Difference analysis of PM2.5 concen

Difference analysis of PM2.5 concentrations on the number of visiting patients in Department of Respiratory
PM2.5 is defined as the particulate matter (PM) with diameter ≤2.5 μm in air. It was found that the shorter the diameter of PM, the larger the corresponding amount concentration and the total area, which would absorb more harmful substances into human body and bring about more harms to human health (Meng et al., 2013). PM2.5, as is marked by tiny diameter, strong toxicity, longer retaining duration, remote transportation distance and no filtering resistance due to the physical construction, can enter into human body along with respiration and go deep into pulmonary alveolus for deposition, which then can disturb the gas exchange and blood circulation, thus leading to respiratory diseases.

結果 (中文) 1:

PM2.5 浓度对探望病人在呼吸科的数目的差异分析PM2.5 被指与直径 ≤ 2.5 μ m 在空气中颗粒物 (PM)。它是发现越短直径的 PM，越大的相应的量浓度和总面积，会吸收更多的有害物质进入人类身体，带来更多的危害，对人类健康 (孟等人，2013年)。PM2.5，由小直径、 毒性强、 再挡持续时间、 远程运输距离和有形的建筑，没有过滤阻力标记为可以进入人体随着呼吸和深入到肺泡的沉积，然后可以打扰气体交换和血液循环，从而导致呼吸道疾病。

結果 (中文) 3:

对可入肺颗粒物浓度对许多来访的呼吸内科患者差异分析可入肺颗粒物定义为颗粒物（PM）直径2.5米≤μ空气。研究发现，颗粒物的粒径越短，相应的浓度和总面积越大，这会吸收更多有害物质进入人体，对人体健康带来更多的危害（孟等人，2013）。可入肺颗粒物，是由小直径明显毒性强，更长的保留时间，远程运输距离和没有过滤阻力由于物理结构，可以进入人体，随着呼吸深入肺泡沉积，从而影响气体交换和血液循环，从而导致呼吸系统疾病。