pm2.5毒理研究：PM2.5傷害誰？兒童首當(dāng)其沖
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- 發(fā)布日期：2017-05-25 11:33:23
PM2.5因?yàn)榱叫?，在空氣中滯留時(shí)間長，易避開器官細(xì)胞纖毛等過濾機(jī)制進(jìn)入下呼吸道，簡略引起呼吸道疾病，哮喘、肺癌發(fā)病率的上升都與PM2.5污染有關(guān)。而跟著年紀(jì)的增長，人的呼吸系統(tǒng)也在不斷生長發(fā)育，而不一樣的呼吸體統(tǒng)對顆粒物的堆積有著很大的影響。少年孩童的各有些顆粒物堆積率都較成年人高，因而，細(xì)顆粒物對孩童的損害更為嚴(yán)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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通常研討認(rèn)為，空氣中的PM2.5濃度上升常常致使住院率、門診率、心肺疾病增加的患者多為靈敏人群，如機(jī)體抵抗力低下的老年人，有心肺疾病、體弱的人，比方哮喘、抵抗力低而室外活動(dòng)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.
然而孩童雖然是對PM2.5的靈敏人群，但對孩童的保護(hù)辦法卻不盡人意，而且孩童露出危險(xiǎn)反而是最大的。孩童常常在人群集合區(qū)，且室外活動(dòng)頻頻，很容易身處PM2.5超支的環(huán)境。有研討人員在北京選取了有些樣本進(jìn)行調(diào)查計(jì)算，成果如下（標(biāo)準(zhǔn)按照美國1997年環(huán)境空氣質(zhì)量二級標(biāo)準(zhǔn)規(guī)則的PM2.5日平均濃度限值為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):
從表中數(shù)據(jù)我們能夠簡略看出，孩童人群環(huán)境超支率較大，特別是學(xué)校環(huán)境，以及夏季的到了都增加了孩童露出在PM2.5中的危險(xiǎn)。
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.
這些年孩童哮喘的患病率及死亡率均有所上升，嚴(yán)峻影響小孩身心健康，這與PM2.5污染的越加嚴(yán)峻脫不了聯(lián)系。重復(fù)咳嗽、胸悶、氣促等等這些都在折磨著孩童，也折磨著家長的身心。進(jìn)行環(huán)境管理，削減PM2.5對孩童的侵害的辦法必不可少。特別是學(xué)校、醫(yī)院這些人群集合，孩童常去的環(huán)境，應(yīng)樹立良好的通風(fēng)凈化系統(tǒng)，多植吸收污染較棒的花草樹木。
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.
暴露倉,動(dòng)物氣體染毒,pm2.5毒理研究 http://fgljy.com/ ,恒溫恒濕潔凈稱量室等全球先進(jìn)應(yīng)用設(shè)備請選擇巨康科技！
