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Spatial and Temporal Trends of Air Quality around Dhaka City: A GIS Approach

An Air Quality Index (AQI) is an index used to describe how polluted the air currently is or how polluted it is forecast to become. People's health risks increase as the air quality index (AQI) rises. Particulate and gaseous pollutant emissions from industries and auto-exhausts are responsible for rising discomfort, increasing airway diseases, decreasing productivity, and the deterioration of artistic and cultural patrimony in urban centers. Understanding the temporal and spatial distribution of air quality at the landscape scale is essential in assessing the potential ecological conditions for ecological restoration and making regional management decisions. Keeping the air quality acceptable has become an essential task for decision-makers as well as for non-governmental organizations. Corresponding to different regional air quality standards, different Dhaka regions would have their air quality index. This study's main purpose is to analyze the concentration data of air quality parameters in ambient air of Dhaka and visualize the trends of the major concentrations of the air parameters through ArcGIS.

Author(s): Rahaman MO,  Roksana K, Mukit M and Rahaman MM

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