TOPIC INSIGHT • 專題探討 2021 UMAGAZINE 24 • 澳大新語 38 pollutants such as ozone and secondary particulate matter during the atmospheric oxidation processes.’ He adds: ‘We can feed different precursors into the reactor and observe the changes in the air after the oxidation of harmful and non-harmful substances, and then develop solutions to improve air quality. We are also working with the Environmental Protection Bureau and the Meteorological and Geophysical Bureau to analyse the state of air pollution in Macao over the years and how it has changed before and after the implementation of some control measures. We will also set up a monitoring station on the UM campus to study the chemical constituents of air pollutants in Macao and their transformation mechanism, using both real-time and offline analysis, in order to make recommendations for improvement measures.’ Water quality has a direct impact on our daily lives. Prof Li explains: ‘The salinity of Macao's coastal sewage is relatively high, so our colleagues are also studying how to effectively treat high-salinity wastewater, including how to recover resources for fertiliser and other useful substances from the sludge produced during the wastewater treatment process. We also monitor water quality on a regular basis. Macao's water mostly comes from Zhuhai, and we will also work with neighbouring research institutes to monitor the changes in water quality in the region to ensure that Macao's water meets drinking water standards.’ Marine Disaster Prevention and Control Typhoons and rainstorms in Macao and neighbouring regions often result in loss of life and property. So Marine Environment and Ecology The university is also conducting research on atmospheric pollutant detection, experimentation, and modelling, such as real-time online monitoring of atmospheric pollutants, laboratory simulations of atmospheric physical and chemical processes, development of an adaptive air quality prediction model and an all-in-one air quality modelling system, as well as research on water quality monitoring, sewage treatment, and water resources. Associate Professor Li Yongjie of the Department of Civil and Environmental Engineering says: ‘Macao is located in the west of the Greater Bay Area, and we are studying the emission and transformation of pollutants in the atmosphere, water bodies, and other ecosystems, as well as observing the migration and transformation of pollutants in Macao due to the influence of maritime air masses. In recent years, we have also been working with organisations across the Greater Bay Area to obtain more accurate data on air pollution and water quality in order to identify the root causes of major environmental problems and provide recommendations to address them. To make a real difference to the environment and ecology, Macao cannot do it alone; it must work in partnership with all parties.’ Air flow and air quality in Macao and other coastal areas are heavily influenced by the sea. ‘We can introduce new monitoring stations and instruments to more effectively detect the chemical constituents of air pollutants such as fine particles and volatile organic compounds,’ says Prof Li. ‘Our team has used oxidation flow reactors to simulate the main precursors and reaction conditions for secondary 周萬歡教授（右） Prof Zhou Wanhuan (right) 黎永杰教授（右二） Prof Li Yongjie (2nd from right)
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