 According to, Dr Warwick Raverty, a chemist with over 20 years experience in the Kraft pulping and paper, a hiccup with a waterspray within an "integrated" process could cause the bleaching chemical chlorine dioxide to be contaminated with elemental chlorine.Elemental chlorine contamination of the chlorine dioxide bleaching chemical could in turn lead to the release of persistent organic pollutants (dioxins), potentially causing environmental harm and a subsequent breach of the Stockholm Convention.The "integrated" design for chlorine dioxide generation was not selected by Gunns to proceed as it was effectively prevented from implementation by the State Permit (Condition 3GN9.1).