Environmentalists closely monitor the Costa Concordia as it prepares to be towed away.<br/> <br />The cruise liner sank off the Italian coast two-and-a-half years ago.<br/> <br />It is still filled with all the products that would have been aboard at the time of sailing.<br/> <br />Environmental agencies have been worried that petrol and cleaning products could leak into the sea.<br/> <br />But head of monitoring for the environmental group Arpat says, so far, there has been no seepage.<br/> <br />(SOUNDBITE) (Italian) OFFICIAL HEADING CONCORDIA MONITORING FOR REGIONAL ENVIRONMENT PROTECTION AGENCY ARPAT, MARCELLO MOSSA VERRE, SAYING:<br/> <br />"There may be a problem if one of the containers holding materials breaks and it seeps through for some reason. But seeing the way the operation has been carried out I don't foresee any problems."<br/> <br />Engineers at a news conference Tuesday confirmed that everything was going according to plan.<br/> <br />But environmentalists will continue to monitor the ship throughout its fi
