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

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

  • 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.

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

Related to Critical levels

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

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

  • Service Levels means the service levels to be met by the Services as referenced in the Contract Letter and set out in the Specification Schedule.

  • 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.”