Wu H W, Chan L Y
Department of Applied Science, Hong Kong Institute of Vocational Education (Chai Wan), People's Republic of China.
Environ Int. 2001 Apr;26(4):213-22. doi: 10.1016/s0160-4120(00)00108-2.
Ozone trends in Hong Kong were assessed from the ozone data recorded at three urban stations and one station in the new development area. Three parameters were selected as the robust trend indicators in the study: monthly mean, monthly averaged daily 1-h maximum, and number of annual hours > 120 microg m(-3). As the ozone data displayed obvious seasonal variation, using deseasonalized monthly average parameters to estimate the ozone trends could smooth out the influence of seasonal fluctuations. The detection of an increase of more than 10% per year in ozone concentration at one station was particularly alarming. Effects of meteorological factors, control programmes of ozone precursors, and long-range transport on the ambient ozone level were examined in the study.
通过三个市区监测站和一个新开发区监测站记录的臭氧数据，对香港的臭氧趋势进行了评估。本研究选择了三个参数作为稳健的趋势指标：月均值、月平均日1小时最大值以及年度小时数>120微克/立方米的天数。由于臭氧数据呈现出明显的季节变化，使用去季节化的月平均参数来估计臭氧趋势可以消除季节性波动的影响。在一个监测站检测到臭氧浓度每年增加超过10%，这尤其令人担忧。本研究还考察了气象因素、臭氧前体控制方案以及长距离传输对环境臭氧水平的影响。
Zotero 插件