Nitrous oxide

Laughing gas ban to stop anti-social behaviour

Gas and air suspended over nitrous oxide levels

NHS staff exposed to 30 times legal gas limit

Safety of hydrogen home energy pilot questioned

Charity's events warn of laughing gas dangers

Gas and air pain relief reinstated at hospital

Gas and air pain relief suspended at hospital

MP wants stricter nitrous oxide controls

Netherlands to ban laughing gas from January

Hospital investigates nitrous oxide level breach

Laughing-gas makers call for retail sales ban

'I showed son's ashes to people using laughing gas'

'A 20-second high isn't worth losing your life over'

Man with 25,000 laughing gas canisters jailed

NHS worker struck off for inhaling laughing gas

Man arrested for inhaling laughing gas in car

Laughing gas review to decide on potential new law

Dumped nitrous oxide canisters to be recycled

Laughing gas 'can cause paralysis' says top doctor

Greenwood admits 'poor judgement'

MP proposes laughing gas sale restrictions

Police 'slow to react' to mass gathering

Arrests after 1,800 laughing gas canisters found