Online tool shows City-by-City health impacts.

• Position: Air Pollution - Brief article

Approximately 9,320 deaths occur each year in metropolitan areas as a result of air pollution concentrations exceeding American Thoracic Society-recommended standards for particle pollution and ozone, maintains a report from New York University's Institute of Urban Management.

Higher-than-recommended concentrations of two major air pollutants--ambient ozone and fine particulate matter--also caused 21,400 major health events, or morbidities, and 19,300,000 impacted days, or days when an individual was kept from work, school, or other activities due to health exacerbations.

An online tool accompanies the study. Users can view the number of deaths, morbidities, and impacted...