.html
    The registration procedure is now opened.

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