Walking or cycling around London can feel like a health hazard. Roads are engulfed in dangerous levels of exhaust fumes and pollutants. How does the London Undergorund compare?
Around 4.8m daily commuters use the London Underground every day. According to the latest research published by the Financial Times levels of pollution inside the underground are extremely high. At times as much as 10 times higher than the guidelines set by WHO. The investigation was conducted at over 75 locations across the tunnel segments inside Zone 1, central London.
The analysis revealed that the Central line is the most polluted, while Northern and Victoria lines are also high risk.
The network has an abundant level of PM 2.5 particles. These atmospheric particles are one-thirtieth of the thickness of the human hair. These fine particles, which could come from various sources including motor vehicles emissions, agricultural burning and power plant emissions last longer in the air...