JAUE2018-079 Chemical Characteristics of Snowfall in a Snow Season in Changchun City

Abstract

Snow is an important part of the winter frigid ecosystem and is also the precipitation formed by the condensation of water vapor in the atmosphere. In high latitudes and high altitudes, snow accounts for more than 75% of the annual precipitation. Therefore, snow is one of the important processes in the atmospheric cycle and one of the most active natural elements on the Earth's surface. Snow is a highly sensitive indicator of global climate change. During the winter snowfall period of 2017-2018, this paper collected snowfalls from different functional areas (residential areas, commercial areas, industrial areas, and suburbs) in the Horqin District of Tongliao City, Inner Mongolia. This study analyzes the basic physical and chemical properties of snow and discusses its spatial and temporal trends. A preliminary analysis of snowfall pH, conductivity, and total organic carbon (TOC) was conducted. This research aims to understand the chemical characteristics of snowfall in Changchun City of Jilin Province and its temporal and spatial changes, providing theoretical support for environmental pollution prevention and control.