Sentence examples for common pollution from inspiring English sources

Common pollution and the fear of terrorism are motivating factors, Mr. Kavana said.

Common pollution indices, such as Contamination factor (Cf), degree of contamination (Cd), modified contamination degree (mCd), potential ecological risk index (RI) and metal pollution index (MPI), were used for assessing contamination status.

Factor analysis indicated thatthese heavy metals including As were closely correlated and orginated from common pollution sources before the flow-sediment regulation; however, the sources of As and Cd separated from the sources of Cu, Pb and Zn after the regulation regime, implying that the flow-sediment regulation regime contributed to As and Cd accumulation in the YRD.

At the time of the spill, the EPA was attempting to determine how to deal with a common pollution problem in many parts of the Rocky Mountain West: the steady leaching of toxic waste from hundreds of hard-rock mines scattered throughout the region.

Based on Pearson's correlation coefficient, no significant correlations were found between concentrations of heavy metals in the sediments of the Hara Protected Area, while Zn and Pb concentrations were positively correlated in the sediments of the Azini Bay, implying a common pollution source.

Second, we are studying the effects of an extreme but relatively short-lived increase in pollution that might affect health and labor supply in a different way than the more common pollution sources that are usually more moderate in severity but last for longer periods of time.

Yet a new study suggests regions as highly polluted as the Yangtze River Delta can clear the air and in the process save thousands of lives by adopting common pollution-control technologies [ EHP 118 9):1204 1210; Zhou et al.].

Periods of stagnant air are becoming more common, trapping pollution and leading to the build up of extreme levels of toxic air.

The number of species impacted this way is almost four times greater than the next most common threat, pollution" [1].

For this purpose the use of IVE (International Vehicle Emission) model that is common air pollution modelling and besides, Sensitivity Analysis has been performed to show modeling accuracy in comparison with current emissions.

This paper is a review of particle characteristics that are used as source signatures, their general advantages and limitations, as well as a review of source signatures of the most common combustion pollution sources including road transport, industrial facilities, small household combustion devices, environmental tobacco smoke, and vegetation burning.