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The use of non-invasive geophysical methods is attractive where contamination is near the ground surface, as they do not penetrate any capping, which minimises the release of gas or the ingress of surface water. In some cases, to find contaminated zones within old landfills and derelict sites, geophysical surveys are the only practical method of investigation.
9.1 INTRODUCTION
The market for environmental geophysics has developed later in the UK than in the USA. Consequently, lessons learnt in the USA can be applied in the UK as activity here increases. In the USA, client confidence improved when it was understood that the geophysical methods used for environmental surveys were initially developed for the mining and petroleum sectors, but it was also recognised that there are special problems in environmental geophysics that require the development of new methods. Two aspects of environmental geophysics practice in North America (Steeples and Nyqyist, 1995; Bates, 1992; Danbom, 1995; Whiteley, 1995; Romig, 1992) that have relevance to the UK are:
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This 250-word extract was created in the absence of an abstract.
