Characterization of Winter Haze Episodes and Their Formation Mechanism in Guilin, China

L. S. Zhang, S. Zhong, J. Du, Y. S. Li

2018

Abstract

Three heavy haze pollution episodes could be observed in Guilin in winter. The sources and evolutionary mechanisms of the haze pollution episode that occurred from December 23, 2014 to February 10, 2015 were analyzed. The meteorological parameters and daily concentrations of PM2.5, sulfate, nitrate, and ammonium were measured. The results showed that the mass concentrations of the sulfate, nitrate, and ammonium increased with increasing PM2.5 levels. Sulfate was the most abundant secondary water-soluble inorganic species, which contributed to about 20% of the PM2.5 mass concentration. The catalytic oxidation of SO2 to SO42- in the presence of NOx and Ca2+ played a considerable role on the severe winter haze episodes in Guilin.

Paper Citation

in Harvard Style

Zhang L., Zhong S., Du J. and Li Y. (2018). Characterization of Winter Haze Episodes and Their Formation Mechanism in Guilin, China.In Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE, ISBN 978-989-758-344-5, pages 291-296. DOI: 10.5220/0007560102910296

in Bibtex Style

@conference{iwemse18,
author={L. S. Zhang and S. Zhong and J. Du and Y. S. Li},
title={Characterization of Winter Haze Episodes and Their Formation Mechanism in Guilin, China},
booktitle={Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE,},
year={2018},
pages={291-296},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007560102910296},
isbn={978-989-758-344-5},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE,
TI - Characterization of Winter Haze Episodes and Their Formation Mechanism in Guilin, China
SN - 978-989-758-344-5
AU - Zhang L.
AU - Zhong S.
AU - Du J.
AU - Li Y.
PY - 2018
SP - 291
EP - 296
DO - 10.5220/0007560102910296