The atmospheric degradation of CFC replacements is major source for trifluoroacetate, which may react on OH radical and was wiped off by settlement and rainout mechanism.

• 氟里昂替代品在大气中的降解反应将产生大量的三氟乙酸，其在大气中可与OH自由基反应生成三氟甲烷和二氧化碳，主要的去除机制是沉降和雨除，并在地面水中累积；