Lead
Lead in petrol removed only after campaign - Des Wilson
Two former workers say they were exposed to lead when working at Marsden Point Oil Refinery. Lead-free petrol campaigner Des Wilson talks to John Campbell about how he helped get it banned. Video, Audio
Toxic sludge may have been dumped at Marsden Point
Petrol sludge, containing the highly toxic alkyl-leads later banned from petrol in New Zealand, may have been dumped near the coast at Marsden Point. Audio
High lead levels lowered IQ of New Zealand kids - study
High lead levels in the 70s and 80s in New Zealand are to blame for lowering the IQ of some people, according to new findings from the long-running Dunedin Study. Video, Audio
Lead and the IQ connection
Mark Taylor of Sydney's Macquarie University discusses the recent Dunedin report and his own research into what lead exposure does. Audio
Lead Exposure Linked To Lower IQ
The latest research from the University of Otago's Dunedin Study, shows children's exposure to lead is linked to lower IQ. Audio
Lead exposure in 1970s and 80s leads to lower IQ - study
New research by the Dunedin Study has found a small but significant drop in the IQ levels of children exposed to high levels of lead in petrol in the 1970s and 80s. Audio
Report: Children exposed to leaded petrol suffer drop in IQ
The findings from the long-standing Dunedin Study suggest children exposed to high levels of lead in petrol ended up getting lower skilled jobs as a result. Our health correspondent Karen Brown… Audio
Vincent Covello: risk, crisis and communication
Kim Hill talks to Dr Vincent Covello, founder and director of the Center for Risk Communication in New York, who has worked as a researcher, teacher and consultant advising over 500 government… Audio
