Sentences with phrase «in average concentrations»

8 Major Greenhouse Gases Increases in average concentrations of three greenhouse gases in the troposphere between 1860 and 2004, mostly due to fossil fuel burning, deforestation, and agriculture.

The change in average concentrations from February of last year to February of this year was 3.76 parts per million at the storied Mauna Loa Observatory in Hawaii, leaving the concentration at 404.02 parts per million for February, based on preliminary data.

Not exact matches

Average concentrations of PM2.5 in Beijing stood at 73 micrograms per cubic meter in 2016, down 9.9 percent on the previous year.

Since then the median name in the index was up 21 %, the average of the index members» performances was 29 %, while the index progressed by 39.5 % given the large concentration of the tail of performance in the benchmark within the index mega-cap heavyweights, as can be seen below.

They are enthusiasts; they have given up everything for the cause; that in itself implies a more than average power of concentration on an object.

In a new dissipative structure (either a steady state or a limit cycle), concentrations of chemicals and rates of mass - transfer between the system and surroundings will not be those characteristic of the previous equilibrium state (or the nonequilibrium steady state that corresponds to it under conditions of instability) but rather they will be the (perhaps quite different) average values which pertain to the new structure.

Its average concentration in milk is 0.01 g / 100 ml but lactoferrin is found in higher concentration in whey protein products: 30 to 100 mg / l of sweet whey.

In Liverpool Coutinho, Lallana, Sturridge (if he avoids injuries), Mane, Clyne, Wijnaldum, Can and even Mignolet (with highest concentration) are the players who have potential to be world class.Don't even deny it.Listen I fear Klopp bringing Liverpool to its best because he's selling a lot of the average players and by next season with some world class additions they are gonna spell disaster.

A mother's diet should include an average daily intake of 200 - 300 mg of certain fatty acids, in order to guarantee a sufficient concentration of DHA in the milk.

This study was performed in England by the UK Food Standards Agency, and found that the average concentration in rice drinks of total arsenic was 23 parts per billion, and inorganic arsenic was 12 parts per billion.

Most scientists and climatologists agree that weird weather is at least in part the result of global warming — a steady increase in the average temperature of the surface of the Earth thought to be caused by increased concentrations of greenhouse gasses produced by human activity.

An analysis by AQE found Cuomo's proposed cuts in operating aid average $ 773 per pupil in the 30 urban and suburban school districts classified as «high - need» by the State Education Department that have the greatest concentration of black and Hispanic students.

The water concentration reaches a maximum average of around 500 to 750 parts per million in the higher latitudes.

Researchers from Radboud University in the Netherlands found that in the two decades since Dutch farmers began using the pesticide on a variety of crops, the birds» population declined by an average of 3.5 percent annually in farmlands where local water levels contained high concentrations of the chemical.

For example, the researchers found higher - than - average concentrations of water in lunar volcanic deposits near the Moon's equator, where background water in the soil is scarce.

Worldwide, average concentrations rose 11 per cent between 1990 and 2015, according to a report by the Health Effects Institute and the Institute for Health Metrics and Evaluation, both in the US.

Notably, Terada and his colleagues say, previous studies have shown that the overall proportions of oxygen isotopes in the ozone layer also are skewed toward above - average concentrations of oxygen - 17 and oxygen - 18.

During the Eocene, the concentration of carbon dioxide in the atmosphere was more than 560 parts per million, at least twice preindustrial levels, and the epoch kicked off with a global average temperature more than 8 degrees Celsius — about 14 degrees Fahrenheit — warmer than today, gradually cooling over the next 22 million years.

The investigators combined daily averages into two - year averages and used a statistical model to predict concentrations in areas across the United States without a monitor.

The FDA Monitoring Program data set, which includes only 19 spiny dogfish specimens, puts the average mercury concentration in dogfish over 0.5 parts per million — high enough to result in an advisory for women of reproductive age and children in many states.

Despite all these variables, scientists from Svante Arrhenius to those on the United Nations Intergovernmental Panel on Climate Change have noted that doubling preindustrial concentrations of CO2 in the atmosphere from 280 parts per million (ppm) would likely result in a world with average temperatures roughly 3 degrees C warmer.

In fact, Antarctica has the highest average concentration of research personnel in the world — scientists make up 100 % of its population (which is still quite low with only 4000 «inhabitants» during the summer and about 1000 during the winterIn fact, Antarctica has the highest average concentration of research personnel in the world — scientists make up 100 % of its population (which is still quite low with only 4000 «inhabitants» during the summer and about 1000 during the winterin the world — scientists make up 100 % of its population (which is still quite low with only 4000 «inhabitants» during the summer and about 1000 during the winter).

To date, the global average concentration of carbon dioxide in the atmosphere has increased by nearly 27 percent between 1960 and 2015, with the expectation of a continued rise in years to come, according to the researchers.

Based on independent researchers» data, average mercury concentrations in spiny dogfish are somewhere between 0.35 ppm and 0.80 ppm.

Above - average warmth continues as a result of increasing concentrations of greenhouse gases in the atmosphere

But the data in this latest study also revealed something puzzling: falling levels of BPA in urine when 2006 measurements were compared with 2004; concentrations decreased from an average of 2.49 to 1.79 nanograms per milliliter.

The odds of failed implantation doubled among women with the highest blood level of PCB - 153 (the form of the chemical, on average, present in the highest concentration) compared to women with the lowest levels.

«If we assume an average microplastics concentration on the day we took the water sample in Rees, we can say that the Rhine contributes a daily load of more than 191 million plastic particles to the North Sea, and that only takes into account the surface.

Curiously, the decline in atmospheric oxygen over the past 800,000 years was not accompanied by any significant increase in the average amount of carbon dioxide in the atmosphere, though carbon dioxide concentrations do vary over individual ice age cycles.

On average, women in the study had even slightly lower HCB blood concentrations than those measured in the general population.

The men in the study had much higher concentrations of DDE and PCBs than the U.S. average.

So Weschler and Wisthaler simulated a typical office environment at the Technical University of Denmark in Copenhagen — two people in a carpeted 28.5 — cubic meter room at a temperature of 23 degrees Celsius with two small stainless steel tables, two chairs, two flat - screen LCD monitors, two headsets, one walkie - talkie, one small mixing fan, a few books, two laptops, two bottles of water and ozone concentrations that reached roughly 32 parts per billion, an average exposure for a hot, smoggy day.

To achieve 450 ppm, the concentration of greenhouse gases in the atmosphere associated with a 2 - degree Celsius rise in global average temperatures (a target advocated by the European Union), the «aggregate of fossil - fuel demand will peak out in 2020,» Tanaka says.

Between 1993 and 2008, the average concentration of THC in confiscated marijuana jumped from 3.4 to 8.8 percent.

Four years ago, Julia Sacher and her colleagues at the Centre for Addiction and Mental Health CAMH in Toronto already succeeded in showing that, in the first week postpartum, the concentration of the enzyme monoamine oxidase A in the brain is on average 40 percent higher than in women who had not recently given birth.

In January 2005, for example, Ohio State University geophysicist Ralph von Frese and his colleagues noticed a concentration of higher - than - average - density material in the rock about a mile under the surface of the East Antarctic ice sheeIn January 2005, for example, Ohio State University geophysicist Ralph von Frese and his colleagues noticed a concentration of higher - than - average - density material in the rock about a mile under the surface of the East Antarctic ice sheein the rock about a mile under the surface of the East Antarctic ice sheet.

About 460 million years ago, the concentration of CO2 in the atmosphere ranged somewhere between 14 and 22 times the current level, and the average global temperature was about 5 °C higher than it is now.

(For comparison, in 2014, average atmospheric concentration of the gas was about 398.5 ppm and had risen about 2.1 ppm each year in the previous decade.)

Results of the study, which the researchers report online today in the Proceedings of the National Academy of Sciences, show that for the first 170 million years or so of flying - insect evolution, wing length grew and shrank in step with variations in average oxygen concentration.

This will permit the average terrestrial concentrations of uranium and thorium to be 2 to 4.7 times higher than that observed in chondrites.

Already, the planet's average temperature has warmed by 0.7 degree C, which is «very likely» (greater than 90 percent certain) to be a result of the rising concentrations of greenhouse gases in the atmosphere, according to the U.N. Intergovernmental Panel on Climate Change.

The spread between the average BPA concentration that her team measured in children 6 to 11 years old (4.5 µg / liter) and adults (2.5 µg / L) doesn't look like much, but proved reliably different.

Yeast bathed in both concentrations of glucose produced an average of about 26 daughters, or buds.

In 2012, the EPA lowered the primary standard for the annual average concentration of PM2.5 particulates considered safe, as more information became known about their prevalence and danger to human health.

R. S. Sharma, a public health specialist on the panel from the Indian Council of Medical Research, writes in the report that, «the hot tropical climate of the country, the low body mass index; low fat content of an average Indian as compared to European countries and high environmental concentration of radio frequency radiation may place Indians under risk of radio frequency radiation adverse effect.»

These are, respectively, the upper «safe» concentration of carbon dioxide in the atmosphere, and the upper «safe» limit of average global temperature increase.

And even as the instruments in Hawaii indicated that we had reached the milestone, the global average concentration of CO2 was a few points lower.

Though the fist - sized rock is relatively dry by earthly standards, it contains between 10 and 30 times the average concentration of water found in other known martian meteorites — and it is the first to closely match certain aspects of the martian crust.

Average concentrations of gold in the leaves are much higher than normal, but individual particles of the metal are still very small, few, and far between.

Gary Cohen, president and founder of the Massachusetts - based nonprofit Health Care Without Harm, said in a telephone interview that the risks of climate change to both the health of U.S. citizens and the U.S. health care delivery system is profound, particularly in urban areas, where warming average temperatures are exacerbated by the heat island effect and high concentrations of other air pollution like ozone and particulate matter.