Forecasting Air Pollution Potential
Author: United States. Public Health Service
Publisher:
Published: 1966
Total Pages: 12
ISBN-13:
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Author: United States. Public Health Service
Publisher:
Published: 1966
Total Pages: 12
ISBN-13:
DOWNLOAD EBOOKAuthor: Lawrence E. Neimeyer
Publisher:
Published: 1959
Total Pages: 6
ISBN-13:
DOWNLOAD EBOOKAuthor: Valentine J. Descamps
Publisher:
Published: 1971
Total Pages: 26
ISBN-13:
DOWNLOAD EBOOKAuthor: Edward Gross
Publisher:
Published: 1970
Total Pages: 38
ISBN-13:
DOWNLOAD EBOOKAuthor: M.E. Berlyand
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 325
ISBN-13: 9401137684
DOWNLOAD EBOOKInvestigations of atmospheric pollution have recently reached a new stage. In addition to the estimation and the monitoring of pollutant concentrations in the air around their sources, by way of observational data and also by calcu lations on the basis of theoretical research, it is now possible to make short term forecasts of air pollution and to use them to regulate industrial emissions. Many countries are interested in such forecasts. In the Soviet Union the organizations of the State Committee of the USSR for Hydrometeorology (Goskomgidromet) are carrying out a wide-scale scientific programme on the devising of methods to forecast atmospheric pollution. Prognostic groups are organized in territorial hydrometeocenters; in essence a new forecasting service has been established. Nowadays, in more than 200 towns of the USSR predictions are made and transmitted to large enterprises for the purpose of taking the necessary steps to preserve air qua lity. To ensure an operative working of this service, Methodological Instruc (1979) have been issued, as well as other instructions and guides. Wide tions scale verifications of proposed calculating methods have been made. Prob lems of forecasting and regulating air pollution have become evident lately in other countries as well. Much attention to these problems is payed by the World Meteorological Organization (WMO). They have been widely dis cussed in a number of international conferences and meetings for modelling and investigating pollutant distribution in the atmosphere. The number of publications on this subject is rapidly increasing.
Author: Edward Gross
Publisher:
Published: 1970
Total Pages: 30
ISBN-13:
DOWNLOAD EBOOKAuthor: John D. Stackpole
Publisher:
Published: 1967
Total Pages: 8
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1971
Total Pages: 72
ISBN-13:
DOWNLOAD EBOOKAuthor: George C. Holzworth
Publisher:
Published: 1972
Total Pages: 140
ISBN-13:
DOWNLOAD EBOOKThe mixing-layer height and the average wind speed within the mixing layer were calculated twice for each day of a 5-year record of upper air observations at 62 National Weather Service stations int he contiguous United States. The times of day of these calculations are morning and mid-afternoon. A rough allowance was made for effects of the urban "heat island" on the morning mixing heights. The morning and afternoon times coincide approximately with those of maximum and secondary minimum concentrations of slow-reacting pollutants in cities. These calculations illustrate the typical large diurnal variation in atmospheric dispersion. Twenty charts present seasonal and annual, and morning and afternoon mean mixing heights and wind speeds. A model of some general dispersion features over urban areas is described in which the normalized pollutant concentration averaged over a city is a function of mixing height, wind speed, and city size (distance the wind travels across the city). Frequency values of mixing height by wind speed are used with the model to calculate average normalized concentration frequencies for each weather station. Thirty charts present isopleth analyses of seasonal and annual, and morning and afternoon normalized pollutant concentrations that were exceeded 10, 25, and 50 percent of the time for specified city sizes. The occurrence of episodes during which upper limits on mixing height and wind speed were not exceeded were determined from the daily morning and afternoon values of these parameters. Isopleths of the total number of episode-days for episodes lasting at least 2 days and at least 5 days with various limiting mixing-height and wind-speed values are presented in 20 charts.
Author: Pius Lee
Publisher: MDPI
Published: 2018-04-27
Total Pages: 211
ISBN-13: 3038428396
DOWNLOAD EBOOKThis book is a printed edition of the Special Issue "Air Quality Monitoring and Forecasting" that was published in Atmosphere