For much of the next 50 percent on the nineteenth century and effectively into your 20th, ozone was regarded as a wholesome element from the environment by naturalists and health-seekers. Beaumont, California, had as its official slogan "Beaumont: Zone of Ozone", as evidenced on postcards and Chamber of Commerce letterhead.[seventeen] https://lukasdimqu.wikilinksnews.com/5411787/indoor_air_quality_improvement_an_overview