Essay - The Ring of Haze Surrounding Modern Cities Looms Ominously and...

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The ring of haze surrounding modern cities looms ominously and the hole in the ozone layer grows, but people rarely underst***** that air pollution is within our control. The causes of air pollution are many, and save for natural contri*****ions to temporarily poor ***** quality, the bulk of air pollution problems are results ***** human technological advances. Since the Industrial Revolution, massive amounts of fossil fuels like coal ***** oil have been and continue to be consumed. The *****nefits ***** industry may indeed outweigh the detriments, but it is finally time for technology to solve *****s own problems. Until the past few decades, the spoils of industrialization were taken for granted. We can *****give our forebears for *****ir ignorance in developing technologies with unforeseen consequences. Who could have known how human life would benefit by burning ***** for electricity or oil ***** automobiles? However, the burning of these ***** has caused an epidemic of health *****d environmental problems and contributed to a general degradation ***** life on earth.

Air ***** is a bro*****d term ***** actually refers to a gamut of familiar environmental problems. *****se ***** include acid rain, domestically produced smoke, smog, the greenhouse effect, particulates, radionuclides, and ***** depletion of the ozone layer. By far the biggest contribut***** to air pollution in general is the ***** of fossil fuels, by both automobiles and factories. Power stations and road vehicles ***** boons to civilization but are also at the root of environmental and health disasters. Acid rain is one of ***** fallouts of the Industrial Revolution; before the pro*****ration ***** *****, the pH level of ***** tended ***** be slightly **********, ***** rarely *****low pH 5. ***** the ***** Revolution, sulphuric acid ***** nitrogen gases that evaporate and combine with ********** water cause rain to ***** a ***** level ***** 5 or lower. C*****rs are ***** the most major contributor to smog. Cities with huge transportation networks exhibit ***** highest levels of smog, especially if the city is geographically located in a basin that traps air. Los Angeles and Mexico City ***** perfect examples of ***** havens. The internal combustion engine ***** have revolutionized human life, but it also pollutes it due ***** the number of particulates that now l*****ter our air. Particulates are the large particles suspended in ***** air that not only ***** smog but seep ********** the lungs of all animals. They include particles from *****, diesel fuel, and dust.

Fossil ***** burning at power st*****ions also causes an excess of carbon dioxide to be emitted into the environment. This not only creates acid rain ***** also contributes to ***** greenhouse ***** and global warming. Chlorofluoro*****s, which are commonly used in air conditioning, refrigeration, and solvents, also kindle the greenhouse effect, as does deforestation. Agriculture and waste disposal ***** also ***** culprits that b***** about global warming as their by-products emit ***** *****.

Radionuclides come from processes like X-rays that emit ionizing radiation, causing severe detrimental effects on ***** life forms. Besides governmental regulati*****, steps must


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