Sulfuric acid (H₂SO₄) is the seed molecule for formation of stratospheric sulfate aerosol layer that assists ozone depletion by activation of halogen species. The impact of increased stratospheric sulfate aerosols due to large volcanic eruptions and possible side effect claimed in the geoengineering scheme of global climate using man-made injected stratospheric sulfate aerosols is ozone depletion. Given that both volcanic eruptions and geoengineering scheme are ultimately connected with increased upper stratospheric concentrations of H₂SO₄, here we show by theoretical approach that the pressure-independent H₂SO₄ + O(¹D) insertion/addition reactions via barrierless formation of peroxysulfuric acid (H₂SO₅) or HSO₄ + OH radicals or sulfur trioxide (SO₃) + hydrogen peroxide (H₂O₂) molecules are the potential routes towards H₂SO₄ loss above the stratospheric sulfate aerosol layer, and for the regeneration or transportation of consumed lower-middle stratospheric OH radical in the upper stratosphere at the cost of O(¹D)/ozone.

硫酸（H ₂ SO ₄）是形成平流层硫酸盐气溶胶层的种子分子，该层通过激活卤素物质来辅助臭氧消耗。由大的火山喷发引起的平流层硫酸盐气溶胶增加以及使用人造注入的平流层硫酸盐气溶胶的全球气候地球工程计划所声称的可能的副作用的影响是臭氧消耗。考虑到火山喷发和地球工程方案最终都与高平流层中H ₂ SO _4的浓度增加有关，在这里我们通过理论方法证明与压力无关的H ₂ SO ₄  + O（¹D）通过无障碍形成过氧硫酸（H ₂ SO ₅）或HSO ₄  + OH自由基或三氧化硫（SO ₃）+过氧化氢（H ₂ O ₂）分子的插入/加成反应是通向H ₂ SO ₄的潜在途径损失平流硫酸盐气溶胶层的上方，以及用于再生或O（的成本消耗下中等平流层高层平流层中的OH基团的交通¹ d）/臭氧。