Journal
ATMOSPHERIC ENVIRONMENT
Volume 47, Issue -, Pages 323-329Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.atmosenv.2011.10.058
Keywords
Organosulfates; Secondary organic aerosol; Biogenic aerosol; Asia
Funding
- National University of Singapore
- National Science Foundation through East Asia and Pacific Summer Institute [OISE-0913687]
- Maldives Climate Observatory at Hanimaadhoo (MCOH)
- United Nations Environment Programme (UNEP)
- National Oceanic and Atmospheric Administration (NOAA)
- National Academy of Sciences, US Agency for International Development (US AID)
- Higher Education Commission (HEC), Government of Lahore
Ask authors/readers for more resources
Organosulfates have recently been observed in ambient atmospheres as a component of aerosol organic matter. This study presents the first characterization of organosulfates in Asia and demonstrates their ubiquity and chemical diversity, yet minor contribution to fine particulate mass. Organosulfates were characterized in ambient aerosol by ultra-performance liquid chromatography and high-resolution mass spectrometry, which allowed for experimental determination of molecular formulas and estimation of atmospheric abundance. Aerosols were analyzed from four sites spanning urban and remote locations, including Hanimaadhoo, Maldives, Gosan, Korea, Singapore, and Lahore, Pakistan. Semi-quantitative analysis yielded average estimates of OS accounting for less than 1% of PM2.5 mass, 2.3% of organic carbon, and 3.8% of total sulfate. The majority of the observed compounds were attributed to biogenic secondary organic aerosol from isoprene or monoterpenes. New organosulfates are also reported. (C) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available