I am Wong Wing Mei, currently working at the Environmental Protection Department of the HKSAR Government (EPD). I love the beautiful landscape and enjoy delicious food. I believe we should do something to conserve these valuable treasures given by the nature. I studied BSc in Chemical Technology as my bachelor degree program. My final year project is about PM2.5 analytic method which is a hot topic at that time. Afterwards, I worked at commercial laboratories and then joined EPD at 2017. To keep up with the latest technology, I continued my study and graduated from MSc in Environmental Management and Engineering 4 years ago. Technology changes so fast, LiDAR is developed to observe air pollutants under wind environments. Therefore, I am keen to attend the workshop and know more about it.