JGI Geo-Services Ltd was commissioned to carry out a risk assessment for highways maintenance workers potential exposure to naturally enriched Arsenic within the Jurassic Marlstone Rock Bed on a development site in the east of England. Naturally enriched concentrations of Arsenic are a characteristic of a number of geological formations, of various ages, scattered throughout the United Kingdom. In this instance, the Arsenic concentrations were up to almost 200mg/kg, but concentrations of up to 1,500 mg /kg have been encountered in other parts of the UK. JGI Geo-Services Ltd has extensive experience of assessing the risks posed by such natural geochemical enrichment of Arsenic and indeed other metals, to encourage development on affected sites.
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