A5089196710- Mercury impact and mitigation studies
- Toxic Organic Pollutants Impact
- Soil and Unsaturated Flow
- Climate change and permafrost
- Atmospheric chemistry and aerosols
- Analytical chemistry methods development
- Smart Materials for Construction
- Heavy metals in environment
- Mass Spectrometry Techniques and Applications
- nanoparticles nucleation surface interactions
- Water Treatment and Disinfection
- Air Quality and Health Impacts
New Jersey Institute of Technology
2020-2023
Jilin University
2016-2017
The knowledge of speciation gaseous oxidized mercury (GOM) is crucial for understanding the atmospheric chemistry and global cycle. Because low abundance GOM, its chemical analysis requires preconcentration often involves use collection substrates, such as KCl, various adsorbents, or membranes. GOM molecules adsorbed on substrates can exchange ligands with substrate material, each other, other coadsorbed chemicals, altering composition ultimately leading to biases. Here, we investigated...
Gaseous oxidized mercury (GOM) is a major chemical form responsible for deposition of atmospheric mercury, but its interaction with environmental surfaces not well understood. To address this knowledge gap, we investigated the uptake gaseous HgCl2, used as GOM surrogate, by several inorganic salts representative marine and urban aerosols. The process was studied in fast flow reactor coupled to an ion drift–chemical ionization mass spectrometer, where HgCl2 quantitatively detected HgCl2·NO3–....
Uptake by atmospheric aerosols is an important step in the deposition and photoreduction of gaseous oxidized mercury (GOM). The contain a broad range inorganic organic constituents whose reactivity toward GOM still inadequately quantified. Recently, we investigated uptake surfaces, finding significant dependence on surface composition. Here, report films made chemicals mimicking common carbonaceous aerosols. Primary combustion were represented soot, levoglucosan, polycyclic aromatic...