1.   Bioremediation appears to be a very attractive, and in many cases a cost-effective way of cleaning up many contaminated sites.

2.   He foresees truck-mounted accelerator X-ray units being driven to contaminated sites.

3.   Most of the debate about cleaning contaminated sites has concentrated on the Superfund programme.

4.   Environmental groups have been reclaiming contaminated sites.

5.   Under pressure from property developers, local authorities and site owners, however, the government has now proposed that only the most contaminated sites would be registered.

6.   It would have obliged local authorities to draw up a register of contaminated sites in their area, and supervise their clean-up.

7.   And distrust of government reassurances and a lack of perspective about radiation cause many people to fear the worst when contaminated sites catch fire.

8.   Another issue of contention is who is responsible for cleaning up contaminated sites.

9.   And within the Department of Defense, the amount needed to restore contaminated sites is being underreported, according to several audits.