It takes 1000 grams to make a kilogram, so that means a microgram is a billionth of a kilogram.    From Wordnik.com.  [Web Teacher › The Kilogram: Just a Little Off] Reference

A microgram is a millionth of a gram; a deciliter is one-tenth of a liter.    From Wordnik.com.  [For many kids, lead threat is right in their own homes] Reference

A microgram is about one millionth of a gram.    From Wordnik.com.  [Web Teacher › The Kilogram: Just a Little Off] Reference

Tablet of 0.25 mg (= 250 microgram = 250 mcg = 250 ug).    From Wordnik.com.  [Chapter 4] Reference

Trouble is, I don't think there's a microgram of data to back that up.    From Wordnik.com.  [Just a little off the top, thanks] Reference

Man, it took every microgram of will power in my little pink body to keep out of it.    From Wordnik.com.  [Another Roadside Attraction]

Concentrations of 300 to 500 microgram/m3 were typical in European cities 40 years ago.    From Wordnik.com.  [Impact of local air pollution] Reference

Drinking water from Ushirombo (Kahama District) measured 0.106 microgram per litre, the lowest.    From Wordnik.com.  [Chapter 4] Reference

It was balanced to a microgram, to a millionth of the combined weight of three aspirin tablets.    From Wordnik.com.  [Space Platform]

Fentanyl is used by the microgram, its that potent; unlike morphine, which is used in milligrams.    From Wordnik.com.  [Deadly Intent] Reference

And Philips, from a low of 3.2, well under the 15 microgram limit, to ten 107.2 in another sample.    From Wordnik.com.  [CNN Transcript Dec 15, 2007] Reference

SINAI SCHOOL OF MEDICINE: There is no level at which lead exposure is safe, even at one microgram per deciliter.    From Wordnik.com.  [CNN Transcript Dec 10, 2007] Reference

In this study 814 women were treated for 52 weeks with 300 or 150 microgram testosterone patches or placebo patches.    From Wordnik.com.  [Doug Bremner: Wow! A Drug That Will Let Me Have Sex Once More a Month? Sign Me Up!] Reference

'NIST saved the day,' Moeller said, 'because we were working with only microgram and submicrogram quantities of the toxin.    From Wordnik.com.  [Archive 2007-01-01] Reference

United Nations scientists might have opened the flask to analyze the stuff, but they wouldn't need more than a microgram.    From Wordnik.com.  [The Ringworld Engineers]

The level of inorganic arsenic (the form of most concern) you take in from these sources is generally about 3.5 microgram/day.    From Wordnik.com.  [Health effects of arsenic] Reference

These are tiny amounts except for the few individuals for whom even nanograms, 1/1000 the amount of a microgram, are of concern.    From Wordnik.com.  [Lactitol - Another Nondairy "Lact"] Reference

Sylvania, from 59 to 70.3 micrograms and Philips, from a low of 3.2 while under the 15 microgram limit to 107.2 in another sample.    From Wordnik.com.  [CNN Transcript Dec 10, 2007] Reference

The Federal Safe Drinking Water Act standards have a drinking water criteria for total mercury at 2 ppb or 2 microgram per liter (ug/L).    From Wordnik.com.  [Waldo Jaquith - A new study says mercury is commonly found in corn syrup.] Reference

She knew full well that this stolid citizen of the “motherland” had never ingested so much as a microgram of Xanax, Prozac, or Halcion.    From Wordnik.com.  [One Flight Up] Reference

Dairy products, meat, eggs (about 50 microgram / 100g).    From Wordnik.com. Reference

VOC unit (defined as one microgram per hour per gram of dry leaf).    From Wordnik.com.  [Climate Progress] Reference

(MIC90 of 1 microgram/ml) or vancomycin (MIC90 of less than or equal to 1 microgram/ml).    From Wordnik.com. Reference

Many of these elements are toxic to humans and other life-forms in microgram quantities.    From Wordnik.com.  [Toledo Talk - recent article changes] Reference

Currently, only a microgram of the drug is needed to be effective in treatment, Chen said.    From Wordnik.com.  [ASU Web Devil - ASU's Online News Source -] Reference

It was balanced to a microgram -- to a millionth of the combined weight of three aspirin tablets.    From Wordnik.com.  [Space Platform] Reference

(A microgram is one thousandth of a milligram, and in one ounce, there are about 30 million micrograms.).    From Wordnik.com.  [The World's Healthiest Foods]

CEM-101 demonstrated 100% coverage (100% inhibition at less than or equal to 1 microgram/ml) against these strains.    From Wordnik.com. Reference

Resveratrol was additionally found to be present in acai in this study, although at low levels of 1.1 microgram per gram. source.    From Wordnik.com.  [Wil's Ebay E-Store]

As of the week ended October 31st, IMS data indicate that 8 microgram retail prescriptions now account for 16. 3\% of total scripts.    From Wordnik.com.  [pfblogs.org: The Ad-Free Personal Finance Blogs Aggregator] Reference

Pain was induced by injecting 250 ug (microgram) of capsaicin under the skin of the forearm at 30 minutes and 120 minutes after dosing.    From Wordnik.com. Reference