"Measurable concentrations of gas we present at the surface for most wells with casing or cementing violations," the researchers wrote.
The amniotic fluid does not contain measurable concentrations of pesticides and PCBs under the conditions of the levels of quantification.
Water from all gas wells often returns to the surface containing extremely low but measurable concentrations of radioactive elements and huge concentrations of salt.
Although measurable concentrations of lead and other heavy metals persist in ancient metallurgical waste piles, our investigations found minimal evidence for contamination in the adjacent terrace systems.
Government studies have found that 80% of streams in the U.S. have measurable concentrations of prescription drugs including steroids and hormones and traditional wastewater treatment plants can't remove these compounds.
According to the study's statistical model, measurable concentrations, 5 to 50 nanograms per liter of water, could be expected on long stretches of the catchment area at low flow.
Air monitoring in these mechanical rooms showed intermittently measurable concentrations of many laboratory chemicals, but their magnitudes when present were very low, ranging from about 10 to more than 6,000 times below their applicable permissible exposure limits.
Forty-eight hours after the first dose, 5OH milk concentrations were undetectable in all intravenously injected cows; however, one intramuscularly injected and one subcutaneously injected cow had measurable concentrations.
The time it takes for bromoform to appear in measurable concentrations in the irradiated TiO2 suspensions was between 10 and 90 min and most strongly depended on the initial concentration of dissolved organic carbon present in the suspensions, along with the amount of photocatalyst, also in interaction with the initial bromide concentration.
Our study shows that meropenem elutes in pharmacologically measurable concentrations from ABC for a period of 3 27 days depending on the quantity of antibiotic added.
After oral administration of mebeverine HCI (270 mg) to fasted human volunteers, measurable concentrations of the drug were not found in plasma.
