Characteristics of gaseous pollutants distribution during remedial excavation at a volatile organic compound contaminated site

Volatile and semi-volatile organic compounds (VOCs/SVOCs) are commonly identified contaminants in industrial contaminated sites in China. VOCs migrate easily in the environment due to their relatively high volatilities. When disturbed during excavation, for example, VOCs in the soil release to the a...

Full description

Saved in:
Bibliographic Details
Published inHuanjing kexue Vol. 34; no. 12; p. 4619
Main Authors Gan, Ping, Yang, Yue-Wei, Fang, Zeng-Qiang, Guo, Shu-Qian, Yu, Yan, Jia, Jian-Li
Format Journal Article
LanguageChinese
Published China 01.12.2013
Subjects
Air Pollutants - analysis
China
Environmental Monitoring
Environmental Restoration and Remediation
Humans
Occupational Exposure
Soil - chemistry
Volatile Organic Compounds - analysis
Online AccessGet more information

Cover

More Information
Summary:Volatile and semi-volatile organic compounds (VOCs/SVOCs) are commonly identified contaminants in industrial contaminated sites in China. VOCs migrate easily in the environment due to their relatively high volatilities. When disturbed during excavation, for example, VOCs in the soil release to the air in high concentrations within relatively short period of time, joepodizing the health of the sorrounding population, if not appropriately protected. In this study, distribution of gas phase VOCs was monitored during excavation of a site remediation project, using a combined method of field testing instrument and gas phase sampling tubes. Monitoring results indicated that gas phase concentration decreased with distance, exhibiting an alternating peak-and-valley pattern in the down-wind direction. The monitoring results could be stimulated using Gaussian Puff Model. Remediation site health and safety zoning method was developed combining appropriate workplace health and safety air limits and site monitoring result
ISSN:0250-3301