ESAS – Module 5 – Energy and Sustainability Analysis – study material
Field Screening is used to - correct answer ✔✔Analyze volatile contamination concentrations
Typical Field Screening Applications Include: - correct answer ✔✔-Selecting locations for
boreholes or monitoring wells.
-Selection of samples for analysis and identifying CoPC
Common Field Screening Techniques Include - correct answer ✔✔- Organic Vapor Monitor for
headspace analysis of volatile organic compounds (VOCs) Most common for upstream sites.
- Colorimetric Tests
- X-ray fluorescence
- Visual and olfactory (accounting for health and safety issues)
- Soil vapour survey
- Field test kits (saturated past, pH, etc)
Organic Vapor Monitoring (OVM) - correct answer ✔✔-Screens hydrocarbons contamination in
soil or GW
- Methane exclusion capability
- Calibrate with pure, known concentration (hexane)
Advantages/Limitations of OVM - correct answer ✔✔- Advantages: Simple, rapid and low cost
technique
- Limitations: Gives qualitative response to organic vapor
Advantages/Disadvantages of Colorimetric Test - correct answer ✔✔- Advantages: Relatively
simple to perform and provide for near real-time results.
Field Screening is used to - correct answer ✔✔Analyze volatile contamination concentrations
Typical Field Screening Applications Include: - correct answer ✔✔-Selecting locations for
boreholes or monitoring wells.
-Selection of samples for analysis and identifying CoPC
Common Field Screening Techniques Include - correct answer ✔✔- Organic Vapor Monitor for
headspace analysis of volatile organic compounds (VOCs) Most common for upstream sites.
- Colorimetric Tests
- X-ray fluorescence
- Visual and olfactory (accounting for health and safety issues)
- Soil vapour survey
- Field test kits (saturated past, pH, etc)
Organic Vapor Monitoring (OVM) - correct answer ✔✔-Screens hydrocarbons contamination in
soil or GW
- Methane exclusion capability
- Calibrate with pure, known concentration (hexane)
Advantages/Limitations of OVM - correct answer ✔✔- Advantages: Simple, rapid and low cost
technique
- Limitations: Gives qualitative response to organic vapor
Advantages/Disadvantages of Colorimetric Test - correct answer ✔✔- Advantages: Relatively
simple to perform and provide for near real-time results.
