Sentences with phrase «reaches peak concentration»

Not exact matches

Data from the new ice core array illustrates that Antarctic lead concentrations reached a peak in 1900 and remained high until the late 1920s, with brief declines during the Great Depression and the end of World War II.

Caffeine is absorbed into the blood and body tissues, reaching peak levels of concentration between 15 - 120 minutes after consumption.

The plasma drug concentration increases with the extent of absorption; the peak is reached when the drug elimination rate equals absorption rate.

The longer time needed to reach peak plasma nitrate concentrations after ingestion of rocket salad and spinach beverages may be related to their higher fiber content and the larger volume ingested (Supplemental Table 1), likely resulting in a slower gastric emptying (34).

The climate response does not reach equilibrium at the peak, because it doesn't get a chance to: at the peak, the CO2 concentrations reverse direction and begin declining.

Throughout each year, the concentration of the gas fluctuates, reaching its annual peak in the spring.

Although production of ozone - destroying gases has been curtailed under international agreements, concentrations of the gases in the stratosphere are only now reaching their peak.

The seasonal curve of CO2 concentration reaches minimum in October, before NH detritus can decompose and SH utilisation can peak but when SO SST are at mininimum.

Emissions reductions larger than about 80 %, relative to whatever peak global emissions rate may be reached, are required to approximately stabilize carbon dioxide concentrations for a century or so at any chosen target level (see Figure 3).»

For example, from whatever peak concentration of carbon dioxide we eventually reach in the atmosphere, it will take about a thousand years for it to decrease by half, and then another thousand years to fall by half again.

Emission reductions larger than about 80 % relative to whatever peak global emissions rate may be reached are required to approximately stabilize carbon dioxide concentrations for a century or so at any chosen target level.»

GEM concentrations start to clearly increase in the 1940s and reach a peak at ≈ 3 ng m − 3 around 1970, subsequently decreasing and stabilizing around 1995 (Fig. 2A).

CO2 concentrations reach an annual peak every May, but the average in May 2017 was well above that of previous years.