有谁知道关于Air pollution的文章啊

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AIR POLLUTION

Sandstorms and the dust and gases from volcanoes pollute the earth's atmosphere naturally. But the most serious kind of air pollution comes from people. Factories, power stations, and rehicles exhausts[1] pump harmful gases into the air, contributing to global warming, causing acid rain[2], and destroying the ozone layer. On a much smaller scale, air pollution causes all sorts of breathing problems. There are no simple solutions to air pollution, but people could reduce air pollution by saving energy and reducing harmful emissions from vehicle exhausts and power stations.
When a volcano erupts, dust is blasted[3] high above the troposphere and may take weeks to be carried around the weather zone, so cannot be washed out of the air by rain. It will eventually fall to the earth after a few years.
Air pollution is at its worst over big cities where millions of people live, work, and travel about in cars, buses, and trucks. Factory chimmeys can be fitted with devices to cut down[4] air pollution, but this is expensive. If better pubic transport and cycle lanes were available in towns and cities, people would be less likely to use their cars, reducing the overall amount of pollution.
Smoking cigarettes adds to the general levels of air pollution as well as damaging our health. Cigarette smoke contains chemicals that can cause cancer, a gas which stops oxygen being taken into the blood and a substance called nicotine, which raises blood pressure and makes the heart beat faster. No-smoking areas cut down on this pollution and save non-smokers breathing in other people's cigarette smoke.

空气污染

沙暴和火山爆发喷出的尘埃和有毒气体自然而然地对地球大气造成的污染，然而最严重的空气污染却来自人类。工厂、火力发电站和车辆将有害废气排放到空气中，是造成全球气候变暖，出现酸雨，破坏臭氧层的罪魁祸首。就更小的范围来看，空气污染会引发各种呼吸道疾病。没有解决空气污染的简单办法，但人们可以通过节约能源、减少车辆和火力发电站的有害气体排放来达到降低污染的目的。

火山爆发时，尘埃被高高喷射入对流层以上的空间，需要几个星期才飘浮移至气象层，因而雨水无法将其从大气中冲走。几年之后，尘埃将最终漂落在地球上。

好几百万人在城市里工作、生活，还以轿车、公共汽车和卡车为交通工具，因而这种百万人口的城市空气污染最为严重。工厂烟囱可以安装滤清装置以减少空气污染，但成本昂贵。如能改善城镇公共交通，并设置自行车车道，人们就不再会热衷于使用自家汽车，从而达到全面减少污染的目的。

吸烟不仅对健康有害，而且增加空气污染程度。香烟雾含有多种有害物质：不仅有致癌化学物质、有某种能阻止氧气进入血液的气体，还有引起血压增高、心速加快的被称为尼古丁的物质。设立禁烟区有助于减少污染，并能使不吸烟者免受被动吸烟之害。

The bane of the air pollution Air pollution to the influence of the weather very big, the pollutant that air pollution exhaust play chess a region and global weathers and will produce the certain influence, particularly to world weather of influence, see from the farsighted standpoint, this kind of the influence will be very serious. A:The content increment of the carbon dioxide in the atmosphere: It imply various complicated composition in the fuel, at burnable after produce various harmful material, even not the fuel with miscellaneous quality attains the complete combustion, also wanting to produce the water and carbon dioxides, positive because the fuel combustion makes the carbon dioxide in the atmosphere density increased continuously, breaking the balance of the nature carbon dioxide, to go to and may cause" green house effect", cause the Earth air temperature rise. Two: the ozone layer break The ozone layer is the best protection of the Earth umbrella, it absorbs to come from big and parts of ultraviolet ray of the sun.However be close to 20 years of science research and atmosphereses to prognosticate to discover:Annually spring South Pole ozone layer within atmosphere always at become thin, in fact exist an ozone" hole" in very atmosphere This kind of ozone exhaust the phenomenon is a kind of abnormal phenomenon, whether this expresses that this ultraviolet ray absorbs the layer or not is being placed in the global disaster?Pass the continuous science research, the people discover the serious breakage of material that social activity of mankind release ozone layer, certainly this kind of phenomenon still is affect by special weather appearance( the pole 涡 , cold of even flow the layer temperature, very even flow the layer cloud) in this region. 大气污染的危害 大气污染对气候的影响很大,大气污染排放的污染物对局部地区和全球气候都会产生一定影响，尤其对全球气候的影响，从长远的观点看，这种影响将是很严重的。 一：大气中二氧化碳的含量增加： 燃料中含有各种复杂的成分，在燃烧后产生各种有害物质，即使不含杂质的燃料达到完全燃烧，也要产生水和二氧化碳，正因为燃料燃烧使大气中的二氧化碳浓度不断增加，破坏了自然界二氧化碳的平衡，以至可能引发“温室效应”，致使地球气温上升。 二:臭氧层破坏 臭氧层是地球最好的保护伞，它吸收了来自太阳的大部分紫外线。然而近二十年的科学研究和大气观测发现：每年春季南极大气中的臭氧层一直在变薄，事实上在极地大气中存在一个臭氧“洞” 这种臭氧损耗现象是一种反常现象，这是否表明这一紫外线吸收层正处于全球性灾难呢？通过不断的科学研究，人们发现人类社会活动释放的物质严重的破坏了臭氧层，当然这种现象还受到这一地区独特的气象状态（极涡、寒冷的平流层温度、极地平流层云）的影响。 回答者：lingfuwu - 试用期 一级 10-27 09:50

Humans probably first experienced harm from air pollution when they built fires in poorly ventilated caves. Since then we have gone on to pollute more of the earth's surface. Until recently, environmental pollution problems have been local and minor because of the Earth's own ability to absorb and purify minor quantities of pollutants. The industrialization of society, the introduction of motorized vehicles, and the explosion of the population, are factors contributing toward the growing air pollution problem. At this time it is urgent that we find methods to clean up the air. The primary air pollutants found in most urban areas are carbon monoxide, nitrogen oxides, sulfur oxides, hydrocarbons, and particulate matter (both solid and liquid). These pollutants are dispersed throughout the world's atmosphere in concentrations high enough to gradually cause serious health problems. Serious health problems can occur quickly when air pollutants are concentrated, such as when massive injections of sulfur dioxide and suspended particulate matter are emitted by a large volcanic eruption. Air Pollution in the Home You cannot escape air pollution, not even in your own home. "In 1985 the Environmental Protection Agency (EPA) reported that toxic chemicals found in the air of almost every American home are three times more likely to cause some type of cancer than outdoor air pollutants". The health problems in these buildings are called "sick building syndrome". "An estimated one-fifth to one-third of all U.S. buildings, including the EPA headquarters, are now considered "sick". The EPA has found that the air in some office buildings is 100 times more polluted than the air outside. Poor ventilation causes about half of the indoor air pollution problems. The rest come from specific sources such as copying machines, electrical and telephone cables, mold and microbe-harboring air conditioning systems and ducts, cleaning fluids, cigarette smoke, carpet, latex caulk and paint, vinyl molding, linoleum tile, and building materials and furniture that emit air pollutants such as formaldehyde. A major indoor pollutant is radon-222, a colorless, odorless, tasteless, naturally occurring radioactive gas produced by the radioactive decay of uranium-238. "According to studies by the EPA and the National Research Council, exposure to radon is second only to smoking as a cause of lung cancer"

有篇pollution的，也许用得到 Polluton Today there is a lot of pollution in our Earth. It is a importent problem. The pullotion happen in water、air and earth, and it is badly with animal and human. For example, the water pullotion is couse by waste from factories and cities. If the river is polluted by chemical factories, the fish which lives in the river will be dead. Then if some people eat those fish , they will also be dead. The other example is air pullotion. It comes from factories、power stations and cars. The chemical in the smoke will fall in the rain. This "chemical rain" will kill trees and fishes, and it`s also bad to the building. Form that we can know how is the pollution bad. We hope that the scientifices can find out the way to make environment better soon, and resume the face of nature like before.