What factors do we have to consider when assessing the impact of an environmental exposure?

Exposure assessment for use in environmental epidemiology must attend to 5 primary issues: (1) the definition and characterization of the potentially exposed population; (2) the collection of quantitative information on population exposure, temporal characteristics, and dose-response relations; (3) the medium and the …

What factors should you consider when assessing an environmental hazard and its effect on health?

decide on team member roles.

  • Step 1 – Hazard Identification. The risk assessor(s) examine whether a stressor has the potential to cause harm to humans and/or ecological systems, and if so, under what circumstances.
  • Step 2 – Dose-Response Assessment. …
  • Step 3 – Exposure Assessment. …
  • Step 4 – Risk Characterization.

What three items must one evaluate an exposure to an environmental condition?

6.1 Exposure Pathway Evaluation

  • Element 1: The contaminant source or release. …
  • Element 2: Environmental fate and transport. …
  • Element 3: Exposure point or area. …
  • Element 4: Exposure route. …
  • Element 5: Potentially exposed populations.
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Which of the following can be considered in environmental risk assessment?

Things to include in your environmental risk assessment

emissions, eg dust and other substances to the air. hazardous substance storage, use and disposal. liquid waste drainage and disposal. environmental impact of raw materials, eg potentially toxic metals or other materials.

What is environmental exposure assessment?

According to the EPA, an exposure assessment is the “process of measuring or estimating the magnitude, frequency, and duration of human exposure to an agent in the environment, or estimating future exposures for an agent that has not yet been released.” Exposure assessments attempt to address some of the following …

What are the 5 environmental factors?

Environmental factors include temperature, food, pollutants, population density, sound, light, and parasites.

What are the 4 types of risk assessment?

Different approaches to risk assessments can even be used within a single assessment.

  • Qualitative Risk Assessments.
  • Quantitative Risk Assessments.
  • Generic Risk Assessments.
  • Site-Specific Risk Assessments.
  • Dynamic Risk Assessments.
  • Remember.

What are the three ways one can consider exposure?

The exposure pathway of a hazardous substance is an important consideration in determining emergency response actions. An exposure pathway refers to the way a person can come into contact with a hazardous substance. There are three basic exposure pathways: inhalation, ingestion, or direct contact.

What is the main objectives of exposure assessment?

Explanation: Major objective of exposure assessment is to estimate the risk caused by the exposure of a chemical contaminant to an individual and ecosystem.

How do you conduct an exposure assessment?

Collect additional data and re-assess the exposure profiles as needed.

  1. 1) Gather Available Information and Data. …
  2. 2) Define Similar Exposure Groups. …
  3. 3) Profile the Exposure. …
  4. 4) Determine the Acceptability of Exposure. …
  5. 5) Collect Additional Information and Exposure Monitoring Data. …
  6. Optimal Level of Protection.
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What are some common environmental risk factors?


  • Air contaminants.
  • Toxic waste.
  • Radiation.
  • Disease-causing microorganisms and plants.
  • Pesticides.
  • Heavy metals.
  • Chemicals in consumer products.
  • Extreme temperatures and weather events.

What are the systematic considerations in risk assessment?

Identify hazards and risk factors that have the potential to cause harm (hazard identification). Analyze and evaluate the risk associated with that hazard (risk analysis, and risk evaluation). Determine appropriate ways to eliminate the hazard, or control the risk when the hazard cannot be eliminated (risk control).

What factors are used to characterize a risk?

What factors are used to characterize a risk?

Terms in this set (15)

  • Probability (likelihood of something to take place)
  • Consequence (outcome of a risk)
  • Economic Cost (consequence of risk)

Why is exposure assessment important?

Exposure assessments are conducted to help determine the health impacts of ETS exposure and to evaluate the effectiveness of strategies to reduce such exposures.

What are environmental exposures?

Having contact with chemical, biological, or physical substances found in air, water, food, or soil that may have a harmful effect on a person’s health. Examples of environmental exposures include UV radiation from the sun and cigarette smoke, radon, or other forms of air pollution.

What is exposure assessment in toxicology?

An exposure assessment estimates the magnitude, frequency and duration of human exposures. It also defines the pathways by which humans are potentially exposed. The results of an exposure assessment are a set of pathway-specific doses (or inhalation levels) for current and future exposures to the substance(s) at issue.

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