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颗粒物浓度是空气质量的重要指标之一,它会影响人类呼吸系统的通畅,而且更重要的是空气中大部分致病微生物都吸附在颗粒物表面上.世界卫生组织刚刚指出在南撒哈拉地区,气候干旱使得沙尘增加,结果成为脑炎爆发的原因之一.撒哈拉沙漠的粒径小于2.5μm的细粒子可以远涉重洋直到美国的佛罗里达.有研究表明这些细粒子可以致病,因为它上面带有各种细菌.
Particulate matter concentration is one of the most important indicators of air quality, which affects the patency of the human respiratory system and, more importantly, most of the pathogenic microorganisms in the air are adsorbed on the surface of the particulate matter. WHO has just pointed out that in the sub-Saharan region, the climate Droughts have increased the amount of dust and have contributed to the eruption of encephalitis: fine particles of less than 2.5 μm in the Sahara may travel far across the oceans up to Florida in the US Studies have shown that these fine particles can be pathogenic because of the There are all kinds of bacteria.