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Archive for the ‘Air Quality Testing’ Category

Vapor Intrusion Investigations: Air Sampling Tips for Meeting Data Quality Objectives

Monday, September 26th, 2011

N. Dagnillo1, L. Hill2, A. Fortune3, A. Smith4, and S. Thompson2
1Trihydro Corporation, 3001 E. Pershing Blvd, Suite 115, Cheyenne, WY 82007
2Trihydro Corporation, 1537 Riverside Ave., Suite 101, Fort Collins, CO 80524
3Columbia Analytical Services, Inc., 2655 Park Center Drive, Suite A, Simi Valley, CA 93065
4Trihydro Corporation, 9460 Calle Milano, Atascadero, CA 93422

Vapor intrusion is a fate and transport process characterized by the upward movement of volatile chemicals from subsurface contamination (e.g., buried waste, contaminated groundwater) into overlying buildings. The potential for adverse human health effects from exposure to indoor air vapors has motivated private, state, and federal entities to develop guidance documents and protocols specific to the collection and analysis of soil vapor data.

Read more about Vapor Intrusion Investigations…

Vapor Intrusion/Vapor Encroachment: ASTM’s New Standard Guide

Monday, February 28th, 2011

Vapor Intrusion in the HomeBy Steve Wing

On June 14, 2010, ASTM International (formerly the American Society for Testing and Materials) issued E 2600-10, Standard Guide for Vapor Encroachment Screening on Property Involved in Real Estate Transactions. This document revises and supersedes ASTM E 2600-08, Standard Practice for Assessment of Vapor Intrusion into Structures on Property Involved in Real Estate Transactions, issued on March 3, 2008.1

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Preferred Method for Identifying Corrosive Chinese Drywall

Tuesday, September 14th, 2010

Preferred Method for Identifying Corrosive Chinese Drywall

On August 27th, the Federal Interagency Task Force on Problem Drywall, comprised of staff members from the U.S. Consumer Product Safety Commission (CPSC) and the U.S. Department of Housing and Urban Development (HUD), issued a revision to their guidance on the identification of problem drywall based on a recent study:

Read more about the CPSC’s revision on corrosive Chinese drywall…

New Regulations Proposed for Coal Ash

Monday, July 19th, 2010

Proposed Regulations for Coal Ash

Under the Resource Conservation and Recovery Act (RCRA), the EPA has proposed a rule that would regulate coal combustion residuals (CCR) for the first time.

CCRs, commonly known as coal ash, are residues captured from the combustion of coal at power plants and are typically disposed of at large surface impoundments in liquid (wet or slurried) form and at landfills in solid (dry) form. CCRs are currently considered exempt wastes under an RCRA amendment.


Proposed Rules and Standards Affecting Air Emissions

Monday, June 7th, 2010

Proposed Rules and Standards Affecting Air EmissionsOn April 29, 2010, the EPA announced two proposed air toxics standards: (1) an amendment to emission guidelines and new source performance standards, and (2) proposed new rules to clearly define and identify solid and non-solid, non-hazardous secondary materials.

The two air toxic standards will affect emissions from industrial, commercial, and institutional boilers and process heaters. One is written for major source facilities, which are those that emit or have the potential to emit 10 or more tons per year of any single air toxin or over 25 tons per year of any combination of air toxins. The second is for area source facilities that emit less than 10 tons per years of a single air toxin or less than 25 tons of any combination.


How to Determine Metals Emissions by EPA Method 29

Monday, April 26th, 2010

By Ed Wallace, Project Chemist, Kelso, WAEPA Method 29

EPA Method 29 measures hazardous air pollutant (HAP) emissions from stationary sources for mercury and other metals. The Clean Air Act (CAA) requires all major sources to meet HAP emission standards reflecting the application of maximum achievable control technology (MACT). These sources include industrial, commercial, and institutional boilers and process heaters. The other metals to be tested are antimony, arsenic, barium, beryllium, cadmium, chromium, cobalt, copper, lead, manganese, nickel, phosphorus, selenium, thallium and zinc.


Nitrogen Dioxide Standard Released by EPA

Monday, April 19th, 2010

Nitrogen-Dioxide-Public-Health EPA released a new National Ambient Air Quality Standard (NAAQS) for nitrogen dioxide (NO2) in January. This new one-hour standard is aimed to protect public health from peak short-term exposures, especially along busy city streets and highways where NO2 exposure is the most likely. According to the EPA, NO2 exposure has been linked to impaired lung function and increased respiratory infections, especially in people with asthma.

NO2 is one of a group of highly reactive gasses. It forms quickly from emissions from cars, trucks, buses, power plants, and off-road equipment. In addition, NO2 contributes to the development of ground-level ozone and fine particle pollution.

Read more about the nitrogen dioxide standard…