Lab Science News - Science, chemistry and environmental news from laboratory experts

Archive for September, 2010

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…

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…

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…