Bangkok cracks down on laughing-gas balloons

BANGKOK - The widespread use of illegal balloons containing laughing gas among tourists at entertainment venues has prompted police in Bangkok's Chanasongkram Police Station to crack down on vendors selling these balloons on Khao San Road.

Sale of balloons filled with nitrous oxide gas, also known as laughing gas, is illegal. However, vendors on khao san Road - Bangkok's famous tourist street - are still selling this balloon...

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