Effects of Urban Ventilation Patterns on the Carbon Monoxide Concentration in a High-Rise Mega City

Carbon monoxide (CO) concentration data from 1999-2006, monitored at 5 different pollution stations in a high-rise mega city (Hong Kong), were collected and investigated. The spatio-temporal characteristics of urban CO concentration profiles were obtained. A new approach was put forward to examine the relationship between urban CO concentration and different wind flow patterns.