Sentences with phrase «airborne lead concentrations»

These metal cores were initially made of lead and lead wick cores have the potential to generate indoor airborne lead concentrations of health concern.

Not exact matches

In doing so, we have limited our considerations to the direct climatic effects of steadily rising atmospheric concentrations of CO2 and have assumed a rate of CO2 increase that would lead to a doubling of airborne concentrations by some time in the first half of the twenty - first century.

«The proportionality of warming to cumulative emissions depends in part on a cancellation of the saturation of carbon sinks with increasing cumulative emissions (leading to a larger airborne fraction of cumulative emissions for higher emissions) and the logarithmic dependence of radiative forcing on atmospheric CO2 concentration [leading to a smaller increase in radiative forcing per unit increase in atmospheric CO2 at higher CO2 concentrations; Matthews et al. (2009)-RSB-.