Vinaora Nivo Slider

The Cardno ChemRisk View

  • Home
    Home This is where you can find all the blog posts throughout the site.
  • Categories
    Categories Displays a list of categories from this blog.
  • Tags
    Tags Displays a list of tags that have been used in the blog.
  • Bloggers
    Bloggers Search for your favorite blogger from this site.
  • Archives
    Archives Contains a list of blog posts that were created previously.
  • Login
    Login Login form

Centers of Excellence

Posted by on in Centers of Excellence
We are excited to announce that one of our industrial hygienists, Mr. Thomas Slavin, received the best paper award at the 2017 American Foundry Society Metalcasting Congress, for the paper titled "Controlling Exposures to Air Contaminants in Metalcasting – a Performance-Based Approach". The paper, co-written with Mr. Robert Scholz, presents an approach to selecting controls for air contaminants in the metalcasting industry. It not only provides an evaluation of the current protocols used by the industry, but also provides foundries with additional guidelines to implement exposure control programs that are effective, reliable, and feasible. To learn more about the paper and about Cardno ChemRisk's capabilities, please contact Mr. Thomas Slavin.
Hits: 520
Rate this blog entry:
0

Posted by on in Centers of Excellence

Posted on behalf of the authors, Lindsey Garnick and Kevin Towle

...
Continue reading
Hits: 529
Rate this blog entry:
0

Posted by on in Centers of Excellence
Posted on behalf of the author, Christina Trusty

Cardno ChemRisk presented an abstract at the 2017 Society of Toxicology Annual Meeting in Baltimore, Maryland titled, “Risk Assessment for the Consumption of Ochratoxin A (OTA) in Breakfast Cereals in the US”.

Ochratoxin A (OTA) is a naturally occurring mycotoxin and is a stable contaminant found in the production and storage of cereals and grains. OTA is of interest, as it has been shown to cause kidney tumors in mice and rats, and is classified as a Group 2B carcinogen by the International Agency for Research on Cancer (IARC). Additionally, Health Canada has derived a negligible cancer risk intake (NCRI) of 4 ng/kg bw/day, corresponding to a 1 in 100,000 risk level, based on a TD05 of 19.6 μg/kg bw/day and a safety factor of 5000. In the U.S., there is currently no health based guidance value for OTA.

In our analysis, we assessed the potential cancer risks associated with consumption of OTA in different grain-based cereals in the U.S. OTA intake was estimated using the mean and maximum estimates of U.S. cereal consumption (various age groups, as reported in the EPA 2011 Exposure Factor Handbook) and mean OTA levels in grain-based U.S. cereals (as calculated from published literature).

Our results illustrated that OTA doses associated with mean cereal consumption rates are below the NCRI “negligible cancer risk” dose. The OTA doses associated with maximum consumption rates approach the NCRI value for several cereal types and exceed the NCRI for conventional oat cereal. Therefore, we concluded that the risk of cancer in the U.S. from OTA exposure is not likely to be of concern based on mean estimates of U.S. cereal consumption and mean OTA levels in grain-based cereals. However, under conditions of high consumption of oat cereal the OTA intake exceeds the NCRI.
Hits: 526
Rate this blog entry:
0

Posted by on in Centers of Excellence

Posted on behalf of the authors, Michael Ierardi and Dr. Marisa Kreider.

...
Continue reading
Hits: 295
Rate this blog entry:
Posted by on in Centers of Excellence
Cardno ChemRisk recently presented an analysis examining the cancer risk associated with residential exposure to radioactive components in soils containing coal combustion residuals (CCRs) at the 2017 Society of Toxicology (SOT) annual conference. CCRs are waste products created as a result of burning coal at power plants during the production of electricity, and are one of the largest industrial waste streams generated in the United States. In 2012, approximately 40 percent of CCRs were beneficially used (i.e. concrete and wallboard), while the remaining 60 percent were disposed of in surface impoundments and landfills. Coal and CCRs are composed of various constituents, including naturally occurring radioactive materials. For our research, Cardno ChemRisk scientists utilized reported mean and upper bound isotope-specific radioactivity values to calculate the potential human health cancer risks associated with residential exposure to CCR-containing soil via ingestion of soil, inhalation of particulates emitted from soil, and external exposure to ionizing radiation. The mean cancer risk was 7 x 10-9, and the upper bound cancer risk was 1 x 10-8. Both the mean and upper bound calculated cancer risks were below the Environmental Protection Agency's (EPA) acceptable risk threshold of 1 x 10-6 to 1 x 10-4. These findings suggest that residents living on lots with ground soil containing CCRs are not at an increased risk of cancer due to the presence of naturally occurring radioactive components in CCRs under the exposure parameters analyzed.

If you would like to learn more about Cardno ChemRisk's experience with coal ash, please contact Paul Scott
Hits: 824
Rate this blog entry:

The Cardno ChemRisk View

We're glad you decided to check us out.

Cardno ChemRisk is a respected scientific consulting firm headquartered in San Francisco with locations and consultants across the U.S. While our website provides a formal look at our capabilities, the Cardno ChemRisk View provides an informal voice too. Various Cardno ChemRisk consultants will be sharing news and views about current trends, happenings and methodologies in the industry. We’ll also highlight activities of interest at Cardno ChemRisk, within confidentiality restrictions of course.

The intent is to keep you informed and enable productive conversations, so please join in and get to know our staff and what makes our people unique. We are enthusiastic about the blogging experience and hope you will return often to learn and share. Stay tuned by subscribing to our blog or clicking on the RSS feed.

 

 

 

 

Cardno ChemRisk View Subscribers