Ian Shaw

Blood tests have found unsafe levels of lead in some East Otago residents - including a number of children.

Almost 1,400 residents in and around Waikouaiti, Karitane and Hawksbury Village have been… Audio

There's doubt over whether Dunedin councillors will front up to a public meeting in Waikouaiti tonight, which is being held to disuss high levels of lead in the local water supply.

One test showed… Audio

A toxicologist says the public should've been told immediately about the high levels of lead in the water in the Otago towns of Karitane and Waikouaiti.

The acceptable level of lead in New Zealand is… Audio

Charcoal is credited with getting rid of gas, bloating, hangovers and generally helping us cleanse and detox. Healthy or Hoax finds out if the claims are backed up by science. Audio

Taps that leach dangerous levels of lead into drinking water have been identified in laboratory testing. The Master Plumbers industry group ordered the tests which it says show the dangers of New… Audio

Professor of Toxicology, Ian Shaw says 1080 doesn't cause cancer and explains the effects of 1080 on humans. Audio

Greens powders are firmly entrenched as part of the smoothie craze, but in episode three of Healthy or Hoax we find out there's one ingredient in there you might not expect. Audio

Acrylamide's a chemical produced when starchy foods are cooked at high temperatures, so we ingest low doses of it in things like chips, toast, cereal and instant coffee. It's been in the news in… Audio

New Zealand's about to change the law so people can legally buy e-cigarettes containing nicotine here. This Way Up reviews the current state of our knowledge about the safety of the vaping and the… Audio, Gallery

Toxicologist Ian Shaw's been weighing up the latest evidence about the dangers of formaldehyde, and how to minimise your exposure. Audio