Roy M. Harrison

TL;DR: In this article, a pragmatic mass closure model for airborne particulate matter at urban background and roadside sites was proposed and the mass and composition data for PM2.5 and PM1.0 were intercompared and perhaps surprisingly the differences are accounted for more by components typical of fine fraction particles such as ammonium sulphate and ammonium nitrate than those residing primarily in the coarse fraction such as sea salt, calcium-rich dusts.

TL;DR: Based on hourly measurements of NOx NO2 and O3 and meteorological data, an ordinary least squares (OLS) model and a first-order autocorrelation (AR) model were developed to analyse the regression and prediction of nox and NO2 concentrations in London.

TL;DR: In this paper, the authors measured the flux of N 2 O, NO and NO 2 between grassland and the atmosphere over 1 y using three plots which have been maintained at a constant pH of 3.9, 5.9 and 7.6 over many years.

TL;DR: In this article, the authors examined the global variation in particle size distribution simulated by 12 global aerosol microphysics models to quantify model diversity and to identify any common biases against observations.

TL;DR: In this article, the influence of synoptic-scale atmospheric transport patterns on observed levels of sulphate, nitrate and PM10 at Belfast (urban) and Harwell (rural) has been examined.