The amount of lead in the blood and tissues, as well as the time course of exposure, determine toxicity. Lead poisoning may be acute (from intense exposure of short duration) or chronic (from repeat low-level exposure over a prolonged period), but the latter is much more common.
The COO is responsible for the daily operation of the company, and routinely reports to the highest ranking executive, usually the chief executive officer (CEO). The COO is usually the second in command at the firm, especially if the highest ranking executive is the Chairman and CEO.
Chief Operating Officer - COO. Loading the player... What is a 'Chief Operating Officer - COO'. A chief operating officer (COO) is the senior manager who is responsible for managing the company's day-to-day operations and reporting them to the chief executive officer (CEO). A company needs a chief operating officer (COO) because the CEO is usually too busy to monitor production quotas and other factors on a daily basis. Next Up.