Author: Alan Dole HewittPublisher:
ISBN:
Category : Organic compounds
Languages : en
Pages : 28
Book Description
Laboratory Study of Volatile Organic Compound Partitioning Vapor/aqueous/soil
Author: Alan Dole HewittPublisher:
ISBN:
Category : Organic compounds
Languages : en
Pages : 28
Book Description
Laboratory Study of Volatile Organic Compound Partitioning, Vapor/Aqueous/Soil
Author: Alan Dole HewittPublisher:
ISBN:
Category : Soil air
Languages : en
Pages : 0
Book Description
A laboratory experiment measured the concentrations of volatile organic compounds (VOCs) existing in a vapor, water, and bulk soil media after several weeks of exposure to a contaminant source. The experimental design included quiescent conditions, hydrated mineral surfaces, and a constant temperature of 11 +/- 1 deg C. The findings show that similar to Henry's law, fairly constant ratios are likely to exist between soil vapor and bulk soil VOC concentrations. These results are encouraging for those attempting to use active soil gas measurements to predict bulk VOC concentrations in the vadose zone.
Behavior and Determination of Volatile Organic Compunds in Soil
Author: Marti MinnichPublisher:
ISBN:
Category : Hazardous wastes
Languages : en
Pages : 122
Book Description
The Behavior of Selected Volatile Organic Compounds in Unsaturated Soils and Media
Author: Jerold Scott TeeterPublisher:
ISBN:
Category :
Languages : en
Pages : 380
Book Description
Establishing a Relationship Between Passive Soil Vapor and Grab Sample Techniques for Determining Volatile Organic Compounds
Author: Alan Dole HewittPublisher:
ISBN:
Category : Soil pollution
Languages : en
Pages : 16
Book Description
Analysis of Volatile Organic Compounds (VOCs) in Soil Via Passive Sampling
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 58
Book Description
Passive sampling has been used as a qualitative and semi-quantitative method in detecting volatile organic compound (VOCs) concentrations in soil vapors or water. Passive sampling for soil vapor takes an absorptive material and places it underground for a period of time to allow the VOCs to diffuse into the absorptive materials. In this report, I use low density polyethylene (PE) as the absorptive material and determine two key parameters for passive sampling: the PE-water partition coefficient (Kpew) and diffusion coefficient in PE (Dpe). These two parameters help passive sampling to transition from a qualitative method to a quantitative method. The report describes the steps used to carry out the experiments, gives the results for several specific VOCs, and makes an attempt to draw more general conclusions on how to estimate these two parameters according to some other well-known properties.
Soil-vapor Versus Discrete Soil Sample Measurements for VOCs in the Near-surface Vadose Zone
Author: Alan Dole HewittPublisher:
ISBN:
Category : Organic compounds
Languages : en
Pages : 16
Book Description
Volatile Organic Compounds in the Environment
Author: Wun-cheng WangPublisher: ASTM International
ISBN: 0803120486
Category : Biodegradation
Languages : en
Pages : 289
Book Description
Papers delivered at the symposium of the same name, April 1994, by speakers from seven nations. Twenty presentations are arranged under six topics: regulation and assessment, air quality, environmental fate, environmental measurement, environmental monitoring, and control and remediation. A sampling
The Measurement of the Diffusion Rates of Volatile Organic Compounds Through Laboratory-prepared and Intact Soils
Author: Paul MilnePublisher:
ISBN:
Category :
Languages : en
Pages : 302
Book Description
Chemical Preservation of Volatile Organic Compounds in Soil Subsamples
Author: Alan Dole HewittPublisher:
ISBN:
Category : Soil pollution
Languages : en
Pages : 16
Book Description
