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 understand that air pollution is within our control. The causes of air ***** are many, and save for natural contributions to temporarily poor air quality, the bulk of air pollution problems are results of human technological advances. Since ***** Industrial Revolution, massive amounts ***** fossil fuels like coal ***** oil have been and continue to be consumed. The benefits of industry may indeed outweigh the detriments, but it is finally time for technology to solve its own problems. Until the past few decades, ***** spoils ***** industrialization were taken ***** granted. We can forgive our forebears for their ignorance in developing technologies with unforeseen consequences. Who could have known how human life would benefit by burning coal for electricity or oil f***** au*****mobiles? However, the ***** of these ***** has caused an epidemic of health ********** environmental problems and contributed to a gener*****l degradation ***** ***** on earth.

Air ***** is a broad term that actually refers to a gamut of familiar environmental problems. These problems include acid rain, domestically produced smoke, smog, the greenhouse effect, particulates, radionuclides, and ***** depletion of the ozone *****. By far the biggest contributor to air pollution in general is ***** burn*****g 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 d*****asters. Acid rain is one of the fallouts of ***** ***** Revolution; before the proliferation of *****, the pH level of ***** tended ***** be slightly *****ic, ***** rarely below ***** 5. Since the Industrial Revolution, sulphuric acid and nitrogen gases that evaporate and combine with airborne water cause rain to ***** a pH level of 5 or lower. C*****rs are also the most major contributor to smog. Cities with huge transportation networks exhibit ***** highest ********** 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 may have revolutionized human life, but it also pollutes it due ***** the number ***** particulates that now litter our air. Particulates are the large particles suspended in ***** air that not only ***** smog but seep *****to the lungs of all animals. They include particles from smoke, diesel fuel, and dust.

Fossil ***** burning at power stations ***** causes an excess of carbon dioxide to be emitted in***** the environment. This ***** only creates acid rain but also contri*****es to ***** greenhouse effect and global warming. Chlorofluoro*****s, which are comm***** used in air conditioning, refrigeration, and solvents, also kindle the greenhouse effect, as does deforestation. Agriculture and w*****te disposal are also ***** culpr***** that bring about global warming as ***** 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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