Examples of using Average concentration in English and their translations into Arabic
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The Seine River in France had an average concentration of 0.03 μg/L in 1995.
The average concentration in the most highly exposed well was less than 2 ug/L(PMRA, 2003).
Two common ways exist for citing current global average concentrations of CO2 in the atmosphere.
The average concentration, taking into account all of the data in this dataset, was 0.016 ng I-TEQ/m3.
Barber et al.(2005) also calculated an average concentration of 600 pg/m3 of SCCPs for the UK atmosphere.
PM10: Average concentrations reduced 0.03 μg/m3, peak concentration reductions up to 0.5 μg/m3 on polluted streets.
During petroleum production, transportation and processing, mercury emissions arenot likely to be more than 185 kg, assuming an average concentration of 10 ppb in the oil.
One uses the annual average concentration measured at one location, the Mauna Loa Observatory(MIO).
Mixing also plays a role in regenerating CO2 by bringing the O, CO and O2 in the upper atmosphere downward.[1]The balance between photolysis and redox production keeps the average concentration of CO2 stable in the modern Martian atmosphere.
Average concentrations of mercury in crude oil from all countries in this geographical region were assumed to be 300 ug/kg.
Unlike most other organochlorine pesticides that have decreased over time, average concentrations of endosulfan in the Arctic have not changed significantly during the last five years.
The average concentrations of N-EtFOSE alcohol were 205 pg/m3 in Toronto and 76 pg/m3 in Long Point.
In their summary of PCP studies, Zheng et al.(2011) found that more recent(1991-1996) average concentrations of PCP in sediment had a range of 0.9 to approximately 40 μg/kg dw.
NO2: Average concentrations were reduced by 0.12 μg/m3, peak concentration reductions up to 0.16 μg/m3 on polluted streets.
In 1977, 12 years after production of chlordecone began and2 years after the production ceased, average concentrations of chlordecone in estuarine water(dissolved) were < l0 ng/L(ppt)(Nichols 1990).
Average concentrations in precipitation(volume-weighted mean) at seven main sites during the years 1997- 2003 were 690-1400 pg/L for lindane.
Unlike for most other organochlorine pesticides,the concentrations of which have declined average concentrations of endosulfan in the Arctic did not change significantly during the last 1990s(Meaking, 2000).
At each site, the average concentration was skewed by high outliers that usually occurred in the summer and were attributed to current agricultural use of endosulfan.
Food Daily intake values of beta HCH for the general population in adult diets between 1986 and 1991 in the United Stateswere reported to be below 0.001 ug/kg/day The average concentration of beta-HCH in 234 ready-to-eat foods was 0.0027 ug/kg(no information on which basis the concentrations are expressed, ATSDR, 2005).
The results showed that the average concentration of Δ9-THC has grown dramatically over the last 10 years, passing from 8,9% to 2008 to 17,1% to 2017.
Food Daily intake values of beta HCH for the general population in adult human diets between 1986 and 1991 in the United Stateswere reported to be below 0.001 ug/kg/day The average concentration of beta-HCH in 234 ready-to-eat foods was 0.0027 ug/kg(no information on which basis the concentrations are expressed, ATSDR, 2005).
The average concentrations of α- and β-endosulfan in air were 0.170 and 0.045 ng m-3, respectively, at Solomons, Island, Maryland, in 1995(Harman-Fetcho et al., 2000).
The revised Regulations on Labour Standards for Women, which was put into effect in October 2012, prohibit any workplaces using 25 chemical materials that may affect women ' s pregnancy, childbirth, and breast-feeding from assigning female workers, irrespective of their age or pregnancy status, to a duty requiring the use of a respirator orany duty under an environment where the average concentration of hazardous materials exceeds the standard control concentration. .
In Morf et al.(2005), the average concentration in EE-appliances was estimated to 34 mg/kg PentaBDE.
The average concentration of PentaBDE in appliances is estimated to be 34 mg/kg, with the highest concentration- 125 mg/kg- in the plastic fraction(Morf et al. 2005).
A study by Karstensen(2006b) reports an average concentration of 6.7 ng I-TEQ/kg for PCDDs/PCDFs in CKD and a maximum concentration of 96 ng I-TEQ/kg.
Average concentrations in pilot whale and two seal species were lower in 2006/07 than 20 years earlier in the same regions, although for two species, and also for white-sided dolphin observed 1997-2006, average concentrations were highest between first and last of the three observation time points(i.e. peaking at the intermediate observation 1997-2002, depending on time series).
Also the controlling of Tri-Calcium Aluminates to enablecement to have good resistance against Sulphate(with average concentration 150- 1500 part per million) and in the same time have a good resistance against chlorides. As the increasing in Tri-Calcium Aluminates reducing concrete ability to resist sulphate and increase the resistance to chlorides.
Alaee et al.,(1999) reported average concentrations in the blubber of marine mammals from the Canadian Arctic as 25.8 μg/kg lipid in female ringed seals(Phoca hispida), 50.0 μg/kg in the blubber of male ringed seals, 81.2 μg/kg lipid in female beluga(Delphinapterus leucus) and 160 μg/kg lipid in male beluga. ln these samples, congeners of TetraBDE and PentaBDE were predominant.
Zheng et al.(2011) in their summary of PCP studies found that average concentrations in marine water between 1993 and 1997 ranged from 0.001 to 0.012 μg/L in samples from the Netherlands and UK; concentrations in precipitation ranged from < 0.002 to 0.01 μg/L. Concentrations of PCP in the Niagara River and St. Lawrence River in Canada ranged from < 0.2 to 21 ng/L.