Levels of dioxin contamination Ireland fell by 20% between 2000 and 2004, the country's environment protection agency has revealed. Cleaner combustion technologies and the ban of leaded petrol are believed to be key factors behind the decline, which continues a long-term trend. Even the highest levels found were less than one sixth of the EU limit. Most Irish dioxin emissions in Ireland now come from uncontrolled burning such as bonfires. The data are based on sampling cows' milk, which provides the best and easiest measure of environmental levels, the agency said. See press release.
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