Air travel exposes passengers to hidden pollution: Study
As we soar through the skies, taking in the breathtaking views of the earth below, we often don’t think about the potential health risks associated with air travel. However, a recent study has revealed that air travellers are exposed to unexpectedly high levels of ultrafine particles and black carbon, which can have serious implications for our health. The study, which measured pollution levels on 16 European flights, found that passengers are exposed to hidden pollution during various stages of their journey, including boarding, taxiing, and descent.
The study’s findings are alarming, to say the least. According to the research, pollution levels spike during the boarding process, when passengers are walking to the aircraft or waiting in the jetway. This is likely due to the proximity to the aircraft’s engines, which emit high levels of ultrafine particles and black carbon. These pollutants can easily penetrate the aircraft’s cabin, exposing passengers to potentially hazardous levels of air pollution.
As the aircraft taxis down the runway, pollution levels remain high, posing a significant risk to passengers’ health. The taxiing process involves the aircraft’s engines running at high power, which releases large amounts of pollutants into the air. These pollutants can then enter the cabin through the air ventilation system, further increasing the exposure risk for passengers.
During the descent phase of the flight, pollution levels once again spike, posing a significant risk to passengers’ health. This is likely due to the aircraft’s engines running at high power as it prepares to land, releasing large amounts of pollutants into the air. The study found that pollution levels during descent were often higher than those experienced during taxiing, highlighting the need for airlines to take steps to reduce emissions during this critical phase of the flight.
However, it’s not all bad news. The study found that pollution levels ease significantly at cruising altitude, when the aircraft is flying at a steady height and speed. This is likely due to the reduced engine power required to maintain altitude, which results in lower emissions. Nevertheless, the study’s findings highlight the need for airlines to take steps to reduce emissions throughout the entire flight, not just at cruising altitude.
But the impact of air travel on pollution levels doesn’t stop at the airport. The study found that the particles emitted by aircraft can spread kilometres beyond airports, affecting nearby neighbourhoods much like busy urban roads. This is a significant concern, as it highlights the broader impact of air travel on local air quality. The study’s findings suggest that airports are not just point sources of pollution, but rather, they are part of a larger network of emissions that can affect entire communities.
So, what can be done to mitigate the risks associated with air travel pollution? The study’s authors suggest that airlines can take steps to reduce emissions, such as using more efficient engines, optimizing flight routes, and implementing emission-reducing technologies. Additionally, airports can implement measures to reduce ground-level emissions, such as using electric or hybrid vehicles for ground transportation.
Passengers can also take steps to reduce their exposure to air pollution during flights. For example, they can choose seats that are farther away from the engines, which tend to be located at the rear of the aircraft. They can also consider wearing masks or using air purifiers to reduce their exposure to pollutants.
In conclusion, the study’s findings highlight the need for greater awareness about the risks associated with air travel pollution. As we continue to fly more frequently, it’s essential that we take steps to reduce our exposure to pollutants and mitigate the broader impact of air travel on local air quality. By working together, we can create a healthier and more sustainable air travel industry that benefits both passengers and the environment.
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