Exposure pathways definition

Exposure pathways means the methods by which humans can come into contact with contamination including, but not limited to, the ingestion-dermal exposure pathway and the inhalation exposure pathway.
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Exposure pathways means air, soil, water, or food;
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Exposure pathways are means by which hazardous materials move through the environment from a source to a point of contact with people, or with animal or plant populations. A complete exposure pathway must have four parts: (1) a source of contamination, (2) a mechanism for transport of a material from the source to the air, surface water, groundwater, or soil, (3) a point where people come in contact with contaminated air, surface water, groundwater, or soil, and (4) a route of entry into the body. Routes of entry can be eating or drinking contaminated materials, breathing contaminated air, or absorbing contaminants through the skin. Risks can be assessed when an exposure pathway is complete. If any part of an exposure pathway is absent, the pathway is said to be incomplete and no exposure or risk is possible. In some cases, although a pathway is complete, the likelihood that significant exposure will occur is very small.
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Examples of Exposure pathways in a sentence

  • Exposure pathways not eliminated are either completed or potential.

  • Exposure pathways are used to evaluate specific ways in which people were, are, or will be exposed to environmental contamination in the past, present, and future.

  • Exposure pathways not eliminated are either completed or potential pathways.

  • Exposure pathways not eliminated are determined to be either completed or potential.

  • Exposure pathways and human responses to hazardous and toxic substances.

  • Exposure pathways evaluated include incidental ingestion of and dermal contact with soil, and inhalation of particulates in ambient air.

  • Exposure pathways that could result in unacceptable risks are being controlled.

  • Policy 1 (Development Requirements) of the LPP2 requires that a suitable means of access to the development is achieved without detriment to the amenity of the adjacent properties or highway safety.

  • Exposure pathways are used to evaluate specific ways in which people were, are, might or will be exposed to environmental contamination.

  • Exposure pathways that could result in unacceptable risks are being eliminated through ICS.

Related to Exposure pathways

  • Career Pathways means a sub-grouping used as an organizing tool for curriculum design and instruction of occupations and career specialities that share a set of common knowledge and skills for career success;

  • Public facility means 1 or more of the following:

  • Floodplain Development Permit means any type of permit that is required in conformance with the provisions of this ordinance, prior to the commencement of any development activity.

  • Processes with Significant Environmental Aspects means the Equipment which, during regular operation or if not properly operated or maintained, may cause or are likely to cause an adverse effect.

  • Planned special exposure means an infrequent exposure to radiation, separate from and in addition to the annual occupational dose limits.

  • Wild animal means any mammal, bird, fish, or other creature of a wild nature endowed with sensation and the power of voluntary motion.

  • Public Infrastructure means publicly owned physical infrastructure necessary to support economic development projects, including, but not limited to, sewers, water supply systems, utility extensions, streets, wastewater treatment systems, storm water management systems, and facilities for pretreatment of wastewater to remove phosphorus.

  • Peak tube potential means the maximum value of the potential difference across the x-ray tube during an exposure.

  • Non-combustible material means a material, which does not burn nor add heat to a fire when tested for combustibility in accordance with good practice;

  • Pathway means a transport mechanism by which chemicals of concern may reach a receptor(s) or the location(s) of a potential receptor.

  • Unreasonable adverse effects on the environment means any unreasonable risk to humans or the environment, taking into account the economic, social, and environmental costs and benefits of the use of any pesticide.

  • Generally applicable environmental radiation standards means standards issued by the U.S. Environmental Protection Agency (EPA) under the authority of the Atomic Energy Act of 1954, as amended, that impose limits on radiation exposures or levels, or concentrations or quantities of radioactive material, in the general environment outside the boundaries of locations under the control of persons possessing or using radioactive material.

  • Dormitory means a building used in conjunction with an educational building for living quarters for seven or more students;

  • Underground storage tank system means an underground storage tank and the connected underground piping, underground ancillary equipment, and containment system, if any.

  • Environmentally preferable products means a product or service that has a lesser or reduced effect on human health and the environment when compared with competing products or services that serve the same purpose. Such products or services may include, but are not limited to, those which contain recycled content, minimize waste, conserve energy or water, and reduce the amount of toxics either disposed of or consumed.

  • Particulate matter emissions (PM) means the mass of any particulate material from the vehicle exhaust quantified according to the dilution, sampling and measurement methods as specified in this UN GTR.

  • Wild animals means those species of the class Mammalia whose

  • Seepage pit means an excavation deeper than it is wide that receives septic tank effluent and from which the effluent seeps from a structural internal void into the surrounding soil through the bottom and openings in the side of the pit.

  • Floodplain or flood-prone area means any land area susceptible to being inundated by water from any source (see definition of “flood”).

  • Cluster development means a contiguous cluster or

  • Leakage technique factors means the technique factors associated with the diagnostic or therapeutic source assembly which are used in measuring leakage radiation. They are defined as follows:

  • PM10 emissions means PM10 emitted to the ambient air as measured by an applicable reference method, or an equivalent or alternate method, specified in 40 CFR Part 51, Appendix M as of December 8, 1984, or by a test method specified in these regulations or any supplement thereto.

  • Dynamic driving task means the same as that term is defined in Section 41-26-102.1.

  • Evaluation and treatment facility means any facility which

  • Permeable pavement means paving material that absorbs water or allows water to infiltrate through the paving material. "Permeable pavement" materials include porous concrete, permeable interlocking concrete pavers, concrete grid pavers, porous asphalt, and any other material with similar characteristics.

  • Transportation project means any project that the department is authorized by law to undertake including but not limited to a highway, tollway, bridge, mass transit, intelligent transportation system, traffic management, traveler information services, or any other project for transportation purposes.