ABSTRACT
Heavy metals are ubiquitous pollutants, which are difficult to degrade in the environment. Thus, they can keep on accumulating in the environment and biota. Heavy metals in soil and surface water of Gudong river wetland were investigated using ICP-MS, and levels, distributions, and health risk were evaluated. Results showed that Arsenic (As) was above the warning line in 60% of the soil samples and was generally in a clean state. The level of heavy metal pollution in surface water is at a safe level. Heavy metals pose a higher non-carcinogenic risk to children than adults. Children's body is not fully developed, which affects the detoxification ability of the body, making it more sensitive to toxic and harmful substances, but there is no non-carcinogenic and carcinogenic risk of heavy metals. Principal component analysis showed that the sources of heavy metals in the soil of Gudonghe wetland were similar to those in the soil near Tianbao Mountain, while the sources of heavy metals in the surface water were close to that of atmospheric particulate of Yanji city.
