The author of this paper believes that the practical methods currently used for the evaluation of ground concentrations in these cases deserve some improvement.
He refueled and took off, against Boyington's orders, and destroyed four enemy barges and strafed several ground concentrations in the vicinity of Tonolei Harbor before returning to Munda.
The radiometric (gamma-ray) data provide detailed (~70 m along-line) ground concentration estimates of the heat-producing radioelements.
The model directly gives the boundaries of flammable clouds and the ground level concentrations of toxic releases; in addition, with some modifications, it can be applied to evaluate the heat transfer on vessels and buildings due to flame radiation and impingement.
Emission exposures zones were constructed within the study region using estimates of ground level concentrations of oxides of nitrogen (NOx) derived from stack and portal monitoring systems, and meteorological data collected at local air quality monitoring stations.
The data measures ground-level concentrations of ozone, a chemical that forms smog.
Ozone produced in East Asia can travel all the way to the western United States, where it directly contributes to ground-level concentrations of the pollutant, according to a new study in the Journal of Geophysical Research.
As a cross-validation, the ground-measured concentrations of particulate matters (PM2.5 and PM10) were compared against AOD.
