Publications by authors named "Xijing Sun"
Secondary organic aerosol (SOA) accounts for a large fraction of fine particulate matter (PM), but the lack of vertical observations of SOA in the urban boundary layer (UBL) limits a comprehensive understanding of its sources and formation mechanisms. In this study, PM samples were simultaneously collected at 3 m, 118 m, and 488 m on the Canton Tower in Guangzhou during winter. Typical SOA tracers, including oxidation products of isoprene (SOA), monoterpene (SOA), sesquiterpene (SOA), and toluene (ASOA), were investigated alongside meteorological parameters and gaseous/particulate pollutants.
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- Macleaya cordata shows potential for phytoremediation due to its high tolerance to heavy metals.
- The study analyzed the plant's response to lead (Pb) toxicity by examining differences in gene and protein expression before and after Pb treatment.
- Key findings include upregulated genes related to iron transport, downregulated calcium-binding proteins, and altered glutathione metabolism, indicating the plant's complex mechanisms to manage Pb accumulation and maintain cellular functions.
Heavy metal pollution possesses potential hazards to plant, animal and human health, which has become the focus of recent attention. Hence, phytoremediation has been regarded as one of the most important remediation technologies for heavy-metal-contaminated soils. In this research, a dominant mine tailing plant, , was used as the experimental material to compare the metal transport and oxidative stress response in its roots under lead (Pb) and zinc (Zn) treatments.
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