Примеры использования Deposition levels на Английском языке и их переводы на Русский язык
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Emissions, atmospheric concentrations and deposition levels.
However, at extremely high N deposition levels plant growth was reduced.
The workshop took note that average N concentrations in common bryophyte species correlated well with N deposition levels.
At 25% of plots these critical N deposition levels were exceeded.
Calculated current deposition levels during the considered period hardly ever exceeded these critical thresholds.
Modelled threshold values for air pollution(critical deposition levels for N and acidity); and.
First of all, critical deposition levels were calculated only for soils with a base saturation below 25.
Is there a simple relationship between changes in emissions andchanges in pollutant concentrations and deposition levels?
It would seem risky to rely on maintaining high N deposition levels as a measure to mitigate climate change.
Achieving deposition levels of less than the critical loads is clearly important if damage to forest ecosystems is to be prevented.
Do we have a sufficient database of observed concentrations and deposition levels to evaluate the predictions of current models?
Closing the gap to deposition levels derived from emission scenarios, instead of critical loads, could be useful as an interim goal.
Austria has programmes for monitoring ambient air concentrations of PCDD/F andselected PAHs; deposition levels of PCDD/F, PCB, PAH and other POPs have been measured at several sites.
Calculated critical deposition levels for acidity varied in the same range as the calculated present loads mostly between 1000 and 8000 molc ha-1 yr-1.
The uncertainty in critical deposition level exceedances, which is affected by uncertainties in both present loads and critical deposition levels, may be very high.
For only 3% of the area(5% in 2030) deposition levels could not be sufficiently reduced to achieve recovery before 2100.
The data collected are very important in assisting in, for example, calculating emission data and critical loads,estimating deposition levels, validating models and assessing effects and recovery.
On 12% of all plots critical acid deposition levels are exceeded(up to 5400 molc ha-1 yr-1) on 29% of the plots where base saturation was below 25.
The data collected are very important in assisting in, for example, calculating emission data and critical loads,estimating deposition levels, validating models and assessing effects and recovery.
Emissions, long-range transport and deposition levels and their modelling, existing levels in the biotic and abiotic environment, the formulation of procedures for harmonizing relevant methodologies;
Parties to encourage research, development, monitoring and cooperation on mercury emissions,long-range transport and deposition levels, pollutant pathways and inventories in representative ecosystems LRTAP Heavy Metals Protocol article 6, paragraphs(a) and b.
Separate critical deposition levels for N as a nutrient were derived by requiring that an assumed critical N content in foliage was not exceeded to avoid an increased sensitivity to natural stress.
How does the intercontinental orhemispheric transport of air pollutants affect air pollution concentrations or deposition levels in the northern hemisphere for ozone and its precursors, fine particles and their precursors, compounds that contribute to acidification and eutrophication, mercury and persistent organic pollutants?
Critical deposition levels related to the indirect soil-mediated effects of atmospheric deposition on forest condition were calculated for each monitoring site with an adapted version of the simple mass balance model.
Consideration of effects will include a simple comparison of air concentrations, deposition levels and levels in media and biota with various available and relevant indicators of significance(e.g. lowest observed effect levels for similar species, tolerable daily intake levels for humans) as appropriate.
Critical deposition levels for the acidifying impact of both S and N compounds were calculated by requiring that an assumed, tree species specific, critical Al/(Ca+Mg+K) ratio in the soil solution was not exceeded at the bottom of the root zone.
They can also be used to determine the deposition levels required to achieve a prescribed target chemistry within a given timescale and so have a direct use in the formulation of future emission reductions.
Target loads and deposition levels are not applied in Cyprus, Ireland, Norway, the Republic of Moldova, Slovenia, the United Kingdom, the United States of America, Yugoslavia or in the European Community as an entity.
Dynamic models can also be used to determine the deposition levels required to achieve prescribed target chemistry within a given timescale, and so have direct utility in the formulation of further emission reductions.
Separate critical deposition levels for nitrogen as a nutrient were derived by requiring that an assumed critical N content in foliage is not exceeded to avoid an increased sensitivity to natural stress.