This sampling campaign is led by Professor Hai Guo from The Hong Kong Polytechnic University (HK PolyU) in collaboration with the Sun Yat-Sen University, National Central University, Queensland University of Technology, Ji’nan University and Hong Kong University of Science & Technology. It is being conducted simultaneously at two sites: a sub-urban site in Tung Chung, Hong Kong and a rural island site in Zhuhai, China. The measurements include canister sampling, real-time monitoring of weather conditions, trace gases, volatile organic compounds (VOCs) as well as other precursors of photochemical ozone production. This will be followed by a comprehensive analysis of the chemical database using a combination of statistical analysis of field observations, mesoscale meteorological simulations, diagnostic and prognostic box models, for example, an observation-based box model, an emission-based model, and chemical transport models. The proposed study will significantly improve our understanding of photochemical formation and transport mechanisms for subtropical coastal regions with complex coupling of meteorology and chemistry, and will advance our knowledge of the atmospheric chemistry in the marine boundary and have wide implications for other subtropical coastal regions. The scientific findings will have direct policy implications for reducing O3 pollution and visibility degradation in subtropical South China.  View more photos

香港空气质量监测，2016年9月至11月

该项抽样活动由香港理工大学郭海教授与中山大学，中央大学，昆士兰科技大学，暨南大学和香港科技大学合作完成。在两个地点同时进行：在香港东涌的一个郊区地点和在中国珠海的一个农村岛屿。测量包括罐式取样，天气条件的实时监测，痕量气体，挥发性有机化合（VOC）以及光化学臭氧产生的其他前体物。这之后将综合分析化学数据库，使用现场观测，中尺度气象模拟，诊断和预测箱模型的统计分析，例如基于观测的箱模型，基于排放的模型和化学品运输模型。所提出的研究将大大提高我们对具有气象和化学的复杂耦合的亚热带沿海地区的光化学形成和运输机制的理解，并将提高我们对海洋边界大气化学的认识，并对其他亚热带沿海地区有广泛的影响。科学发现将对减少亚热带华南地区的臭氧污染和可见度产生直接的政策影响。查看更多照片