Assessment of heavy metal contamination and health risks in urban road dust and green belt soil: a case study in Harbin City, China.

Heavy metals present in road dust and green belt soil can be resuspended into the air due to external forces, which may contribute to potential human health risks. To examine the occurrence and potential exposure of heavy metals in urban environments, this study analyzed contamination levels of 16 heavy metals in 114 road dust samples and 78 green belt soil samples from various road types in Harbin City, China, using inductively coupled plasma atomic emission spectrometry (ICP-AES). The results indicated that Fe and Ba exhibited the highest concentrations in both dust and soil, with heavy metal levels in road dust being similar to those in green belt soil, possibly suggesting a shared geological background and influence from human activities.

Amine antioxidants in water, ice, sediment and soil from the Songhua Wetland, Northeast China: Occurrence and fate.

Amine antioxidants (ANs) are emerging organic pollutants that are widely used in industrial products. The extensive use of ANs has polluted the environments. At present, there is no report on the pollution situation of ANs in wetland environment.

Screening and quantification of pesticides in wetland water, ice, sediment and soil: Occurrence, transport and risk assessment.

Current researches on pesticides in wetlands are limited in terms of screening and quantification of many types of pesticides. Understanding the spatial and temporal dynamics, distribution patterns, and environmental risks of pesticides in multiple media is important for wetland ecological conservation. In this study, 222 pesticides were determined in multimedia samples collected simultaneously from the Songhua Wetland during four seasons.