Word: microgram
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...team visited 15 Indian specialty stores in the Boston area and purchased 71 cultural powders and 86 spices and food products. About 25% of the food items, including spices such as cardamom, fenugreek and chili powder, contained more than 1 microgram of lead per gram of product. About 65% of the ceremonial powders, including sindoor, which is used as a symbol of marriage, contained the same amount. Those levels are below the E.U.'s acceptable threshold of 2 to 3 mcg/g of lead, but the study's authors say that regardless of the amount, the presence of lead in these...
...left untreated can lead to death. Immunotherapy is designed to build up the body's tolerance to such "toxins" by gradually increasing patients' exposure to them over several weeks or months, says Hugh Sampson, who runs the Jaffe Food Allergy Institute at Mount Sinai. "We start at the microgram level, scale up to milligrams and may end with grams [of peanuts]," says Sampson, but he warns people not to try the program at home. "Every patient has an adverse reaction when we increase the dose," and in severe cases, the patient may need immediate medical attention. (See how to prevent...
...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...