Researchers say police should not be using tear gas or pepper spray against protesters: They make people cough droplets and damage the airways in ways that will make people sicker from COVID-19.
In nationwide demonstrations against the police killing of George Floyd and other black Americans, protesters are frequently pepper-sprayed or enveloped in clouds of tear gas. These crowd control weapons are generally not lethal. But in the middle of the coronavirus pandemic, there are growing calls for police to stop using them. Will Stone explains how these chemical irritants damage the body in ways that can make COVID-19 worse.
STONE: When it comes to chemical irritants, police generally use two different kinds. First, pepper spray - the active agent is capsaicin, which is derived from chilies. Police spray it from cans or sometimes lob it into crowds. The other is CS gas, a chlorinated organic chemical. Cartridges are fired into crowds, producing plumes of whitish smoke. It hurts. And Jordt says it's a corrosive chemical.
JOHN BALMES: So these exposures, the tear gas would increase the risk of progression from asymptomatic infection to symptomatic disease.BALMES: It causes injury and inflammation to the lining of the airways. And it gets red, literally. I actually think we could be promoting COVID-19 by tear-gassing protesters who are already congregating and putting themselves at risk for infection.
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