preview

Air Pollution As A Growing Problem

Decent Essays

Since last century, air pollution has become one of the most popular topics related to people’s healthy life. After the Second World War, the consumption of fossil energy increase sharply due to the rapid development of industry and transportation, however, there almost no relevant environmental regulations to control the negative effects caused by industrial emissions. Therefore, air pollution became a growing problem. This paper will compare the conditions of air pollution between Los Angeles and Beijing, and discuss both reason and measures of their pollution.
On July 26, 1943, the downtown of Los Angeles was suddenly enveloped by acrid smoke in the morning. Thousands of people began to cough, tear and sneeze. Some of them even appeared …show more content…

While people keep studying about air pollution, Haagen-Smit, a chemistry professor at the California Institute of Technology and retired chemist Brunelle first found that the acrid smoke was formed by the photochemical effect in the atmosphere, which means the pollution was belonged to photochemical pollution instead of directly industrial emissions.
Of course, reducing the emissions of the stationary source was still the main treatment method before people found modern management method successfully. At that time, a lot of people used garbage incinerator in their backyard; they were against the ban of garbage incinerator because they thought chemical factories were the main source of pollution. Until 1958, garbage incinerators were banned after the establishment of garbage collection plan.
The first efficient modern management method was added leakproof hose on the fuel gun. When officials reviewed the air pollution control of Los Angeles in 1997, they said that adding leakproof on the fuel gun was the most economical and effective measure during 50 years.
After keeping reduce emissions, the dust has decreased two-thirds in the early 1950s of Los Angeles. However, ozone in the air, the main reason cause people’s untoward effect, still keep growing. Finally, people have to face the pollution brought by motor vehicle. During the whole 1950s, people were

Get Access