According to the Gallup Surveys on water and air satisfaction, 96 percent of Danes and Swedes, and 94 percent of Finns are satisfied with quality of their water. Singapore is the only nation in Asia in which 95 percent of residents are satisfied with water quality.
Conducted by telephone and interviews with 1,000 adults aged 15 and older in more than 140 countries in 2011, the Gallup Survey result shows that 75 percent of adults worldwide are satisfied with their air quality while 68 percent are satisfied with water quality. Median satisfactions for both air and water quality are relatively high and roughly the same in European countries.
Among the top ten countries that residents are most satisfied with quality of water are Denmark, Sweden and Finland. Singapore is the only country in Asia on the top-ten list where 95 percent of the residents are satisfied with water quality. Brits are most satisfied with their quality of water which represents 97 percent.
Perceived water quality is generally lowest in sub-Saharan Africa, the Middle East, and countries that were formerly in the Soviet Union. Seven of the 10 countries where residents are least satisfied are in sub-Saharan Africa, where residents sometimes have to walk miles for water, and waterborne and water-related diseases such as cholera are common. Congolese are the least likely in the world to be satisfied with their water, with roughly one in four satisfied.
Countries where adults are satisfied with the quality of the air span across Europe and Asia, with satisfaction nearly universal in highly developed countries such as Ireland (95 percent). But there is still a wide range of perceptions of air quality within each region. Residents of Hong Kong are least satisfied with their air quality while residents of city-state Singapore are among the most satisfied.
