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The London Low Emission Zone Baseline Study

This report describes a study evaluating the feasibility of studying potential changes in air quality and health associated with the London Low Emission Zone (LEZ), which went into effect in 2008 and restricts entry of older, more polluting vehicles into Greater London. Based on their earlier study of London's Congestion Charging Scheme, Dr. Kelly and colleagues conducted emissions and exposure modeling to estimate the projected effects of LEZ implementation. They also assessed the feasibility of using medical records from private practices to evaluate the relationships between exposure to traffic and indicators of respiratory and cardiovascular disease.