JpGU-AGU Joint Meeting 2017

Presentation information

[EE] Poster

A (Atmospheric and Hydrospheric Sciences) » A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS05] [EE] Contributions of local and long-range transport to air pollutants in mega-cities

Thu. May 25, 2017 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall HALL7)

convener:Hongliang Zhang(Louisiana State University), Jianlin Hu(NUIST Nanjing University of Information Science and Technology), Sri Harsha Kota(Indian Institute of Technology Guwahati), Jia Xing(Tsinghua University)

[AAS05-P02] Regional contributions to primary and secondary inorganic components of particulate matter in India

*Sri Harsha Kota1, Hao Guo2, Jianlin Hu3, Qi Ying4, Hongliang Zhang3,2 (1.IIT Guwahati, 2.Louisiana State University, 3.NUIST, 4.TAMU)

Keywords:Particulate matter, Source apportionment, Regional transport, India

Source-oriented versions of the Community Multiscale Air Quality (CMAQ) model were used to estimate the contributions of different sources and regions to primary and secondary inorganic components (including elemental carbon, organic carbon, sulfate, nitrate, and ammonia) of particulate matter (PM) in India using Emission Database for Global Atmospheric Research (EDGAR) and Weather Research & Forecasting (WRF) model for meteorological inputs. The whole year 2015 was simulated with emissions grouped to seven sectors and nine regions. Seasonal variations in contributions of different sources and regions to major cities in Delhi were analyzed. Results indicate that while residential burning was the dominant source of PM during winter, open burning dominated during pre-monsoon. The source-region analysis indicates that Haryana-Punjab, Rajasthan, Haryana-Punjab and Uttar Pradesh regions were contributing to major fractions of primary and secondary inorganic PM in Delhi during winter, pre-monsoon and post-monsoon seasons.