Aerosol Sci. & Technol.

Exposure to pollutants in urban environments depends strongly on time and location. Pollutant concentrations result from the complex interplay of variable emissions sources, highly variable atmospheric stability and mixing, and features of the built environment, such as building heights and spacing. Using fast time-response instruments and innovative sampling designs, we probe features of urban environments that control pollutant concentrations in the real world. Using various statistical and analytical models, we strive to push the underlying science forward and inform policies surrounding the design of a healthy built environment. Photo credit: California ARB