Contending discourses in the electric and magnetic fields controversy: The social construction of EMF risk as a public problem

The issue of adverse health effects from electric and magnetic fields (EMFs) has been brewing for the last decade or so. While the epidemiological evidence persists in linking proximity-to-powerlines to a few forms of cancer, exposure and dose remain undefined, and no clear mechanism of action has been identified. Despite this scientific ambiguity, there are frequent calls for governmental action; and yet, there is no unanimity on what action is appropriate, even among those asserting that something ought to be done. This article analyzes the various ways that the EMF problem has been socially constructed through distinctive forms of public discourse and the sources of contention among these different forms. It should appeal to interpretive policy analysts and to those interested in the valuative assumptions behind policy claims. Those oriented exclusively to the technical side of EMF may find the interpretation offered here somewhat unsettling, however, since it relativizes many of the factual claims surrounding the issue. Attention is also given to the ways that multiple EMF discourses are accommodated in the absence of scientifically conclusive evidence.