Studies of Air Pollution Control by Southern California Edison Company

1959 ◽  
Vol 81 (1) ◽  
pp. 1-5
Author(s):  
A. J. Haagen-Smit

The relative contribution of various pollutants found in the Los Angeles area is discussed. Processes designed to curtail the emission of oxides of sulfur and nitrogen are described, as well as some results of experiments at the Southern California Edison Company’s El Segundo Steam Station.

1963 ◽  
Vol 13 (3) ◽  
pp. 112-115
Author(s):  
S. Smith Griswold ◽  
Arthur A. Atkisson ◽  
Robert E. Neligan ◽  
Frank Bonamassa ◽  
Wallace Linville

1973 ◽  
Vol 13 (1) ◽  
pp. 125
Author(s):  
Hanns F. Hartmann

The gases comprising the atmosphere are in dynamic balance both with the oceans and the dry land of the continents. The mechanisms which operate to keep the atmospheric content of oxygen, nitrogen, carbon and sulphur constant are now well defined. The capacity of the system to absorb excess gaseous impurities is adequate on a global basis with the exception of carbon dioxide.Air pollution is thus a local problem resulting from the overloading of a particular air space with contaminants. The greater part of air pollution is due to the combustion of fossil fuels. Ease of control and virtual freedom from sulphur give natural gas an advantage over liquid and solid fuels as far as air pollution control is concerned. Oxides of nitrogen are produced when natural gas is burned but in smaller quantities than in the combustion of other fuels. In high capacity industrial gas burners where oxides of nitrogen may be generated in large quantities control is easier and can achieve a lower level of oxides of nitrogen than is the case with other fuels.The large scale use of natural gas to solve the air pollution problems of Pittsburgh, Los Angeles and many other cities is proof of the usefulness of gas in this respect. Specialised applications include use in incinerators and industrial after burners. Advances in removal of impurities from fuels and of air pollutants from products of combustion combined with rising gas prices will in time displace gas from its preeminent position in air pollution control. It is, however, likely to retain its advantage in small installations and in dense urban areas. In public and private transport its use will probably remain limited.While technological developments in the distant future may eventually displace fossil fuels, gas will have a large share of the fuel market until that day comes and will contribute effectively to the control of air pollution.


2019 ◽  
Vol 134 (3) ◽  
pp. 307-312 ◽  
Author(s):  
Merlin Chowkwanyun

This article analyzes the early years of 20th-century air pollution control in Los Angeles. In both scholarship and public memory, mid-century efforts at the regional level were overshadowed by major federal developments, namely the Clean Air Act and creation of the US Environmental Protection Agency in 1970. Yet the mid-century local experience was highly consequential and presaged many subsequent challenges that persist today. The article begins with an exploration of the existential, on-the-ground misery of smog in Los Angeles during the 1940s and 1950s. The article examines the role that scientific evidence on smog did and did not play in regulation, the reasons smog control galvanized support across various constituencies in the region, and, finally, some of mid-century air pollution’s limits.


1972 ◽  
Vol 94 (3) ◽  
pp. 266-274 ◽  
Author(s):  
C. P. Kyan ◽  
J. H. Seinfeld

A general theoretical framework for the determination of multiyear air pollution control strategies for an airshed is presented. It is assumed that emission control procedures are changed on a year-to-year basis. The problem considered is to determine the set of control measures that minimizes the total cost of control while maintaining specified levels of air quality each year. It is assumed that an airshed model exists which is capable of predicting pollutant concentrations as a function of source emissions in the airshed. It is shown that the general multiyear problem can be solved by discrete dynamic programming. The method is illustrated on the problem of determining control strategies for carbon monoxide for a three-year period in the Los Angeles basin.


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