Seminar

Abstract

This talk presents an overview of results obtained at a recently developed regional background site, the Station for Observing Regional Processes of the Earth System (SORPES), in the western part of the Yangtze River Delta (YRD) of China. The SORPES site located in suburban and upwind area of Nanjing and downwind of the YRD city cluster and the polluted North and East China. It is an ideal site to address regional air quality issues in the East China. The site was collaborated with Prof. Markku Kulmala’s group at University of Helsinki. Since 2011, ozone and its related traces gases, mass and numer concentrations, chemical compositons and optical properties of particular matter were continuously measured at this site. Also, several campaigns were conducted to address the photochemical pollution in spring, biomass buring in summer, and haze pollution in Autumn in this region. This talk will give a summary of main results obtained at this site, including temporal varaitons ozone and fine particle, new particle formation and growth, sources and impact of HONO, and air pollution-weather interactions based on measurement and modeling. Also, the future roles of SORPES in the latestly launched national key programs on air pollution in China and in the framework of iLEAPS and PEEX program will be introduced.