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 feel a sense of detachment from the environmental concerns that plague our daily lives. However, a recent study has revealed that air travel exposes passengers to unexpectedly high levels of ultrafine particles and black carbon, pollutants that can have serious health implications. The study, which measured pollution levels on 16 European flights, found that passengers are exposed to spikes in pollution during boarding, taxiing, and descent, with levels easing at cruising altitude but rising again on landing.
The research, which aimed to investigate the levels of air pollution on commercial flights, used specialized equipment to measure the concentrations of ultrafine particles and black carbon on board the aircraft. Ultrafine particles, which are smaller than 0.1 micrometers in diameter, are particularly concerning as they can penetrate deep into the lungs and even enter the bloodstream, causing inflammation and damage to the cardiovascular system. Black carbon, on the other hand, is a potent climate pollutant that is formed through the incomplete combustion of fossil fuels.
The study found that pollution levels on board the aircraft were highest during the boarding process, when passengers are exposed to high levels of ultrafine particles and black carbon from the plane’s auxiliary power unit (APU) and the jet engines. The APU, which provides power to the aircraft when the engines are not running, is a significant source of pollution, as it burns fuel to generate electricity and power the aircraft’s systems. The jet engines, which are used for propulsion, also emit high levels of pollutants, particularly during the taxiing and takeoff phases.
As the aircraft takes off and begins to climb, pollution levels on board decrease, only to rise again during descent and landing. This is due to the increased fuel burn during these phases, as well as the aircraft’s proximity to the ground, which allows pollutants to accumulate in the air. The study found that pollution levels on board the aircraft were similar to those found in urban areas with heavy traffic, highlighting the significant impact that air travel can have on air quality.
But the impact of air travel on air quality doesn’t stop at the airport. The study found that the pollutants emitted by aircraft can spread kilometers beyond the airport, affecting nearby neighborhoods and communities. This is particularly concerning, as it means that people who live and work near airports are exposed to high levels of air pollution, even if they don’t fly themselves. The study’s findings suggest that the air pollution emitted by aircraft is similar to that emitted by busy urban roads, with high levels of ultrafine particles and black carbon contributing to poor air quality.
The implications of this study are significant, highlighting the need for the aviation industry to take steps to reduce its environmental impact. This could include the use of cleaner fuels, more efficient engines, and optimized flight routes that minimize fuel burn and reduce pollution. Airlines could also take steps to reduce pollution on the ground, such as using electric or hybrid ground support equipment, and implementing more efficient boarding and taxiing procedures.
For passengers, the study’s findings are a reminder to take steps to minimize their exposure to air pollution when flying. This could include wearing a mask during boarding and taxiing, and choosing seats that are farther away from the engines and APU. Passengers can also support airlines that prioritize sustainability and environmental responsibility, and advocate for policies that promote cleaner air travel.
In conclusion, the study’s findings highlight the hidden pollution that air travel exposes passengers to, and the need for the aviation industry to take action to reduce its environmental impact. As we continue to rely on air travel for business and leisure, it’s essential that we prioritize sustainability and take steps to minimize our exposure to air pollution. By working together, we can create a cleaner, healthier, and more sustainable aviation industry for all.
News source: https://www.newsbytesapp.com/news/science/air-travel-exposes-passengers-and-neighbors-to-hidden-pollution/tldr
About the Author
