Critical levels definition

Critical levels means concentrations of pollutants in the atmosphere above which direct adverse effects on receptors, such as human beings, plants, ecosystems or materials, may occur, according to present knowledge;
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Critical levels means concentrations of pollutants in the atmosphere for a specified exposure time below which direct adverse effects on receptors, such as human beings, plants, ecosystems or materials do not occur according to present knowledge;
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Critical levels means the concentration of pollutants in the atmosphere above which direct adverse effects on receptors, such as human beings, plants, eco- systems or materials, may occur, according to present knowledge;
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Examples of Critical levels in a sentence

  • Critical levels and loads are set to protect the most vulnerable habitat types.

  • Critical levels (as defined in article 1) of ozone are determined to protect plants in accordance with the Convention’s Manual on Methodologies and Criteria for Modelling and Mapping Critical Loads and Levels and Air Pollution Effects, Risks and Trends.

  • Critical levels (as defined in article 1) of ammonia are determined to protect plants in accordance with the Convention’s Manual on Methodologies and Criteria for Modelling and Mapping Critical Loads and Levels and Air Pollution Effects, Risks and Trends.

  • Critical levels and loads1 are set to protect the most vulnerable habitat types.

  • Critical levels are preferably based on stomatal fluxes, as these are considered more biologically relevant since they take into account the modifying effect of climate, soil and plant factors on the uptake of ozone by vegetation.

  • Critical levels of ozone have been derived for a number of species of crops, (semi-) natural vegetation and forest trees.

  • In: Critical levels for ozone in Europe: Testing and finalizing the concepts.

  • Essential plant nutrients, Criteria of essentiality, functions, deficiency Symptoms, Critical levels of deficiency and toxicity.

  • Critical levels (as defined in article 1) of ozone are determined to protect plants in accordance with the Convention's Manual on methodologies and criteria for mapping critical levels/loads and geographical areas where they are exceeded.

  • Critical levels are preferably based on stomatal fluxes, as these are considered more biologically relevant since they take into account the modifying effect of climate, soil and plant factors on the uptake of ozone by vegetation.7. Critical levels of ozone have been derived for a number of species of crops, (semi-)natural vegetation and forest trees.

Related to Critical levels

  • Working level (WL) means any combination of short-lived radon daughters in 1 liter of air that will result in the ultimate emission of 1.3E+5 MeV of potential alpha particle energy. The short-lived radon daughters are—for radon-222: polonium-218, lead-214, bismuth-214, and polonium-214; and for radon-220: polonium-216, lead-212, bismuth-212, and polonium-212.

  • Base Level means the level of the Index (excluding any flash estimates) published or announced by Eurostat (or any successor entity which publishes such index) in respect of the month which is 12 calendar months prior to the month for which the Substitute Index Level is being determined;

  • Working level month (WLM) means an exposure to 1 working level for 170 hours (2,000 working hours per year divided by 12 months per year is approximately equal to 170 hours per month).

  • Minimum Level (ML means the concentration at which the entire analytical system must give a recognizable signal and an acceptable calibration point. The ML is the concentration in a sample that is equivalent to the concentration of the lowest calibration standard analyzed by a specific analytical procedure, assuming that all the method-specified sample weights, volumes and processing steps have been followed.

  • Use Level means the license use meter or model (which may include operating system, hardware system, application or machine tier limitations, if applicable) by which Symantec measures, prices and licenses the right to use the Licensed Software, in effect at the time an order is placed for such Licensed Software, as indicated in this License Agreement and the applicable License Instrument.

  • Final Level means, in respect of the Index, the Closing Level on the Final Valuation Date, provided that, if the Final Valuation Date is not an Exchange Business Day, then the Final Level will be determined on the immediately preceding

  • Barrier Level means the Barrier Level as specified in § 1 of the Product and Underlying Data.

  • Severity Level means the actual impact of a Defect on a user’s operational environment as further described in the table below.

  • Sound level means the A-weighted Sound Pressure Level;

  • Sound level meter means an instrument which includes a microphone, amplifier, RMS detector, integrator or time averager, output meter, and weighting networks used to measure sound pressure levels.

  • Service Level means the standard set forth below by which IBM measures the level of service it provides in this SLA.

  • Poverty level means the annual family income for a family unit of a particular size, as specified in the poverty guidelines updated annually in the Federal Register by the U.S. Department of Health and Human Services.

  • Ground Level means the level of the referred point of exposed surface of the ground as indicated in the drawing.

  • Service Levels means any service levels applicable to the provision of the Services under this Call Off Contract specified in Annex 1 to Part A of Call Off Schedule 6 (Service Levels, Service Credits and Performance Monitoring);

  • RBC level means an insurer's company action level RBC, regulatory action level RBC, authorized control level RBC, or mandatory control level RBC where:

  • Critical Illness means an illness, sickness or disease or corrective measure as specified in Section 6 of this policy document.

  • Critical habitat means habitat areas with which endangered, threatened, sensitive or monitored plant, fish, or wildlife species have a primary association (e.g., feeding, breeding, rearing of young, migrating). Such areas are identified herein with reference to lists, categories, and definitions promulgated by the Washington Department of Fish and Wildlife as identified in WAC 232-12-011 or 232-12-014; in the Priority Habitat and Species (PHS) program of the Department of Fish and Wildlife; or by rules and regulations adopted by the U.S. Fish and Wildlife Service, National Marine Fisheries Service, or other agency with jurisdiction for such designations. See also “Habitat of special significance.”

  • Federal poverty level means the federal poverty guidelines

  • Initial Level means, in respect of an Index, the level specified as such in the applicable Issue Terms.

  • Index Level means, in respect of any day and subject to Adjustment Provisions: (a) in respect of an Index(other than a Multiple Exchange Index), the closing level of such Indexat the Valuation Time on such day; and (b) in respect of an Index that is a Multiple Exchange Index, the official closing level of the Index on such day at the Valuation Time as calculated and published by the Index Sponsor each as rounded up to four decimal places (with 0.00005 being rounded up), allas determined by the Calculation Agent.

  • Маrgin Level for CFD trading shall mean the percentage of Equity to Necessary Margin ratio. It is calculated as: Margin Level = (Equity / Necessary Margin) x 100%.

  • Critical Path means those Trade Contractor Work activities identified on the Construction Schedule which, if delayed, will cause a corresponding Delay in the Substantial Completion Date.

  • Level has the meaning given that term in the definition of the term “Applicable Margin.”

  • Service Level Failure means a failure to perform the Software Support Services fully in compliance with the Support Service Level Requirements.

  • Performance Level means a reference to one of Performance Level I, Performance Level II, Performance Level III, Performance Level IV or Performance Level V.

  • Closing Level : means the official daily Closing Level of the Index as published by the Index Sponsor in relation to each Scheduled Trading Day during the Investment Term.