Radio New Zealand, October 24, 2006
The Ministry of Health is to look into claims that significant mistakes were made in a study of dioxin contamination in New Plymouth.
From 1962 to 1987 the Ivon Watkins Dow factory made the herbicide 245T, which contained a dioxin.
Last year a Ministry of Health report said people who had lived near the plant, had higher than average levels of the dioxin in their blood.
But a forensic accountant hired by TV3 to review the report says mixed-up data obscures a peak of dioxin contamination before 1974, which was never corrected in the report.