Running in Bad Air Quality and Smoke

Running in Bad Air Quality and Smoke

Can I run in the smoky air? How are you dealing with running in smog? What are my options for running in bad air quality?

These are the questions filling my inbox lately, as I show photos of the brown sky and obscured mountains due to smoke filled skies from wildfires. Since those questions were on my mind too, it was time to dive in to the research once again.

Can I Run in Bad Air Quality?

In 2018, race directors made the call to cancel the North Face Endurance Challenge 50 Miler due to poor air quality from nearby wildfires. With an Air Quality Index (AQI) of 200, considered “very unhealthy,” they made the right call.

Yet, what about folks who live in China and deal with poor air quality year round for running…

You may not remember, but in 2008 Haile Gebrselassie opted out of the Beijing Olympics due to the air quality because he is a runner who also suffers from asthma attacks.

And our poor air quality can exists just from running next to a busy road, so don’t think this applies just to times of wildfires.Running in Bad Air Quality

Short Term Issues from running poor air quality:

  • Mid-run shortness of breath or chest tightness
  • Scratchy throat
  • Hit to the immune system
  • Less oxygen available to support your muscles as the body is dealing with higher CO2 levels

Is it bad to run in smoke?

Running in smoke-filled air can cause itchy eyes, a burning throat, and make it difficult to breathe.

Since the uptick in wildfires, there have been more studies on the health effects of wildfire smoke, however, the results are inconclusive as to whether you need to skip your runs, due to the number of variables and the lack of long term studies.

A June 2016 study by Preventive Medicine conducted a study to determine the risk-benefit of continuing to exercise outdoors in poor air quality conditions.

  • The researchers studied walking and cycling and concluded that the benefits of physical activity in polluted air outweigh the health risks associated with air pollution.
  • The study showed that even in areas with a concentration of PM2.5 of 100, which is considered “unhealthy for sensitive groups,” see benefits as long as they do not exceed 1h15m hours of cycling and 10h30m of walking daily in concentrations of PM2.5 of 100.
  • Runners are inhaling even more of that particulate matter and thus need to shorten their sessions even more.
  • Take longer workouts to the treadmill for optimal health.
  • Use outside runs in poor air for short and intense days.

In general, the longer the exposure, the greater the risk. Dr. Michael Koehle, a respiratory physiologist at the University of British Columbia in Vancouver says that athletes can continue to get outside, as long as they are not experiencing any symptoms.

One of the main issues with running long term in poor air quality is how the body needs to process the heavy metals and carcinogens from the air. And this is where thinking about not just today’s run, but your long term running can help you make a choice.

Is the Smoke From a Fire Bad for You?

Smoke is made up of a mixture of gases and fine particles produced when wood and other organic matter burns, creating fine particulate matter with diameters less than 2.5 micrometers (PM2.5).

These microscopic particles can become embedded in the lungs, and even bloodstream, which can cause inflammation and circulatory problems.running in smoke

Regular exposure to these tiny particles can cause health problems, like:

  • Chronic heart and lung disease
  • Runny nose
  • Burning eyes
  • Bronchitis
  • Early death with regular exposure

According to a Denver Post interview with Dr. Anthony Gerber, a pulmonologist at National Jewish Health, healthy people who fall within the 12-70 age range and who have no underlying health conditions may continue to enjoy outdoor activities.

A 2012 study published in the New England Journal of Medicine reported that daily bike trips in polluted cities could reduce a person’s life span by 40 days, however, the act of daily exercise lengthened their life by 14 months.

So…ya…it’s a toss up.

How to Run Outside When Air Quality is Bad?

What’s a runner to do when the skies are coated in a thick apocalyptic haze?

  • Start by checking AirNow every time you head out for a run, you might find that nearby the air is better simply due to winds or where it’s settling.
  • Avoid running next to busy roads as much as you can.
  • Summer air is often worse, so try going as early as possible.
  • Try running more trails which are away from the city air.
  • Keep your runs short, under an hour.
  • Listen to your body. If you feel sore, have a cough, congestion, or other respiratory symptoms, stay indoors to work out until the smoke clears.
  • Stick to treadmill workouts, they can be fun, I promise. Try one of these:
  • Wear an N95 filter if you must run outdoors for long periods of time

Who Should Not Run on a Bad Air Day?

You might notice most air quality sites say things like “unhealthy for sensitive groups”, but what does that mean?

  • Those with existing lung and heart conditions, including heart failure, angina, emphysema, and asthma
  • Young children are at risk because their respiratory system is still developing
  • Diabetics, who are more likely to have undiagnosed cardiovascular disease
  • Masters runners, who may be more susceptible to lung and heart diseases
  • Pregnant runners are vulnerable to health effects for both themselves and the fetus
running in smog

A jogger goes for a run amid heavy smog in Shanghai on Wednesday. China has for the first time agreed to limit its carbon emissions, but critics are questioning whether the move goes far enough.

Reading Air Quality Reports for Your Area

If you’re like me, I had no idea what all the numbers about particulates and such meant when these fires started!

The EPA converts air pollutants like PM2.5 into an Air Quality Index (AQI) as a way of communicating daily air quality reporting to the general public.

The AQI reports includes five major pollutants found in the air that are regulated by the Clean Air Act:

  • Ozone
  • Particulate matter
  • Carbon monoxide
  • Nitrogen dioxide
  • Sulfur dioxide

The higher the AQI value, the more pollution in the air and therefore the higher the health concern. Here’s a quick breakdown of the different levels:

  • An AQI of 50 or below generally signifies good air quality
  • Levels above 100 mean at-risk groups may experience sensitivities
  • Between 150 and 200, members of the general public may experience health effects
  • Over 200 is a hazard for everyone, including healthy people

To put it in perspective, the 10 most polluted cities in the world in 2019 (all of which are in India, Pakistan, and China) averaged AQI above 90, some soaring above 200 during the worst months.

Keep in mind that you need to protect your indoor air quality as well. If you have air conditioning, run it instead of opening the windows. If you don’t, keep one room of the house “clean” by keeping the window shut and running an air filter so you can take some clean air breaks throughout the day.

Have you run in poor air quality before?

How do you modify your runs to accommodate poor air quality?

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1 Comment

  1. maurizio sarri
    September 6, 2020 at 7:39 pm

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