Hi Everyone,
SOCAAR is pleased to announce an additional Seminar for October:
Monday, October 31, 2016
2 ¨C 3 PM
200 College Street, WB 215
PM2.5 components over China and their changes
Dr. Fumo Yang
Research Scientist & Director of Center for Atmospheric Environment
Chongqing Institute of Green and Intelligent Technology
Chinese Academy of Sciences
Dr. Fumo Yang is a Research Scientist and Director of Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology,
Chinese Academy of Sciences. He received his Ph.D. from School of Environment, Tsinghua University (2002). His research interests are in the area of atmospheric aerosols, with a focus on PM2.5 characterization and source apportionment. He has published more
than 90 peer-viewed journal papers (including two highly cited papers ¡°The characteristics of PM2.5 in Beijing, China¡± and ¡°Characteristics of PM2.5 speciation in representative mega cities and across China¡±) and a scholarly monograph (¡°Atmospheric particulate
matter and regional complex pollution¡±, 2011). He received the second prize of State Natural Science Awards, China (2009), and the 2013 national book award.
Abstract: The magnitude and spatial pattern of PM2.5 mass
and chemical speciation varied noticeably over geographic regions in China. While noticeable progress in clean air campaign has been achieved in recent years, PM2.5 was still at high levels. North region suffered the most severe PM2.5 pollution, followed by
Northwest and Central China. Sulfate, nitrate and ammonium together (SNA, usually referred to secondary inorganic aerosol) constituted one-third of PM2.5 mass on average, exhibiting a clear decreasing gradient from North and East to the South and Southwest
China,. It was evident that nitrate and ammonium concentrations, and the mass ratio of NO3¨C to SO42¨C increased constantly during recent years. Organic material was a relatively constant and significant contributor to PM2.5 mass across China, accounting for
15¨C51%. Due to transported desert dust, local soil dust and construction activities, high content of crustal material occurred mainly in Northwest China. The fraction of EC in PM2.5 mass ranged from 2% to 12% with an average value of 6%. A clear decline trend
for EC mass was found in several mega cities, such as Beijing, Chongqing, and Shanghai.
1. Please join my meeting.
https://global.gotomeeting.com/join/345113213
2. Use your microphone and speakers (VoIP) - a headset is recommended. Or, call in using your telephone.
Dial +1 (647) 497-9372
Access Code: 345-113-213
Audio PIN: Shown after joining the meeting
Meeting ID: 345-113-213
GoToMeeting®
Online Meetings Made Easy®
Not at your computer? Click the link to join this meeting from your iPhone®, iPad®, Android® or Windows Phone® device via the GoToMeeting app.