Environmental Changes in a Polluted Stream During Winter

Water quality changes in a polluted stream over a twenty-five-year period.

The Deckers Creek watershed in northern West Virginia (USA), containing a land area of 166 km2 (63 mi2), has a long history of industrial development and attendant environmental abuses from both land and water pollution practices. The water in Deckers Creek was sampled in 1974 at 29 locations along the main stem and resampled in 1999-2000 to determine water quality changes over this 25-year per...

Sharing a polluted river through environmental taxes

n agents located along a river generate residues that then require cleaning to return the river to its natural state, which entails some cost.We propose several rules to distribute the total pollutant-cleaning cost among all the agents. We provide axiomatic characterizations using properties based on water taxes. Moreover, we prove that one of the rules coincides with the weighted Shapley value...

Assessment of spatial changes of stream erosion under environmental factors in Kojoor Firoozkolay region using multivariate statistical techniques

Adenine Nucleotide Changes during Cold Acclimation of Winter Rape Plants.

During the first stage of hardening of winter rape plants (Brassica napus L. var. oleifera L., cv. Górczański), marked increase of ATP content in leaves was observed. Lowering the temperature from 5 to 0 C (the second stage of hardening) had no further effect on ATP content. In roots, not capable of hardening, pronounced decrease of ATP content was noted after prolonged exposure to cold. It was...

Environmental Management : - Bioremediation of Polluted Environment

Environmental biotechnology employs the application of genetic engineering to improve efficiency and cost, which are central to the future of widespread exploitation of microorganisms to reduce the environmental burden of toxic substances. It is hoped that in future, the application of microorganisms coupled with genetic engineering techniques, will make a major contribution to improve the qual...