Comparing Air Quality Levels in Subways to Other Public Spaces
Introduction
Subways are a popular mode of transportation in most cities due to their convenience and speed. However, the air quality inside subways is often a cause for concern. The air is filled with pollutants and dust that can pose serious health risks to passengers.
The Problem
Studies have shown that the air inside subways is worse than the air outside. According to research conducted by the University of Surrey, the air inside the London Underground has 18 times more harmful particulate matter than the air outside. These pollutants can cause respiratory illnesses such as asthma and bronchitis.
Causes of Poor Air Quality
Subway air pollution is caused by several factors. One of the main sources is the train’s brakes and wheels. When trains stop, they release brake dust that contains various metals, such as copper and iron. The wheels also cause metal particles from the tracks to become airborne. Other factors include human activities such as sneezing, coughing, and talking, which release droplets into the air.
Solutions
There are several ways to improve subway air quality. One solution is to install air purifiers on the trains themselves. These devices can filter out small particles and improve the quality of the air inside the subway cars. Regular cleaning and maintenance of the subways can also help reduce the amount of dust and pollutants in the air. Additionally, a reduction in the use of fossil fuels for power generation can help decrease future pollution.
Conclusion
It is important to take steps to ensure that our subways are safe and clean places to travel. The drastic measures taken to help improve the air quality will only be effective if implemented correctly. By doing so, we can reduce the risk of respiratory diseases to passengers and make our cities healthier places to live.