"ambient air quality"@en . . . . "The quality of outdoor air in our surrounding environment. It is typically measured near ground level, away from direct sources of pollution."@en . . "0001-01-01T00:00:00"^^ . "British Columbia, 'What is Air Quality?' http://www.bcairquality.ca/101/what-is-air-quality.html[16.7.2015]"@en . . "0001-01-01T00:00:00"^^ . . .