Rainwater chemistry observation in a karst city: variations, influence factors, sources and potential environmental effects.

ABSTRACT: The rainwater chemistry and related air contaminants are used to investigate the rainwater ions sources, variations, and influence factors from 2012 to 2014 in Guiyang city (the typical karst urban area of Southwest China). According to temporal rainwater ion concentrations, the obvious variations were presented in the study period, such as Ca²⁺ (125∼6,652 μeq L^-1) and SO₄ ^2- (11∼4,127 μeq L^-1). Consequently, Ca²⁺, Mg²⁺, SO₄ ^2- and Cl^- are considered as the leading ions. Three critical influencing factors of rainwater ions concentrations, including sources variations, rainfall amount and long-distance migration (rainfall amount > 100 mm) are identified. Based on the typical ionic r

SUBMITTER: Zeng J 

PROVIDER: S-EPMC8065247 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature