Effects of tropical cyclone on air pollution in Hong Kong

dc.contributor.authorLi, Tuonan
dc.contributor.supervisorAtkinson, David
dc.date.accessioned2020-05-06T04:51:27Z
dc.date.available2020-05-06T04:51:27Z
dc.date.copyright2020en_US
dc.date.issued2020-05-05
dc.degree.departmentDepartment of Geographyen_US
dc.degree.levelMaster of Science M.Sc.en_US
dc.description.abstractClimate and weather play a significant role in patterns of air pollution occurrence and severity. An analysis of the effect of weather on pollution parameters in Hong Kong was performed. Hong Kong is one of the world's most densely populated regions and air pollution can be problematic, which is a serious public health concern. Hong Kong is impacted by Tropical Cyclones which strongly affect weather patterns. In this research, a twelve-year record (2007-2018) of tropical cyclone (TC) and pollutant concentrations (carbon monoxide, ground-level ozone, nitrogen dioxide, sulfur dioxide, and particulate matter) were analyzed to investigate the effects of TC on air quality. It is found that the occurrences of TC are strongly related to days with elevated particulate matter, sulfur dioxide and carbon monoxide concentrations (above 90th percentile), and low concentrations (below the 10th percentile) for nitrogen dioxide. In particular, the spatial location of TC with respect to Hong Kong is found to be clearly associated with high or low pollutant concentrations. When the TC is located to the North/Northeast of Hong Kong, the air quality tends to be poor because polluted air from mainland China is advected over the city. Conversely, TC located to the West resulted in good air quality by ventilating the city with relatively clean air from the ocean.en_US
dc.description.scholarlevelGraduateen_US
dc.identifier.urihttp://hdl.handle.net/1828/11731
dc.languageEnglisheng
dc.language.isoenen_US
dc.rightsAvailable to the World Wide Weben_US
dc.subjectTropical cycloneen_US
dc.subjectAir pollutionen_US
dc.subjectTyphoonen_US
dc.subjectWest Pacificen_US
dc.subjectHong Kongen_US
dc.titleEffects of tropical cyclone on air pollution in Hong Kongen_US
dc.typeThesisen_US

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