Is Nitrogen Dioxide in Your Home Giving You a Headache?
Nitrogen dioxide is a naturally occurring gas which in high quantities becomes a pollutant – and it might be giving you a headache.
Nitrogen dioxide, or NO2, may be produced from burning wood, and even lightening strikes. In small quantities, it’s not a concern – but in larger quantities in a small area, it becomes a pollutant. But more to the point, busy traffic can produce a lot of it, and even a fireplace or a gas stove in your home might be a culprit.
A recent study presented at the American Academy of Neurology annual meeting investigated the link between NO2 and migraine attacks in particular. They found that as NO2 in the air increased, so did migraine attacks. There was also an increase in people heading to urgent care or the emergency department because of a migraine attack.
Fine particle matter pollutants were also related to migraine urgent care visits.
(Read the study here: Air pollution, methane super-emitters, and oil and gas wells in Northern California: the relationship with migraine headache prevalence and exacerbation)
Trapping a lot of NO2 in a small space is a problem, and many of us spend a lot of time in a small space, such as a home or office. That means that we need to be thinking about ventilation, and sources of NO2 and other pollutants.
Traffic is a common issue, so if you live near a busy street, levels may already be high. What you can control is the idling of your own car in the garage.
Another issue is cigarette smoke, so any way that can be cut back will be a help.
More common issues would be things that “burn” – in particular, gas or wood stoves and fireplaces. These don’t have to be a problem if they are in good repair and properly ventilated. You might want to consider a hood over the stove, especially if you can’t open windows while you cook.
Opening doors and windows can be a help, but so can an air purifier with an activated carbon filter. Even these vary quite a bit, so you’re not going to want to simply rely on an inexpensive filter if you have a lot of NO2 in your house (for example, if you live by the highway with a smoker!). But they can help with both NO2 and other polluting particles that might increase your changes of migraine attacks.
Interestingly, lightening can indeed make a significant difference, depending on where you are. Check out Lightning’s ‘NOx-ious’ Impact On Pollution, Climate, and more migraine-specific Lightning and Migraine: More than just a Flash of Light and Asthma, Lightning, and Migraine (podcast). Also see Nitrogen Dioxide from the American Lung Association.