机动车尾气对人体健康的危害

Effects of Vehicle Emissions on Human's Health

随着城市机动车保有量的不断增加,机动车尾气已经成为影响我国城市大气环境的主要问题之一。本文以儿童和交通警察两类人群为例,分析了机动车尾气污染给人体呼吸系统、免疫系统、心脑血管系统等造成的危害。结果表明,由于儿童的呼吸带与机动车尾气排放带非常接近,交警在机动车尾气环境中暴露事件太长,导致这两类人群的呼吸系统极易遭到破坏,发生支气管炎等疾病的概率大大增加;而免疫球蛋白水平和血压发生改变导致了抵抗能力的下降。最后建议通过采取发展公共交通、加强城市交通管理、完善检查维修制度等有效措施加强机动车尾气治理,减少对人体健康产生的危害。

With the increase of urban vehicle quantity, the traffi c exhaust pollution in the city has been an issue of major concern in China. In this paper we took children and traffi c police as an example and analyzed the damage of vehicle exhaust emission, which include respiratory system, immune system and cardiovascular. The results showed that the respiratory system is vulnerable to attacks because that the children's respiratory area is very close to vehicle exhaust emission area and traffic police expose to vehicle exhaust emission for too long, leading to a gradually increasing morbidity of bronchitis and lung disease, as well as the suppressed the immune system following with the change of immunoglobulin levels and blood pressure. Finally, suggestions were presented in terms of public transportation development, urban traffi c management, and perfecting inspection maintenance system to strengthen management of vehicle exhaust, for the purpose of reducing the harm to human body health.