2020同步年報

A ir, soil and water on our planet are much contaminat- ed through over-industrial development. Continuing lives are so crucial, and strongly connected to the vital me- dium in the environment; nevertheless, all human beings are threatened by the counterattack from an environment worse than ever before after the enjoyment of ease and comfort resulting from industrial development. The grand challenges for Earth and environmental issues focus on the vital elements in a sustainable environment for life itself, in- cluding air, soil and water, especially those elements related to dangerous air quality induced by PM 2.5 , PM 2.5 -associated metals, and the soil and aquatic media contaminated with heavy metal ions. Synchrotron-based technology provides opportunities to resolve the questions induced or stimu- lated by the consequences of industrial activity. Dedicated beamlines of NSRRC provide a semi-coherent and ultra-bright light source for identification of func- tional groups, elemental analysis, elemental oxidation states, elements in varied chemical structure sites, and spatially resolved confocal IR spectral imaging and X-ray 3D tomographic imaging with micrometre and nanometre resolution, respectively. The dedicated end-stations of syn- chrotron-based X-ray diffraction at TPS 09A , X-ray nano- diffraction at TPS 21A , transmission X-ray microscopy at TLS 01B1 , extended X-ray-absorption fine-structure (EXAFS) spectroscopy at TLS 01C1 , tender X-ray absorption and diffraction at TLS 16A1 , X-ray absorption near-edge structure and EXAFS at TLS 17C1 and IR microscopy at TLS 14A1 are advanced technologies to analyze chemical elements or functional groups of chemical substances and to provide IR 2D-spectral imaging and X-ray phase-contrast 3D-tomographic imaging for environmental contamination targets and remnants. (by Yao-Chang Lee) Environ- mental and Earth Science