Environmental quality evaluation in Dhaka City Corporation - using satellite imagery

摘要

Urban green spaces are the indispensable component in city landscaping for realising a healthy living environment (HLE). The environmental quality was assessed in the Dhaka City Corporation (DCC) area, Bangladesh, by means of the existing green spaces, population density and air-quality mapping. This study revealed that Uttara, Mirpur 10, Kazipara, Darussalam, Shukrabad, Razabazar and the old city of Dhaka are the most significant environmentally critical areas. Also, it revealed that only six wards out of 92 wards of the DCC area (within the administrative boundary) met the per capita green spaces as per the standards of the World Health Organization (9?m~(2) per person) and the rest of the 86 wards required improvement of green areas. A green space plan map was also generated, which will be able to direct strategic options of the city's land-use planning to ensure an HLE. Information technology will provide valuable information about the management and implementation of new greenery development projects by DCC, Rajdhani Unnayan Karthipakaha and other voluntary organisation.