There are several environmental factors that can reduce the liveability of a place. These include natural hazards, conflicts, population pressures, and land degradation. Pollution and overconsumption of resources also negatively impact liveability by reducing air and water quality. Choosing a city to analyze, factors like the population size, maps showing location, and pictures depicting characteristics help to understand the context. Air and water quality issues are evaluated based on measurements of particulate matter and other chemicals. Specific sources of pollution are identified and recommendations are provided on improving environmental conditions.