LUR models that use predictor variables derived from geographical information systems have been useful in characterising intraurban gradients in ambient concentrations of criteria air pollutants (including PM2.5 and NO2) for use in many air pollution health effects studies.
Many air pollution and atmospheric deposition problems are intertwined with one another, and these problems are often derived from the same cause, namely the burning of fossil fuels.
At the time, many air pollution experts saw the governor's pledge as maneuvering between himself and Attorney General Eliot Spitzer for environmental political credit.
The term 'ultrafine' is used by many air pollution scientists to denote particle of less than 100 nm diameter.
However, as in many air pollution studies, the average of ozone measures at the several fixed monitoring sites as a surrogate of individual exposures might result in misclassification bias.
Moreover, whereas many air pollution studies have measurements only every sixth day, we obtained daily data on PM2.5 and on both gaseous and particle-bound PAHs for 5 months each year for 10 years, and every-third-day measurements for another 5 months per year.
