National Pollutant Inventory – Oxide of nitrogen fact sheet National Institute for Occupational Safety and Health – Nitrous Oxide CDC – NIOSH Pocket Guide to Chemical Hazards – Nitrous Oxide Nitrous Oxide FAQ Erowid article on Nitrous Oxide Nitrous oxide fingered as monster ozone slayer, Science News Dental Fear Central article on the use of nitrous oxide in dentistry Altered States Database 5-HT3 antagonists Aerosol propellants Dissociative drugs E-number additives Euphoriants GABAA receptor positive allosteric modulators Gaseous signaling molecules General anesthetics Glycine receptor agonists Greenhouse gases Industrial gases Industrial hygiene Inhalants Nitrogen oxides Monopropellants Nicotinic antagonists Nitrogen cycle NMDA receptor antagonists Rocket oxidizers Trace gases World Health Organization essential medicines Neurotoxins