2024年9月26日 · The National Risk Management Research Laboratory has developed a technology transfer document regarding management and treatment of vapor intrusion into …
2021年2月1日 · Your guide to Vapor Intrusion Mitigation Systems. Stop harmful vapors from polluted soil that can seep into your building. Learn whether an active or passive vapor …
2024年12月13日 · These documents are intended for use at any site being evaluated by EPA pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act …
Table 6-1 Recommended Vapor Attenuation Factors for Risk -based Screening of the Vapor Intrusion Pathway Table 7-1 Matrix of Options to Respond to Human Health Risk Posed by the …
2014年9月29日 · Several technologies can reduce indoor air concentrations and/or control completed vapor intrusion (VI) pathways. The appropriate technology depends on the vapor …
Vapor intrusion is the movement of chemical vapors from contaminated soil, groundwater or sewer lines into nearby buildings. Vapors enter buildings primarily through openings, such as …
In new construction, VI mitigation can include passive methods such as vapor barriers and natural venting systems; active systems such as sub-slab depressurization (SSD) systems; or a …
2020年5月30日 · Remediation will remove or destroy the source contaminants, where mitigation simply controls the exposure pathway. In the case of vapor intrusion, the main mitigation …
Available mitigation methods and systems are both active and passive, supporting new construction and retrofits of existing buildings, including: 1) Ventilation; 2) Pressurization/ …
This fact sheet describes the most common active vapor mitigation technologies and summarizes the considerations that go into design, installation, post-installation verification, and operation, …