Leaded Petrol
High lead levels lowered IQ of New Zealand kids - study
29 Mar 2017
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
Children's exposure to lead linked to intelligence, lower job prospects
29 Mar 2017
High lead levels, mainly from exhaust fumes, in New Zealand cities during the 1970s and 1980s appear to have led to a loss of intelligence in adults, researchers say. Audio