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Kowloon Central 3D map launched

The Lands Department today launched the 3D Visualisation Map dataset of Kowloon Central and an online application platform Open3Dhk for the public to use free of charge.   To tie in with the development of a smart city, the department started the production of a citywide 3D Visualisation Map in 2021 for release in phases. The first 3D Visualisation Map covering Kowloon East was launched in December 2022.   The Kowloon Central 3D map released today comprises around 9,500 buildings and about 210 individual models of infrastructures, including flyovers, footbridges and subways. It can be downloaded through the Common Spatial Data Infrastructure portal.   Open3Dhk, an online platform transforming a variety of spatial data into user-friendly applications which can support diverse uses by the public, the academia and professionals was also launched today.   Through the interactive functions on the platform, users can view photorealistic 3D city models of Kowloon East and Kowloon Cent
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Delta air quality better

The air quality in the Pearl River Delta has continuously improved in recent years, the Guangdong-Hong Kong-Macao Pearl River Delta Regional Air Quality Monitoring Network reported.   The network released a report on its 2020 monitoring results today.   According to the report, the average annual concentration levels of pollutants decreased in the delta region compared with 2006. This includes an 86% drop in sulphur dioxide, a 49% reduction in respirable suspended particulates and a 43% decrease in nitrogen dioxide.   Compared with 2015, the average annual concentration levels of carbon monoxide and fine suspended particulates also fell 16% and 31%.   On the other hand, the average annual concentration level of ozone rose 27% when compared with 2006, indicating the need to further alleviate regional photochemical pollution.   Hong Kong and Guangdong have long been committed to reducing air pollutant emissions from key sources to improve regional air quality. The two governments are conducting a study on post-2020 regional emission reduction targets and concentration levels to formulate targets or levels in 2025 and 2030.   Additionally, the governments of Guangdong, Hong Kong and Macau will launch a three-year study on the characterisation of photochemical ozone pollution in the Guangdong-Hong Kong-Macao Greater Bay Area and its regional and super-regional transportation.   The study results will help people better understand the origins of ozone precursors, their formation mechanism and regional and super-regional transportation characteristics in the bay area.   The monitoring network, launched in 2005 and comprising 23 air monitoring stations in the three jurisdictions, monitors six major air pollutants.
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