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  • toxicity
  • As a consequence of the leaching process, ground water from the Valley of Neuquen River frequently contained concentrations of organophosphorus pesticides that exceeded acute toxicity risk ratios established to protect aquatic life. (biomedsearch.com)
  • The toxicity and environmental properties of these naphthenic acids have been well studied recently due to their occurrence as a major contaminant in water used for extraction of oil from tar sands. (wikipedia.org)
  • Biological
  • Combining information over the six years of monitoring showed 34 +/- 4% of the Atlantic and Gulf estuarine sediments displayed poorer than expected biological conditions, based on benthic and finfish community conditions, and 21 +/- 4% of the area was characterized by low water clarity, the presence of marine debris/noxious odors, or elevated fish tissue contaminants. (biomedsearch.com)
  • Environmental monitoring of THMs in water and ambient air was also performed in order to assess the possible correlation between environmental and biological samples. (biomedsearch.com)
  • Biological factors also contribute to the breakdown of certain pollutants. (wikipedia.org)
  • Biochemical oxygen demand (BOD, also called biological oxygen demand) is the amount of dissolved oxygen needed (i.e. demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period. (wikipedia.org)
  • Environmental issues almost always include an interaction of physical, chemical, and biological processes. (wikipedia.org)
  • Seawater
  • In the case of the Gulf of Gdańsk, non-conservative behaviour of VOC was observed due to random temporal and spatial of inputs along the Vistula estuary and to the dilution of VOC-enriched river water with seawater. (biomedsearch.com)
  • contamination
  • A line source, as opposed to a point source, area source, or volume source, is a source of air, noise, water contamination or electromagnetic radiation that emanates from a linear (one-dimensional) geometry. (wikipedia.org)
  • By its very nature, groundwater aquifers are susceptible to contamination from sources that may not directly affect surface water bodies, and the distinction of point vs. non-point source may be irrelevant. (wikipedia.org)
  • wastewater
  • The research led by Dr Barbara Kasprzyk-Hordern, in collaboration with Wessex Water, will provide better understanding of ecological and human health risks from chemical pollutants released into receiving environment with treated wastewater. (bath.ac.uk)
  • We are also studying chemicals in wastewater to determine whether the population in a particular area suffers from health issues such as cancer or infectious disease at a particularly high level. (bath.ac.uk)
  • Plants
  • However, using appropriately selected and properly sited plants may help to ensure that maintenance costs are lower than they otherwise would be due to reduced chemical and water inputs. (wikipedia.org)
  • In thermal power plants, the purpose of a surface condenser is to condense the exhaust steam from a steam turbine to obtain maximum efficiency, and also to convert the turbine exhaust steam into pure water (referred to as steam condensate) so that it may be reused in the steam generator or boiler as boiler feed water. (wikipedia.org)
  • Groundwater
  • Although interrelated, surface water and groundwater have often been studied and managed as separate resources. (wikipedia.org)
  • Conversely, groundwater can also feed surface water sources. (wikipedia.org)
  • Interactions between groundwater and surface water are complex. (wikipedia.org)
  • The Water Framework Directive stipulates that groundwater must achieve "good quantitative status" and "good chemical status" (i.e. not polluted) by 2015. (wikipedia.org)
  • pesticide
  • Decreased sperm count and sexual behavior in mosquitofish exposed to water from a pesticide-contaminated lake. (canarydatabase.org)
  • To conclude this half of the seminar, I will outline ongoing research with: a European agrochemical company and a UK water company, with whom, we are developing innovations to mitigate pesticide release into the environment and to evaluate pesticide attenuation-competence across water catchments. (bath.ac.uk)
  • Pesticide, metal, and other chemical residues in adult total diet samples. (biomedsearch.com)
  • Effect of pesticide use in fruit production orchards on shallow ground water. (biomedsearch.com)
  • pesticides
  • As a part of landscape-scale study, ground water samples were collected from 30 wells located in fruit production farms belonging to the valley of Neuquen river during the period 1995-1998 and analyzed for organophosphate pesticides. (biomedsearch.com)
  • interactions
  • From this perspective the implications of these interactions for pollutant bioavailability and transport will be developed. (bath.ac.uk)
  • This study examined the interactions between Daphnia magna and a water-soluble, lysophophatidylcholine coated single-walled carbon nanotube. (biomedsearch.com)
  • reactions
  • Taking the example of the global warming phenomena, physicists create computer models of atmospheric circulation and infra-red radiation transmission, chemists examine the inventory of atmospheric chemicals and their reactions, biologists analyze the plant and animal contributions to carbon dioxide fluxes, and specialists such as meteorologists and oceanographers add additional breadth in understanding the atmospheric dynamics. (wikipedia.org)
  • lakes
  • As the hypolimnion of lakes gradually filled with sediments, oxygen depletion would promote the release of iron-bound phosphorus to the overlying water. (wikipedia.org)
  • inputs
  • In California, the benefits of landscapes often do not outweigh the cost of inputs like water and labor. (wikipedia.org)
  • risks
  • I will highlight recent successes in the application of biochars to mitigate pollutant phyto-accumulation and markedly reduce the cancer risks in China's Cancer Villages. (bath.ac.uk)
  • Marine
  • This can be seen on the local level in Washington State where The Snohomish County's Natural Marine Resources Committee coordinated with the Mussel Watch program in 2007 to employ citizens to collect samples from the nearshore water Snohomish County. (wikipedia.org)
  • Such devices have potential roles in monitoring programmes such as those underpinning the European Union's Water Framework Directive and Marine Strategy Framework Directive. (wikipedia.org)
  • The Water Framework Directive (Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy) is a European Union directive which commits European Union member states to achieve good qualitative and quantitative status of all water bodies (including marine waters up to one nautical mile from shore) by 2015. (wikipedia.org)
  • Factors
  • The key limiting factors for growth are inundation and, even more importantly, water-stress during the dry season. (wikipedia.org)
  • agricultural
  • He wanted to become the first producer of chemicals for the downstream industry in Thailand such as sulphuric acid and agricultural fertilizers. (wikipedia.org)
  • Adsorption
  • Adsorption of tannic acid, humic acid, and dyes from water using the composite of chitosan and activated clay. (biomedsearch.com)
  • It was shown that the adsorption of larger molecules such as tannic acid (MW, 1700 g mol(-1)), humic acid, and RR222 from water onto composite beads was better described by the pseudo-first-order kinetic model. (biomedsearch.com)
  • fate
  • The second half of the seminar will consider the opportunities to use carbonaceous materials to alter the bioavailability and fate of chemicals. (bath.ac.uk)
  • Subset
  • Ecology could be considered a subset of environmental science, which also could involve purely chemical or public health issues (for example) ecologists would be unlikely to study. (wikipedia.org)
  • species
  • Indicator filter feeding species such as copepods have also been used to study pollutant fates in the New York Bight, for example. (blogspot.com)
  • environmental
  • The Sandoz chemical spill was a major environmental disaster caused by a fire and its subsequent extinguishing at Sandoz agrochemical storehouse in the Schweizerhalle industrial complex, Basel-Landschaft, Switzerland, on 1 November 1986, which released toxic agrochemicals into the air and resulted in tons of pollutants entering the Rhine river, turning it red. (wikipedia.org)
  • Environmental Hazard Ranking of Chemicals Spilled in the Rhine River in November 1986. (wikipedia.org)
  • Industrial
  • Specifically shifting to industrial chemicals, when they, along with other products containing these chemicals, are disposed of, they end up in landfills. (wikipedia.org)
  • The Siam Fine Chemicals manufactures engine and industrial lubricants and trades base oils and solvents and provides rental services for warehouses and tanks. (wikipedia.org)
  • shallow
  • During this process, decomposing microbes deplete the shallow water of all oxygen, suffocating larger decomposers. (wikipedia.org)
  • The water's flow path, along with the wide and shallow ditch, is designed to maximize the time water spends in the swale, which aids the trapping of pollutants and silt. (wikipedia.org)