Epidemiological principles for EMF and EMR studies - Lincoln ...

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exposures to have no exceedences of the desired target level. When the 0
exceedences level has been set then further reductions should be sought to
progressively reduce the rates of the adverse health effects. Where the exposures
are lower than the chosen target level then they should be maintained, and where
the community desires, reduced towards the good (33%) or excellent level, 10% of
the target standard.
Table 10: Environmental Performance Indicators Programme air quality
categories, Ministry for the Environment.
Category Measured value Comment
Action Exceeds the guideline Exceedences of the guideline
value are a cause for concern and
warrant action if they occur on a
regular basis.
Alert Between 66% and 100% This is a warning level, which
of the guideline value can lead to exceedences if
trends are not curbed.
Acceptable Between 33% and 66% of This is a broad category, where
the guideline value maximum values might be of
concern in some sensitive
locations, but are generally at a
level that does not warrant
dramatic action.
Good Between 10% and 33% of Peak measurements in this
the guideline value range are unlikely to affect air
quality.
Excellent Less than 10% of the Of little concern: if maximum
guideline value values are less than a 10th of
the guideline, average values
are likely to be much less.
There is strong and robust evidence that there is a causal relationship between
chronic exposure to electromagnetic fields and radiation of human populations and
elevated rates of serious health effects, because they are genotoxic. This requires
major reductions in the allowable public and occupational health protection
exposure standards. Their levels should be set at such values that chronic
exposure does not result in detectable elevation of cancer, cardiac, reproductive
and neurological health effects, once the ubiquitous exposures have been reduced.
For residential ELF exposures in the community, a desirable and achievable
Standard level is 1mG (0.1µT), with a Good level of 0.33mG and an Excellent level
of 0.1mG.