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Showing papers in "Atmospheric Environment in 1989"


Journal ArticleDOI
TL;DR: In this article, the authors proposed a method for estimating the dry deposition velocities of atmospheric gases in the U.S. and surrounding areas and incorporated it into a revised computer code module for use in numerical models of atmospheric transport and deposition of pollutants over regional scales.

2,230 citations


Journal ArticleDOI
TL;DR: Rader et al. as discussed by the authors measured the sensitivity of particle size to relative humidity for monodisperse Los Angeles aerosols and found that 30% of the particles in the 0.2-0.5 μm range were nonhygroscopic.

281 citations


Journal ArticleDOI
TL;DR: In this paper, a few alternate forms of the socalled bootstrap and jackknife resampling procedures are tested using a concocted data set with a Gaussian parent distribution, with the result that the jackknife is the most efficient procedure to apply, although its confidence bounds are slightly overestimated.

270 citations


Journal ArticleDOI
TL;DR: In this paper, the results of smog chamber experiments are used to estimate the fraction of reactive organic gases (ROG) that is converted into aerosols, called the fractional aerosol coefficient.

236 citations


Journal ArticleDOI
TL;DR: In this paper, the acid acidity of the precipitation was investigated using the acid precipitation in Ontario Study (APIOS) Event Wet/Dry Deposition Network (WDPN).

233 citations


Journal ArticleDOI
TL;DR: In this article, a random walk model is developed based on the approach of Thomson (1987, J. Fluid Mech. 180, 529,556) which satisfies the well-mixed condition, incorporates skewness in the vertical velocity and has Gaussian random forcing.

233 citations


Journal ArticleDOI
TL;DR: In this paper, new predictions for the nucleation rates in the H 2 SO 4 -H 2 O mixture are presented, which take into account the influence of hydrate formation in the gas phase as well as s new values for the vapor pressure.

190 citations


Journal ArticleDOI
TL;DR: In this article, atmospheric concentrations of HNO3, HCl and NH3 were measured at Essex, UK and Cabauw, The Netherlands, using both filter pack (Essex) and denuder sampling methods and integration times of 3, 12 and 24 h.

185 citations


Journal ArticleDOI
TL;DR: In this paper, bottom-up and top-down diffusion of two reacting air constituents in a dry homogeneous convective boundary layer with zero mean wind are simulated using large-eddy simulations.

165 citations


Journal ArticleDOI
TL;DR: In this paper, a compilation of published data on the rates of mass loss from calcareous (carbonate) stones is presented Data from nine field exposure experiments are then used in statistical analyses to postulate cause-and-effect relationships with environmental variables, based on a theoretical framework.

151 citations


Journal ArticleDOI
TL;DR: The water content of atmospheric aerosol particles is calculated, both above and below the classic deliquescent point, and the existence of water in the paniculate phase is predicted to be strongly dependent on the aerosol composition as mentioned in this paper.

Journal ArticleDOI
TL;DR: Ozone and filterable bromine measurements in the high Arctic during the spring return of solar radiation suggest a rapid concurrent destruction of O3 and conversion of gaseous to particulate Br as mentioned in this paper.

Journal ArticleDOI
TL;DR: In this paper, the authors applied absolute principal components analysis to the Ny Alesund winter data yielded three components, which were identified as a general pollution component, crustal dust and sea-salt.

Journal ArticleDOI
TL;DR: The isotopic composition of aerosol lead in the polar region potentially contains information on the origin of Arctic pollution which will complement that from meteorological and trace elemental composition studies as mentioned in this paper.

Journal ArticleDOI
TL;DR: The adsorption of NH3 and SO2 on the external leaf surface of bean (Phaseolus vulgaris L.) and poplar (Populus euramericana L.) was studied in this article.

Journal ArticleDOI
TL;DR: A simple General Finite Line Source Model (GFLSM) based on the Gaussian diffusion equation is formulated so that it could be used for any orientation of wind direction with roadway and also does not have the infinite line source constraint of the General Motors (GM) model.

Journal ArticleDOI
TL;DR: In addition to the dominant nitroarenes 2-nitrofluoranthene and 1-nitropyrene, the less abundant nitro-arenes of molecular weight 247 in ambient particles collected during summer and winter pollutant episode conditions in southern California have been identified by gas chromatography/mass spectrometry.

Journal ArticleDOI
TL;DR: A photochemical model has been used to quantify the sensitivity of the tropospheric oxidants O3 and OH to changes in CH4, CO and NO emissions and to perturbations in climate and stratospheric chemistry as mentioned in this paper.

Journal ArticleDOI
TL;DR: In this article, the ionic concentrations in two size-segregated fractions of cloudwater collected during several sampling intervals suggest that there is a large difference between the average composition of the smaller droplets and that of the larger droplets.

Journal ArticleDOI
TL;DR: In this article, lead isotopic and meteorological information point to In as the best elemental tracer of emissions from selected northern Canadian smelters, and lead measurements in fall 1984 and spring 1986 were apportioned to the respective sources as follows: for 1984 (55, 2, 43%) and for 1986 (69, 7, 24%).

Journal ArticleDOI
TL;DR: The smoothing procedure is proposed to avoid negative concentrations in puff calculations using finite differences, finite elements and pseudo-spectral methods and the accuracy of the results is evaluated through the comparison with the results of box model calculations.

Journal ArticleDOI
TL;DR: In this paper, a series of flights were made over the Atlantic Ocean, and along the American, African and European continents, between 70°N and 60°S, and up to a cruising altitude of 12 km.

Journal ArticleDOI
TL;DR: In this paper, a linear free energy relationship between hydroxyalkylsulfonate stabilities and carbonyl hydration constants is presented which can be used to estimate the stability constants of other unknown carbonyls-bisulfite adducts.

Journal ArticleDOI
TL;DR: In this paper, the authors measured NO 2 deposition to elements representative of a forest landscape (e.g., foliage, bole, soil) were conducted in an open gas exchange system, and the deposition rates were calculated as the product of flow rate and the inlet/outlet concentration differential normalized for surface area and corrected for losses to chamber walls.

Journal ArticleDOI
TL;DR: In this article, the authors used samples from three snowpits near Dye 3 in South Greenland to study seasonal variations in contaminant transport from the atmosphere to the Ice Sheet, showing that concentrations of SO2−4 in the air show a strong peak in late February, resulting from long-range transport of mid-latitude anthropogenic emissions, while those in the snow show a broad peak in January, February and March with smaller seasonal variation overall.

Journal ArticleDOI
TL;DR: In this paper, a global tropospheric tracer transport model is applied to an overall 85Kr emission database, which is suitable for computer model testing, because it has rather well-known sources and sinks.

Journal ArticleDOI
TL;DR: In this article, the particle dry deposition flux data collected simultaneously on the top and bottom surfaces of a smooth plate with a sharp leading edge that was pointed into the wind by a wind vane.

Journal ArticleDOI
TL;DR: PAN and PPN were measured in a series of eight field studies performed at urban, rural and remote locations in the contiguous U.S. during 1983-1985.

Journal ArticleDOI
TL;DR: In this paper, rain water and aerosol samples were collected at a few locations representative of urban and non-urban regions in India and analyzed for major chemical components along with pH.

Journal ArticleDOI
TL;DR: In this article, a chromatographic fingerprint of PCBs in airborne fallout and in the lower atmosphere was obtained from each sampling station and the fingerprint was the combined result of the station's location and climate.