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.
What does a Chief Financial Officer (CFO) do? f you asked any company's CFO this question, you would probably be in for a three-hour conversation. But the core duties can be summarized in just a few paragraphs. 1. Controllership duties - These make up the backward looking part of a CFO's job. Controllership duties hold the CFO responsible for presenting and reporting accurate and timely historical financial information of the company he or she works for.