Thousands of rounds of tear gas have been fired since the protest crisis broke out in June, leading to health concerns. Photo: K.Y. Cheng

Tear gas fired at Hong Kong protests has not affected water and air quality, says health minister responding to exposure fears

  • Sophia Chan says ‘no irregularities’ in environmental indexes after about 5,000 canisters fired in the city since June
  • City professors warn chemical agent can linger for long periods, criticise ‘absence’ of government monitoring, decontamination and advice
Topic |   Hong Kong protests

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Thousands of rounds of tear gas have been fired since the protest crisis broke out in June, leading to health concerns. Photo: K.Y. Cheng
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