Abstract
ABSTRACT Dissolved organic matter (DOM) plays a crucial role in various aquatic environments, while comprehensive insights into DOM and its relations with heavy metals in drinking water sources are still lacking. Here, we choose the drinking water sources of Anhui province (China) as a typical case, exploring the occurrence of DOM and its relationship with heavy metals in 159 major drinking water sources. Results indicate the occurrence levels of DOM and three identified fluorescent components in the surface water (rivers, lakes, reservoirs) are significantly higher than that in the groundwater, while there was no significant difference in the occurrence levels of the chromophoric dissolved organic matter (CDOM) among the drinking water sources. Significant correlations between the DOM and heavy metals indicate that DOM could be used as a promising indicator for evaluating the occurrence and environmental behavior of some heavy metals in drinking water sources.
Published Version
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