East Asian summer monsoon delivers large abundances of very-short-lived organic chlorine substances to the lower stratosphere.

ABSTRACT: Deep convection in the Asian summer monsoon is a significant transport process for lifting pollutants from the planetary boundary layer to the tropopause level. This process enables efficient injection into the stratosphere of reactive species such as chlorinated very-short-lived substances (Cl-VSLSs) that deplete ozone. Past studies of convective transport associated with the Asian summer monsoon have focused mostly on the south Asian summer monsoon. Airborne observations reported in this work identify the East Asian summer monsoon convection as an effective transport pathway that carried record-breaking levels of ozone-depleting Cl-VSLSs (mean organic chlorine from these VSLSs ~500 ppt) to the base of the stratosphere. These unique observations show total organic chlorine from VSLSs in t

SUBMITTER: Pan LL 

PROVIDER: S-EPMC10962947 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature