The atmospheric concentration of methylchloride (CH 3Cl) is very low, only at 10 -12 (V/V) level.
氯甲烷在大气中的浓度较低，仅为10 -12 级别。
2
Atmospheric histories of halocarbons from analysis of Antarctic firn air: methyl bromide, methylchloride, chloroform, and dichloromethane.
从南极永久性积雪空气分析大气卤烃的历史：甲基溴化物，甲基氯化物，氯仿和二氯甲。
3
Experimental results were reported here regarding the gas phase conversion of CTC to methylchloride by using transition metal salt composite catalyst embedded on active carbon.