Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Risk-based monitored natural attenuation--a case study.

F I Khan¹, T Husain

¹Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St John's, NF, A1B 3X5, Canada. fkhan@engr.mun.ca

Journal of Hazardous Materials

|August 8, 2001

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Ethylene and hydrogen sulphide are essential for mitigating hexavalent chromium stress in two pulse crops.

Plant biology (Stuttgart, Germany)·2021

Same author

Potential role for vascular surgeons during a COVID-19 outbreak: management, workload, and outcomes from the initiation of a central venous line service for patients with COVID-19 undergoing ventilation during the initial UK peak.

The British journal of surgery·2021

Same author

A prospective, up-down sequential allocation study investigating the effectiveness of vital capacity breaths using high-flow nasal oxygenation versus a tight-fitting face mask to pre-oxygenate term pregnant women.

International journal of obstetric anesthesia·2020

Same author

Apnoeic oxygenation during maternal cardiac arrest in a parturient with extreme obesity.

International journal of obstetric anesthesia·2016

Same author

How UK obstetric anaesthetists assess neuraxial anaesthesia for caesarean delivery: national surveys of practice conducted in 2004 and 2010.

International journal of obstetric anesthesia·2013

Same author

Strategies to prevent airway complications: a survey of adult intensive care units in Australia and New Zealand.

British journal of anaesthesia·2012

Monitored natural attenuation (MNA) offers a risk-based remediation strategy by evaluating site characteristics and natural processes. This approach guides site closure through long-term monitoring, but rapid cleanup may require contaminant removal.

Area of Science:

Environmental Science
Risk Assessment
Remediation Technologies

Background:

Policymakers increasingly adopt risk-based approaches for environmental remediation.
Risk-Based Corrective Action (RBCA) by ASTM pioneered risk-based site management.
Monitored Natural Attenuation (MNA) relies on natural processes with careful monitoring.

Purpose of the Study:

To develop a systematic methodology linking RBCA with MNA for risk-based site evaluation and remediation.
To provide a framework for assessing the feasibility of natural attenuation (NA).
To guide long-term monitoring and site closure decisions.

Main Methods:

A seven-step methodology integrating RBCA principles with MNA.
Site characteristic evaluation for NA feasibility.

Related Experiment Videos

Case study application to an oil pipeline spill site.

Main Results:

The developed methodology effectively evaluates sites for NA suitability.
A pipeline spill site showed potential for NA, but xylene and ethylbenzene attenuation may exceed 80 years.
Initial risks to receptors were significant but decreased over 20 years due to plume dilution and drift.

Conclusions:

The methodology provides a robust framework for risk-based site remediation using MNA.
While NA is feasible for the case study site, accelerated remediation might necessitate active contaminant removal.
Long-term monitoring is crucial for eventual site closure, with acceptable risk levels achieved after two decades.