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Posts Tagged ‘environmental protection agency’

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…

EPA Action Plan for Hexabromocyclododecane

Thursday, October 14th, 2010

 

HexabromocyclododecaneThe EPA is considering hexabromocyclododecane, a brominated flame retardant made up of various mixtures of its 16 isomers (herein: HBCD), for action under the Toxic Substance Control Act (TSCA). This is in addition to two other groups of compounds already discussed in previous Lab Science News articles.

HBCD is ubiquitous in the environment throughout the world and is also found in human tissues, including blood, adipose, and breast milk. When released into the environment, it can travel great distances, bioaccumulating and biomagnifing in the food chain. In addition to its high toxicity to aquatic organisms, studies have also linked HBCD to reproductive, developmental, and neurological effects in humans, with a potentially higher impact on children because of their smaller size.

Read more on hexabromocyclododecane…

EPA’s New Action Plan for Certain Dyes

Tuesday, September 28th, 2010

EPA Action Plan for Certain Dyes

On August 18th, 2010, the EPA announced the release of new action plans to review the potential health risks of certain compounds. These action plans were developed “based on [the chemicals’] presence in humans; persistent, bioaccumulative, and toxic (PBT) characteristics; [and] use in consumer products, production volume or other similar factors”1. These action plans may result in new use rules, new reporting limits, or banning or limiting their production and use.

The first of these action plans, and the only to be discussed in this current edition of Lab Science News, relates to azo dyes derived from benzidene and benzidene congeners. In the US, these compounds are used primarily in textiles, inks, paper, paints, and by the pharmaceutical and food industries. They are also used in inkjet and laser printers and as biological stains and reagents in laboratories. It is of note that they are already banned in the European Union.

Read more about the action plan for dyes…

New and Revised Clean Water Act Methods Proposed

Thursday, September 23rd, 2010

New and Revised Clean Water Act Methods ProposedIn August 2010 the EPA issued a notice proposing new and revised analytical methods to be used under the Clean Water Act (CWA).

The proposed rule, entitled “Guidelines Establishing Test Procedures for the Analysis of Pollutants Under the Clean Water Act; Analysis and Sampling Procedures”, will affect numerous EPA Methods, ASTM Methods, Standard Methods, and alternative test methods.

EPA methods:

Read more about the proposed CWA Methods…

EPA to Ban Use of Endosulfan

Wednesday, September 8th, 2010

EPA to Ban Use of Endosulfan

In June 2010, the U.S. Environmental Protection Agency (EPA) took action to ban the use of endosulfan in the United States because it poses unacceptable risks to agricultural workers and wildlife, and can be pervasive in the environment.

The decision was based on a revised ecological risk assessment report, first written in 2002, which highlights that farm workers face greater risks than were previously known. The EPA also found that endosulfan, a colorless solid, poses excessive risk to aquatic and terrestrial wildlife, as well as to birds and mammals that consume aquatic prey which have ingested endosulfan.

Read more about EPA’s plan to ban the use of endosulfan…

EPA Proposes New Permit Requirements for Pesticide Discharges

Wednesday, September 1st, 2010

New Permit Requirements for Pesticide Discharges

In June 2010, the U.S. Environmental Protection Agency (EPA) released a draft of its National Pollutant Discharge Elimination System (NPDES) permit. Through the permitting process, the EPA is seeking to decrease the amount of pesticides discharged into waterways. The new permit, also known as the Pesticides General Permit (PGP), was developed in response to a 2009 court decision, which ruled that pesticides can be classified as pollutants under the Clean Water Act.

The EPA’s PGP authorizes the controlled release of the following substances into U.S. waterways:

Read more about EPA’s Proposed New Permit Requirements for Pesticide Discharges…

Lead Paint: The EPA’s New Rule

Tuesday, August 24th, 2010

By Steve Wing

Lead Paint The EPA's New Rule

The Environmental Protection Agency’s (EPA) Lead: Renovation, Repair, and Painting Rule, issued in 2008, was to take formal (enforceable) effect on April 22, 2010. However, due to difficulties with compliance, the EPA has extended this deadline to December 30, 2010.

This rule mandates a number of specific practices for contractors to mitigate the health hazards associated with disturbance of lead-based painted surfaces in homes, child care facilities, and schools constructed prior to 1978.1 Under this rule, all contractors in the U.S. conducting work on lead-based painted surfaces are required to be EPA certified and to follow specified work practices for preparation, clean-up, and record keeping. Painters, plumbers, electrical workers, general contractors, and a miscellany of other service providers will be affected. The rule applies to the disturbance of lead-based painted interior surfaces of six or more square feet and exterior surfaces of 20 square feet or more. Guidelines are also provided for window replacement and demolition in such facilities and homes. Under the statute, contractors not in compliance could be fined as much as $37,500 a day.2

Read more about EPA’s lead paint rule…