Contaminated land Flashcards Preview

env pollution (simon) > Contaminated land > Flashcards

Flashcards in Contaminated land Deck (11):
1

Definition of contaminated land?

Is any land to be in such a condition, by reason of substances in/on or under the land that
- significant harm is being caused or a possibility
- Pollution of controlled waters is happening or likely to happen

2

Land contamination

Potential to cause significant harm to ecosystems, humans, and pollution of controlled waters (GW, lakes rivers, coastal waters

3

Stages of risk assessment

1. Hazard identification - potential sources
2. Hazard assessment - potential for unnacceptable risks
3. Risk estimation - Magnitude and probability of the possible consequences.
4. Risk evaluation - Whether a risk is unacceptable.

4

WHat is the purpose of risk assessment

To develop and outline a conceptual model and establish if any potentially unacceptable risks to humans, ecosystems, property of controlled water that arise from potential contamination at the site.
Minimum submission required for a planning app.

5

What is a conceptual model

3d site characteristics and interaction with environment. Identifies all possible receptors and potential contamination and pathways. Also shows pollutant linkages. Takes into account current/proposed use.

6

What is a remediation strategy

Help manage your environmental liabilities. Ensure works cause no harm to environment + there is an accurate record of the works.

7

What are the stages of precautionary principle

First - soils damaged but no hazardous
Second - potentially adverse effects on organisms but values still tolerable
Third - Remediation level or cleanup. Need for either.

8

What are the Dutch Values

A - Reference level. Increase the quality of soil
B- Tolerance above which no biological/ecological damage observed. Monitor closely.
C - CLEAN THIS MOTHERFUCKER UP. lol jk its the intervention value. Cleanup is mandatory. Considers toxicology, local circumstances, soil type and spatial parameters.

9

What is CLEA

Contaminated land exposure assessment.
Computer model - long term human health assessment criteria for contaminated soil.
Only considers humans - doesn't include exposure to surface or groundwater.
1. Residential - with/without plant uptake
2. Allotments
3. commercial and industrial
(set ways you can take in pollutants)

10

What are SGV's

Soil guideline values. Does the contaminant pose a risk to humans or the environment. Gives intervention values.
They are derived using CLEA (contaminated land exposure assessment) and the model for 3 land uses (residential,allotments,commercial and industrial?

11

How gay is James on a scale of 1-10

11. SUPER GAY