Why diesel vehicles are more harmful

London: Researchers have shown how exhaust pollution from diesel engines affects nerves within the lung. Identifying potential mechanisms linking exposure to diesel exhaust and the exacerbation of respiratory diseases may lead to treatments for those affected. Diesel exhaust is a significant component of urban air pollution, containing a complicated mixture of gases and airborne particles. The lungs contain numerous sensory nerves that can detect potentially harmful stimuli and thus allow the body to respond, for example by triggering a cough.