pm2.5毒理研究：PM2.5伤害谁？儿童首当其冲
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- 发布日期：2017-05-25 11:33:23
PM2.5因为粒径小，在空气中滞留时间长，易避开器官细胞纤毛等过滤机制进入下呼吸道，简略引起呼吸道疾病，哮喘、肺癌发病率的上升都与PM2.5污染有关。而跟着年纪的增长，人的呼吸系统也在不断生长发育，而不一样的呼吸体统对颗粒物的堆积有着很大的影响。少年孩童的各有些颗粒物堆积率都较成年人高，因而，细颗粒物对孩童的损害更为严重！
PM2.5 for small size, long residence time in the air, to avoid organ cell cilia filtering mechanism in the lower respiratory tract, simple respiratory diseases, the increased incidence of asthma and lung cancer are related to PM2.5 pollution. With the growth of age, the respiratory system is also in constant growth, and not the same as the respiratory system of particles accumulation has great influence. The accumulation rate of some particles in young children is higher than that in adults, so the damage of fine particles to children is more serious!
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通常研讨认为，空气中的PM2.5浓度上升常常致使住院率、门诊率、心肺疾病增加的患者多为灵敏人群，如机体抵抗力低下的老年人，有心肺疾病、体弱的人，比方哮喘、抵抗力低而室外活动量大的孩童等。
Usually, the research found that, PM2.5 concentration in the air increased often resulting in hospitalization rate, outpatient rate, heart and lung diseases increased in patients with multiple sensitive populations, such as the low immunity of the elderly, heart and lung disease, weak people, such as asthma, low resistance and large amount of children and other outdoor activities.
然而孩童虽然是对PM2.5的灵敏人群，但对孩童的保护办法却不尽人意，而且孩童露出危险反而是最大的。孩童常常在人群集合区，且室外活动频频，很容易身处PM2.5超支的环境。有研讨人员在北京选取了有些样本进行调查计算，成果如下（标准按照美国1997年环境空气质量二级标准规则的PM2.5日平均浓度限值为65μg/m3）：
However, although children are sensitive to PM2.5, the protection of children is not satisfactory, and children are exposed to danger instead of the biggest. Children are often gathered in crowds, and outdoors, and are prone to PM2.5 overruns. Some researchers in Beijing selected some samples for investigation and calculation, the results are as follows (standard according to the United States in 1997 ambient air quality standard two class PM2.5 day average concentration limit is 65 mu g/m3):
从表中数据我们能够简略看出，孩童人群环境超支率较大，特别是学校环境，以及夏季的到了都增加了孩童露出在PM2.5中的危险。
From the data in the chart, we can see that the child population has a greater rate of environmental overruns, especially in the school environment and the summer, which increases the risk of exposing children to PM2.5.
这些年孩童哮喘的患病率及死亡率均有所上升，严峻影响小孩身心健康，这与PM2.5污染的越加严峻脱不了联系。重复咳嗽、胸闷、气促等等这些都在折磨着孩童，也折磨着家长的身心。进行环境管理，削减PM2.5对孩童的侵害的办法必不可少。特别是学校、医院这些人群集合，孩童常去的环境，应树立良好的通风净化系统，多植吸收污染较棒的花草树木。
The prevalence and mortality of childhood asthma have increased in recent years, which seriously affect the physical and mental health of children. This is more serious than the PM2.5 pollution. Repeated coughing, chest tightness, shortness of breath and so on. These children have been tortured, tortured and parents. Environmental management is essential to cutting PM2.5's child abuse. Especially in schools, hospitals, these groups of children, children often go to the environment, should establish a good ventilation and purification system, and more plants to absorb better pollution of trees and flowers.
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