Sentences with phrase «high ambient concentrations»

Not exact matches

«The methane concentrations were extraordinarily high, the highest we've seen in ambient samples,» said Blake, who has measured air pollutants across the globe for more than 30 years.

«a FACE study conducted at Maricopa, Arizona, USA — spring wheat was grown for two seasons at atmospheric CO2 concentrations of ambient and ambient + 200 ppm, with half of each plot receiving high amounts of nitrogen and half receiving low amounts.

[21] In 2008, measured ambient concentrations near drilling sites in Sublette County, Wyoming were frequently above the National Ambient Air Quality Standards (NAAQS) of 75ppb and have been recorded as high as 1ambient concentrations near drilling sites in Sublette County, Wyoming were frequently above the National Ambient Air Quality Standards (NAAQS) of 75ppb and have been recorded as high as 1Ambient Air Quality Standards (NAAQS) of 75ppb and have been recorded as high as 125 ppb.

Millions of electronic CO2 sensors that control ventiliation fans in high occupancy buildings use the consequence of back radiation at a resonant frequency of CO2 to determine concentration in the ambient air.

I always hark on about the CO2 concentration over vegetation in the early hours of the morning being many times higher than ambient CO2 concentration, but there is no appreciable warming effect.

When CO2 concentration is high, so is the ambient temperature.