earthplatform.com

Results 1 - 10 from 151 for background concentrations in 0.232 sec.

Prokas
The model determines the concentrations (annual mean values and 98-percentils) of the air pollutants under consideration (incl. NOx ...
www.lohmeyer.de

Developing Soil Cleanup Guidelines Based on Historical Sampling Data
Historical data from the Department of Energy's Kansas City Plant were evaluated with log-probability plots to determine background concentrations of naturally-occurring metals that were also site contaminants. The background values determined by this method were ...
www.esd.ornl.gov

Water Quality Guidelines Online - Sediment Contaminant Guideline exceeded or likely to be exceeded?
Exceedance of a trigger value is acceptable if it is at or below the normal background concentration for a site. Also ... of Use Check background concentrations NOTE: Local Biological effects data not required in the decision trees (see section 3.1.5) <<<< Level below background level ** Level exceeds background levels >>>> Examine ...
www.ozh2o.com

MINTOX - Nickel Rim Mine Site Plume
Fe(II) and SO4 in the aquifer gradually recover to near-background concentrations. The extent of acid neutralization and the fate of dissolved heavy metals is ... of sulfide oxidation and reactive transport in the Nickel Rim tailings Aqueous Concentrations Solid Phase Concentrations Related Model Links: MINTRAN PYROX MINTOX MIN3P Reactive Transport Modelling Selected References Bain ...
www.science.uwaterloo.ca

Old news 2000
Circular (in Dutch) More information (in Dutch) - January 2006 - Changes background concentrations 1,2-dichloroethene (Vlier-Humaan) OVAM published changes on the 'background concentrations air' in their Newsletter of October 2005. Click here (Header ...
www.risc-site.nl

ProtocolLandBasedBS.html.doc
Contracting Parties, not exceeding environmental background concentrations. 1. Organotin compounds. 2. Organohalogen compounds e. g. DDT, DDE, DDD, PCB's. ... e. g. per year). 5. Discharge pattern (continuous, intermittent, seasonally variable, etc. ). 6. Concentrations with respect to major constituents, substances listed in Annex I, substances listed ...
internationalwildlifelaw.org

Makah NALEMP Program and Accomplishments: Site 22
Concentrations of copper, mercury, and zinc were significantly above regional background levels for these metals. Concentrations of most of the other metals that exceeded screening levels were in the range of Puget Sound natural background concentrations in soil (Ecology ...
ridolfi.com

RTDF Meeting July 26, 2002
Limno-Tech, Inc. Christine Hartnett of Eastern Research Group, Inc., (ERG) was also present. BACKGROUND INFORMATION A sediments management decision framework is being developed by a team of federal ... What do site stakeholders hope to achieve? Are the goals realistic? What benchmarks (e.g., background concentrations) should be used to screen a site? If stakeholders have a clear vision upfront, ...
rtdf.org

Background paper: Cities and conservation in Mediterranean-type ecosystems
Its purpose is to sketch the outlines of the problem. More definitive background information will be posted on, or linked to, these pages.] A. Introduction B. The ... the five Mediterranean-type regions share certain characteristics and problems: Biodiversity: MTEs have very high concentrations of biological diversity. For example, although they cover only about 2.25 percent of ...
interenvironment.org

Finnish Nature League: Commercial forests and key biotopes...
In practice, these habitats are interpreted as key biotopes when they are small of area ... is hardwood of boreal forests with hundreds of associated species. >>> Part 1 of the article >>> Background of forest protection This article was published in the biggest daily newspaper in Finland, ...
luontoliitto.fi