by PE Padgett, PL Winter, LA Milburn, W Li

Gen. Tech. Rep. PSW-274. USDA Forest Service, Pacific Southwest Research Station, Albany, CA

Exposure to ozone pollution can cause adverse health consequences, especially among vulnerable populations. This technical report reviews three successive studies that led to the development of techniques for directly monitoring human exposure to Ozone. The first experiment, proof of concept, tested the technique to uncover systematic errors. The second experiment was a broader use of personal monitoring to evaluate differences in ozone exposure as a function of urban structure in “disadvantaged” and “affluent” communities. Finally, the third experiment addressed connections between the variability of ozone concentration and geography. The authors used passive samplers to mimic the direct exposure of the respiratory system to ozone as a factor of wind, movement, and position. The study concluded that people involved in outdoor activities are often exposed to several times above the threshold of 8- hour standard of 65 ppb (parts per billion) for disadvantaged populations.
Region: Los Angeles, California
Publication Type: Technical report
Keywords: air quality, ozone, public health, and recreation