earticle

영어

It is of great concern how the chemical composition and cycles of the troposphere change through time in response to natural and anthropogenic perturbations. There is unequivocal evidence that the concentrations of many environmentally important chemical species are increasing in the troposphere as a result of human activity (IPCC, 2007). Changes in atmospheric composition directly affect human health, air quality, and climate at local to global scales.
To predict the tropospheric responses to perturbations, it is essential to understand the global distribution and abundance of trace gases including carbon, nitrogen, sulfur and halogen compounds. These are dependent on available oxidants in the atmosphere (e.g., O3, OH, and H2O2) and vice versa. Their levels may be changing because of changes in the level of pollutants such CO, CH4, NOx, SO2, and and various hydrocarbon compounds. While these pollutants are oxidized, O3 and fine aerosols are produced, which are relevant to air quality and climate change issue.
Therefore, the primary challenge is to understand the air pollutants-atmospheric chemistry-climate interaction. Accordingly, atmospheric composition change research is fundamental for the future sustainability of the Earth's environment and in turn, implementing relevant strategy to abate ozone and aerosol levels, control emissions, and introduce new technologies such as hydrogen fuel and fuel cells.