نتایج جستجو برای: sea pollution

تعداد نتایج: 197723  

2012
S. W. Kulkarni

Effluent of various industries contain number of inhibitory substances which are continuously added in sea via river and results in water pollution. There is need to degrade the organic content to abate water pollution. In the present study, actinomycetes were isolated on glycerol aspargine agar from marine sample of Calangut beach, Goa. The isolates were tested for their potential to tolerate ...

Journal: :Proceedings. Biological sciences 2002
Kyrre Lekve Thierry Boulinier Nils Chr Stenseth Jakob Gjøsaeter Jean-Marc Fromentin James E Hines James D Nichols

Determining patterns of change in species richness and the processes underlying the dynamics of biodiversity are of key interest within the field of ecology, but few studies have investigated the dynamics of vertebrate communities at a decadal temporal scale. Here, we report findings on the spatio-temporal variability in the richness and composition of fish communities along the Norwegian Skage...

Journal: :E3S web of conferences 2021

The aim of this research is to study the main ecological parameters Black Sea in an experimental way as well evaluate results and draw conclusions. We at determining cause pollution sea area represented by emissions from ships’ engines surface waters. Our empirical part that included field expeditions, sampling was carried out with involvement students within framework internal grant project “M...

2016
Saleh A. Mohamed Mohamed F. Elshal Taha A. Kumosani Ahmad O. Mal Youssri M. Ahmed Yaaser Q. Almulaiky Amer H. Asseri Mazin A. Zamzami

Large amounts of waste water are discharged daily from the Jeddah Metropolitan Area into the Red Sea. Sewage draining into the Red Sea causes widespread chemical pollution that is toxic to aquatic ecosystems. The objective of this study was to investigate the extent of pollution and assess the presence of heavy metals in fish tissue and study their association with biological and biochemical al...

2008
J. M. McArthur P. Ravenscroft D. M. Banerjee J. Milsom K. A. Hudson-Edwards S. Sengupta C. Bristow A. Sarkar S. Tonkin R. Purohit

In the Bengal Basin, the land surface exposed during the last lowstand of sea-level around 20 ka, and now buried by Holocene sediment, is capped by an impermeable clay palaeosol that we term the Last Glacial Maximum Palaeosol (LGMP). The palaeosol strongly affects groundwater flow and controls the location of arsenic pollution in the shallow aquifers of our study site in southern West Bengal an...

2008
Peeter Ennet Karin Pachel Vladimir Viies Lembit Jürimägi

This paper describes the usage of linked models for assessment of water quality in a river basin. River water quality model QUAL2K and the Wennerblom (Älvsborg) diffused pollution model were simultaneously applied for water quality and land-based pollution estimations. A software tool was developed to control the data flow between these models and databases. This tool provides automatic formati...

2008
Li Zhou Yu Zhang Chunfeng Liu Yan Sun Yaping Zhou

Global surface temperature anomaly yields serious consequences in the inhabited environment, which is considered responsible for the rising of sea levels, shrinkage of snow-covered areas, shortage of fresh water, and the disasters caused by abnormal weather. Accumulation of CO2 in the atmosphere is considered responsible for the global temperature anomaly, and industrial activities have acceler...

2000
Olof Byström Hans Andersson Ing-Marie Gren

If the environmental damages that are caused by excessive nitrogen load to the sea depend on the timing of emissions, then monitoring the stochastic variation of emissions is crucial for controlling eutrophication damages. A significant problem of nonpoint source (NPS) nitrogen pollution is that emissions are stochastic and difficult to control. The main purpose of this paper is to examine unde...

2002
Mark Brady

The implications of the propagation of uncertainty for the e ciency of stochastic water pollution control were analyzed. The empirical analysis focused on nitrogen pollution of the Baltic Sea from Swedish crop farms. A two moment model (mean and variance) of the distribution of coastal load was developed and integrated with an economic model of arable land-use choice. It was shown that uncertai...

Journal: :Marine pollution bulletin 2012
Jacqueline Krause-Nehring Thomas Brey Simon R Thorrold

In the study, we establish centennial records of anthropogenic lead pollution at different locations in the North Atlantic (Iceland, USA, and Europe) by means of lead deposited in shells of the long-lived bivalve Arctica islandica. Due to local oceanographic and geological conditions we conclude that the lead concentrations in the Icelandic shell reflect natural influxes of lead into Icelandic ...

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