ASSIGNMENT代写

英国利物浦essay代写 空气污染

2020-03-12 00:04

我们经常听到关于空气污染的新闻。新闻表明,人们将在未来几天戴上口罩,因为空气质量将变得更糟。空气质量影响人的呼吸系统。室外空气中不仅含有我们需要的氧气,还有许多危害人体健康的污染物。虽然许多自然现象,如火山、火灾等,把污染物排放到大气中,人类活动是空气污染的主要原因。自从工业革命以来,环境变得不同于以前。空气质量变得越来越差。大气中有一些污染物,如颗粒物、二氧化氮、二氧化硫、重金属和臭氧,它们会损害人类健康。根据世界卫生组织(WHO)的研究,空气污染是导致呼吸系统疾病患者死亡和疾病的主要原因。十分之九以上的人呼吸空气污染。每年有700万人死于空气污染。呼吸系统被这些污染物严重刺激。大量研究证明,空气污染会损害人类的呼吸系统。肺在呼吸系统中起着重要的作用。它们被用来吸收空气和促进空气输送。一些专业人士分析了短期暴露于空气污染对死亡率的影响。他们发现每日死亡率与空气污染程度有关。世界卫生组织指出,全球约有420万人过早死亡。世卫组织的调查显示,29%的人死于肺癌,17%的人死于急性下呼吸道感染,24%的人死于中风,25%的人死于缺血性心脏病,43%的人死于慢性阻塞性肺病。根据这一信息,我们可以得出结论,空气污染不仅破坏环境,而且危害人类健康。我们不能忽视空气污染问题,因为它是破坏人类呼吸系统的主要原因。
We usually hear the news about air pollution. The news suggests that people will wear the mask in the next few days because the quality of the air will become worse. The quality of the air affects the human respiratory system. The outdoor air includes not only oxygen we need but also many pollutants that damage human health. Although many natural phenomena, such as volcanoes, fire, and so on, emit the pollutants into the atmosphere, human activities are the main cause of air pollution. Since the industrial revolution, the environment has become different from before. The quality of the air has become worse and worse. There are some pollutants in the atmosphere, such as particulate matter, nitrogen dioxide, sulfur dioxide, heavy metal, and ozone, which can damage human health. According to the World Health Organization(WHO) study, it is the air pollution that results in the major reason of death and disease for people with respiratory system problems. Over Nine of ten people breathe in air pollution. Every year, 7 million people die because of air pollution. The respiratory system is highly irritated by these pollutants. Plenty of studies prove that air pollution can harm the human respiratory systems. Lungs play important roles in the respiratory system. They are used to absorb air and promote air delivery. Some professionals analyzed short-term exposure in air pollution on mortality. They found the daily mortality has a connection with the level of air pollution. The WHO pointed out that there are about 4.2 million premature deaths. The WHO survey shows 29% of those die from lung cancer, 17% of those die from acute lower respiratory infection, 24% of those die from stroke, 25% of those die from ischemic heart disease and 43% of those die from chronic obstructive pulmonary disease. (Data from WHO) According to this information, we can conclude that air pollution is not only damaging the environment but also harming human health. We cannot ignore the air polluted issue because it is the main reason for damaging the human respiratory system.
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