Research Reports

Research Report 198 describes a study by Dr. Jason Surratt and his colleagues evaluating the toxicity of fine particulate matter formed from the photochemical oxidation of isoprene in a chamber.

Research Report 199 describes a study led by Dr. Xiaoliang Wang evaluating how mobile-source emissions have changed by examining real-world emissions characterization in two traffic tunnels: the Shing Mun Tunnel in Hong Kong and the Fort McHenry Tunnel in Baltimore, Maryland.

Research Report 195 describes a study led by Ted Russell at the Georgia Institute of Technology as part of HEI’s Accountability Research Program. Dr. Russell and colleagues examined the extent to which regulations targeting power plants and mobile sources in the Atlanta area were effective in improving air quality and ultimately reducing cardiorespiratory emergency department visits.

Research Report 193 describes a novel study by Jiu-Chiuan Chen and colleagues examining possible associations between long-term exposure to ambient particulate matter (PM) and changes in the brains of older women in the United States. The study focused on brain volumes and neurocognitive outcomes, specifically mild cognitive impairment and dementia. Dr. Chen used neuroimaging and cognitive outcome data from women enrolled in the Women’s Health Initiative Memory Study and estimated their exposure to ambient PM_2.5 and to diesel PM.