Air travel exposes passengers to hidden pollution: Study
As we soar through the skies, taking in the breathtaking views of the earth below, it’s easy to forget about the potential health risks associated with air travel. However, a recent study has shed light on a disturbing reality: air travellers are exposed to unexpectedly high levels of ultrafine particles and black carbon during their journeys. The study, which measured pollution levels on 16 European flights, found that passengers are subjected to spikes in pollution during boarding, taxiing, and descent, with levels easing off at cruising altitude only to rise again on landing.
The study’s findings are alarming, to say the least. Ultrafine particles, which are smaller than 0.1 micrometres in diameter, are known to be particularly hazardous to human health. They can penetrate deep into the lungs, causing inflammation and damage to the respiratory system. Black carbon, on the other hand, is a potent pollutant that can exacerbate respiratory problems such as asthma and chronic obstructive pulmonary disease (COPD). The fact that air travellers are exposed to high levels of these pollutants during their flights is a cause for concern, particularly for those who travel frequently.
But the impact of air travel pollution doesn’t stop at the airport gates. The study found that the particles emitted by aircraft can spread kilometres beyond airports, affecting nearby neighbourhoods and communities. In fact, the pollution levels in these areas can be comparable to those found in busy urban roads, posing a significant health risk to residents. This is particularly worrying, as many airports are located near densely populated areas, putting thousands of people at risk of exposure to these harmful pollutants.
So, what exactly is causing these high levels of pollution? The answer lies in the way aircraft engines operate. During boarding, taxiing, and descent, aircraft engines are typically running at lower altitudes and higher thrust settings, which leads to increased emissions of ultrafine particles and black carbon. Additionally, the use of fossil fuels in aircraft engines is a major contributor to air pollution, with the production of particulate matter, nitrogen oxides, and other pollutants being a byproduct of combustion.
The study’s findings have significant implications for the aviation industry, which is already under pressure to reduce its environmental impact. As air travel continues to grow in popularity, it’s essential that airlines and airports take steps to mitigate the effects of pollution on passengers and nearby communities. This could include the development of more efficient engines, the use of alternative fuels, and the implementation of stricter emissions controls.
For passengers, there are also steps that can be taken to minimize exposure to pollution during flights. Choosing seats farther away from the engines, using air purifiers, and avoiding travel during peak pollution hours can all help to reduce exposure to ultrafine particles and black carbon. Additionally, airlines can take steps to improve ventilation and air filtration systems on board, which can help to reduce the concentration of pollutants in the cabin.
In conclusion, the study’s findings are a wake-up call for the aviation industry and air travellers alike. The hidden pollution associated with air travel is a significant health risk that cannot be ignored. As we continue to take to the skies, it’s essential that we take steps to mitigate the effects of pollution on our health and the environment. Whether it’s through the development of more efficient engines, the use of alternative fuels, or the implementation of stricter emissions controls, it’s time for the aviation industry to take responsibility for its impact on the environment and public health.
About the Author
