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隨著近年澳門經濟的飛速發展翻译服务, 能源的需求也急劇上升。當中無論還是發電過程中燃燒石化燃料排放的廢氣, 抑或是汽車排放的尾氣, 都使得空氣中的硫氧化物和氮氧化物越來越多; 另外, 澳門也受到來自於珠三角地區的工業廢氣影響, 我們不難發現, 近年來澳門的空氣質量不那麼令人樂觀。這些氣態化合物會使大氣水汽酸化, 之後降落到地面形成酸雨。酸雨是指pH值小於5.6的降水, 它是大氣受污染的一種表現。這樣的降水現在嚴重影響人類賴以生存的環境和人類本身, 是當今全球廣泛關注的環境問題之一。調查和實驗表明, pH值小於4.5的酸性降水不僅可以使林木受害, 而且會使金屬材料的腐蝕速率急劇增大; 當降水pH值小於4.0時危害更為嚴重。
As rapid development of Macao’s economy in recent years, demand on energy dramatically increases. Both waste gas which is discharged in fossil fuel burning in the process of power generation and off-gases which is exhausted by vehicles make more and more sulfur oxides and nitrogen oxides in air; additionally, Macao is influenced by industrial waste gas from Perl River Delta region, it is not difficult to find that air quality in Macao in recent years is not good. These gaseous compounds will acidify atmospheric moisture, and then it will become acid rain. Acid rain refer to rainfall with pH value less than 5.6, it shows the atmosphere is polluted. Now this rainfall seriously affects the environment which we need and human being, it is one of the environmental problems which are widely concerned in the world at present. Investigation and experiment show that acid rainfall with pH value less than 4.5 not only damages woods, but also greatly accelerates the corrosion rate of metal material; when pH value of rainfall is less than 4.0, damage is more serious.
所用資料為2007年1月1日至2008年12月31日澳門每次降水過程的酸雨觀測資料, 共收集降水樣品129個广州翻译公司, 其中酸雨樣品為122個, 酸雨出現頻率為94.57%。 pH均值採用降水量加權的統計方法, 即將每次降水的pH值換算成氫離子濃度後, 乘上相應的降水量求其平均。
The used material is the acid rain observation data of each rainfall in Macao from January 1, 2007 to December 31, 2008, and the total collected rainfall sample are 129, in which, acid rain sample are 122, frequency of acid rain is 94.57%. pH average is calculated by amount of precipitation weighted statistical means, i.e. after ph value of each rainfall is converted into hydrogen ion concentration, it will multiply corresponding amount of precipitation to compute the average. |
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