Toxicologist Leo Schep from Toxiform joins us once again to discuss the toxicity of the tear gas (o-chlorobenzylidene malononitrile -commonly known as CS) used in recent hot spots including Hong Kong.
Police fire tear gas during a protest at Hung Hom area in Hong Kong on December 1, 2019.
Photo: Photo by Philip FONG / AFP
To embed this content on your own webpage, cut and paste the following:
<iframe src="https://www.rnz.co.nz/audio/remote-player?id=2018725265" width="100%" frameborder="0" height="62px"></iframe>
for easy access to all your favourite programmes