The permissible exposure limit (PEL or OSHA PEL) is a legal limit in the United States for exposure of an employee to a chemical substance or physical agent.For chemicals, the chemical regulation is usually expressed in parts per million (ppm), or sometimes in milligrams per cubic meter (mg/m 3). short-term exposure limit is one that addresses the average exposure over a 15-30 minute period of maximum exposure during a single work shift.
Abraham Lincoln became the United States' 16th President in 1861, issuing the Emancipation Proclamation that declared forever free those slaves within the Confederacy in 1863.
So hereâs the gist of what Limbaugh was saying. Historians routinely rank Abraham Lincoln as one of our greatest presidents, even though he took many more gross liberties with the Constitution than George W. Bush. Limbaughâs conclusion: Bush is a great president too. My conclusion: maybe Abraham Lincoln wasnât such a great president either. Consider some of the things olâ Honest Abe and his administration did during his time in office: He appointed generals and war planners so ineffectual they make Donald Rumsfeld look like frickinâ Sun Tzu.