Details of Operation Cleansweep was released into the public realm to provide «reassurance» that residual contamination at UK sites did not pose a risk to human health or the environment. (newirishworks.com)
The Phase II / III report determined that removing all of the hazardous waste present on site was prohibitively costly and therefore residual contamination would remain on the property after remediation activities were completed. (massachusettslandusemonitor.com)
«Even if one assumes that leaks from the plant into the sea will eventually be stopped, residual contamination would continue to be present in the adjacent marine ecosystem for many years,» he says. (scientificamerican.com)