The criterion level, often abbreviated as Lc, is the steady noise level permitted for a full eight-hour work shift. This is 85 dB(A) in most jurisdictions, but it is 90 dB(A) in Quebec and 87 dB(A) for organizations that follow the Canadian federal noise regulations.
Royal Catchfly (Silene regia) This striking plant may grow as high as five feet, with bright red flowers. It flowers from May through September, and can be seen in remnant prairies and open woods. In Missouri, it is known only in the Ozarks.
July 29, 2009 at 7:15am. The shimmering Lake of the Ozarks in Central Missouri is a major attraction for those who enjoy boating, fishing, swimming and skiing. However, especially with the rise of eco-tourism, thousands of visitors come to the Lake of the Ozarks area to explore its many miles of hiking and biking trails.