Probably what others have warned about before: that indoor air pollution can be 100 times the level of outdoor air pollution — and it can come from some pretty surprising sources. (treehugger.com)
More than two million deaths occur worldwide each year as a direct result of human - caused outdoor air pollution, a new study has found. (sciencedaily.com)
Indoor air quality in school buildings is affected by outdoor air pollution, building characteristics and operation and management practices, including cleaning, maintenance, and ventilation. (sciencedaily.com)