Let’s useLos Angelesas an example city when discussing these conditions in greater detail. The climate of the Los Angeles basin is semi-arid with extended periods of warm and abundant sunlight. It is surrounded by mountains to the north and the east, which serve as barriers toair movement,...
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Next, after the automakers conceded in 1954 that the automobile was the largest single source of hydrocarbons in Los Angeles, and that auto exhausts were capable of forming ozone, industry officials wanted further work to substantiate the exact cause-and-effect relationship between auto pollutants and...
yield. In most cities, the automobile is the primary contributor of smog's precursor gases. As the name would suggest, the most notable example of this type of smog occurs in Los Angeles, California, but it has also been experienced in a large number of cities where the weather is dry,...
los angelesCrop damaging hydrocarbons which produce the same effect as smog are present in automobile exhaust gases. In the presence of ozone, auto exhaust fumes diluted 1:116 produced typical damage to the five smog indicator plants (spinach, sugar beet, bat, endive, alfalfa). Comparison with ...
The process of photochemical smog formation was first identified by Haagen-Smit and Fox (1954) in association with Los Angeles, a city whose geography makes it particularly susceptible to this type of smog formation. Sulfate aerosols and organic particulates are often produced concurrently with ozone...