Science. 1993 Jan 8;259(5092):194-9. doi: 10.1126/science.259.5092.194.
The atmospheric lifetimes of the fluorinated gases CF(4), C(2)F(6), c-C(4)F(8), (CF(3))(2)c-C(4)F(6), C(5)F(12), C(6)F(14), C(2)F(5)Cl, C(2)F(4)C(12), CF(3)Cl, and SF(6) are of concern because of the effects that these long-lived compounds acting as greenhouse gases can have on global climate. The possible atmospheric loss processes of these gases were assessed by determining the rate coefficients for the reactions of these gases with O((1)D), H, and OH and the absorption cross sections at 121.6 nanometers in the laboratory and using these data as input to a two-dimensional atmospheric model. The lifetimes of all the studied perfluoro compounds are >2000 years, and those of CF(3)Cl, CF(3)CF(2)Cl, and CF(2)ClCF(2)Cl are >300 years. If released into the atmosphere, these molecules will accumulate and their effects will persist for centuries or millennia.
这些含氟气体（CF(4)、C(2)F(6)、c-C(4)F(8)、(CF(3))(2)c-C(4)F(6)、C(5)F(12)、C(6)F(14)、C(2)F(5)Cl、C(2)F(4)C(12)、CF(3)Cl 和 SF(6)）的大气寿命令人担忧，因为这些长寿命化合物作为温室气体对全球气候可能产生影响。通过测定这些气体与 O((1)D)、H 和 OH 的反应速率系数以及在实验室中在 121.6 纳米处的吸收截面，并将这些数据作为输入应用于二维大气模型，评估了这些气体可能的大气损失过程。所有研究的全氟化合物的寿命都>2000 年，CF(3)Cl、CF(3)CF(2)Cl 和 CF(2)ClCF(2)Cl 的寿命都>300 年。如果这些分子释放到大气中，它们将积累并持续存在数百年甚至数千年。
