Social class in the United Kingdom assemblers and routine operatives, care workers, elementary storage occupations, customer service occupations, and musicians. The precariat, about 15% of British society, shows poor economic capital, and the lowest scores on every other criterion. Typical occupations include cleaners, van drivers, care workers, carpenters and joiners, caretakers, leisure and travel service occupations, shopkeepers and proprietors, and retail cashiers. The term "underclass" is used to refer to those people who are "chronically unemployed", and in many instances have been for generations. Typical characteristics are: There is a contention that there are homologies between the meaning context and tenor of the abusive popular word
Lowest-observed-adverse-effect level Lowest-observed-adverse-effect level The lowest-observed-adverse-effect level (LOAEL) is the lowest concentration or amount of a substance found by experiment or observation that causes an adverse alteration of morphology, function, capacity, growth, development, or lifespan of a target organism distinguished from normal organisms of the same species under defined conditions of exposure. Federal agencies use set approval standards below this level. The United States Environmental Protection Agency defines LOAEL as the 'lowest level of a chemical stressor evaluated in a toxicity test that shows harmful effects on a plant or animal. While LOAELs and LOAECs are similar, they are not interchangeable. A