Word: microgram
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Dates: during 2000-2009
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...reasons curbing pollution can have so immediate an effect is that even a little dirt can do a lot of damage. A reduction of just 10 micrograms (10 millionths of a gram) of pollution per cubic meter of air - a degree of improvement many of the surveyed cities were able to attain during the two-decade-plus period - could extend human lifespans a full nine months. How small is 10 micrograms per cubic meter? Consider that simply by living with a cigarette smoker, you're exposed to a daily dose of 20 to 30. Pittsburgh, Pa., is one city...
...American Lung Association, the new rules "leave far too many people at risk of serious harm - even premature death - from breathing unhealthy, polluted air." The Lung Association, the American Medical Association, the American Academy of Pediatrics and the American Heart Association all favor a daily standard of 25 microgram per cubic meter of air for fine particles and an annual limit of 12 micrograms per cubic meter...
Here’s a typical example: Last summer the Center for Disease Control’s Advisory Committee on Childhood Lead Poisoning Prevention was preparing to consider a reduction in the level of blood lead necessary for a diagnosis of lead poisoning. The level was set at 10 micrograms per deciliter, but studies had recently indicated that lead levels of five micrograms per deciliter were still harmful to children. Before the standard could be reconsidered, however, two highly qualified scientists, whose nominations had been pending, were rejected from the committee, and another well-regarded expert was removed. They were...