TY - JOUR AU - Lelieveld, J. AU - Bourtsoukidis, E. AU - Brühl, C. AU - Fischer, H. AU - Fuchs, H. AU - Harder, H. AU - Hofzumahaus, A. AU - Holland, F. AU - Marno, D. AU - Neumaier, M. AU - Pozzer, A. AU - Schlager, H. AU - Williams, J. AU - Zahn, A. AU - Ziereis, H. TI - The South Asian monsoon—pollution pump and purifier JO - Science / Science now Science now VL - 361 IS - 6399 SN - 1095-9203 CY - Washington, DC PB - Assoc.87289 M1 - FZJ-2018-06582 SP - 270 - 273 PY - 2018 AB - Air pollution is growing fastest in monsoon-impacted South Asia. During the dry winter monsoon, the fumes disperse toward the Indian Ocean, creating a vast pollution haze. The fate of these fumes during the wet summer monsoon has been unclear. Lelieveld et al. performed atmospheric chemistry measurements by aircraft in the Oxidation Mechanism Observations campaign, sampling the summer monsoon outflow in the upper troposphere between the Mediterranean and the Indian Ocean. The measurements, supported by model calculations, show that the monsoon sustains a remarkably efficient cleansing mechanism in which contaminants are rapidly oxidized and deposited on Earth's surface. However, some pollutants are lofted above the monsoon clouds and chemically processed in a reactive reservoir before being redistributed globally, including to the stratosphere. LB - PUB:(DE-HGF)16 C6 - pmid:29903882 UR - <Go to ISI:>//WOS:000439145800041 DO - DOI:10.1126/science.aar2501 UR - https://juser.fz-juelich.de/record/857597 ER -