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Posts Tagged ‘bioaccumulative’

EPA Initiating Rule to Reduce Mercury from Dental Offices

Tuesday, October 19th, 2010

EPA Initiating Rule to Reduce Mercury from Dental OfficesRecently, the EPA announced it intends to propose a rule to reduce mercury waste from dental offices. Mercury is a concern to human health because it is considered a persistent bioaccumulative toxic element.

According to the EPA, dental amalgams, or fillings containing mercury, account for 3.7 tons of mercury discharged into US waterways each year.

Read more about Reducing Mercury from Dental Offices

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 Action Plan for Nonylphenol and Nonylphenol Ethoxylates

Tuesday, October 5th, 2010

Nonylphenol ethoxylates in soaps and cleanersThis article discusses the EPA’s action plans for the compounds, nonylphenol (NP) and nonylphenol ethoxylates (NPEs).

The EPA released new action plans on August 18th, 2010 to review the potential health risks of Benzidene and its congeners, Nonylphenol (NP) and Nonylphenol Ethoxylates (NPEs), and Hexabromocyclododecane (HBCD). These compounds were chosen based on their presence in humans, their persistent, bioaccumulative, and toxic (PBT) characteristics, and their use in consumer products and production.1 The action plans may result in new use rules, new reporting limits, or the banning or limiting their production and use.

According to the EPA’s Action Plan, a major reason for reviewing NP and NPEs is their widespread release into, and their toxicity in, the aquatic environment. NP is actually a mixture of various structured compounds, that differ in their level of toxicity. NP is used primarily in manufacturing NPEs, which first break down into shorter chain NPEs over time, and then eventually back to NP. While NP is more toxic than the NPEs, they are all toxic to plants, fish and aquatic invertebrates.

Find out the types of products Nonylphenol and Nonylphenol Ethoxylates are used for…

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 Additional Chemicals for Toxics Release Inventory

Monday, May 10th, 2010

EPA Proposes Additional Chemicals for Toxics Release InventoryThe EPA is proposing to add 16 chemicals to the Toxics Release Inventory (TRI) list of reportable chemicals. Established as part of the Emergency Planning and Community Right to Know Act, TRI is a publicly available EPA database that contains information on toxic chemicals, toxic chemical releases and waste management activities reported annually by certain industries as well as federal facilities.

EPA believes the following chemicals are reasonably anticipated to be human carcinogens:

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