Responses to the comments of Todd Abel on behalf of the Chlorine Chemistry Division of the American Chemistry Council

نویسنده

  • Todd Abel
چکیده

OEHHA is proposing to replace the Toxicity Equivalency Factors (TEF), which were developed by the World Health Organization (WHO) in 1997, with the more recent TEF values developed by the WHO in 2005. We agree with and support this revision. As noted correctly by OEHHA, the TEF methodology has evolved and improved over the years as additional toxicological data became available. The adoption of the WHO 2005 TEF values is a logical and laudable step in the direction of improving the TEF methodology. Although it is widely acknowledged that there are a number of limitations of the TEF methodology, it provides a useful tool for the health risk assessment of dioxins and dioxin-like compounds. The TEF approach is particularly valuable for screening risk assessment and as an interim approach to risk assessment until more appropriate data become available.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effect of Formulation Variables on Rifampicin Loaded Alginate Beads

The present work investigated the preparation of biodegradable beads with alginate polymer by ionotropic gelation method to improve the control release properties of the antibiotic rifampicin. Ionotropic gelation method was applied to prepare beads using calcium chloride (CaCl2) as cationic component and alginate as an anionic component. In this method, adding 0.5% w/v polyvinyl alcohol (PVA) t...

متن کامل

Effect of Formulation Variables on Rifampicin Loaded Alginate Beads

The present work investigated the preparation of biodegradable beads with alginate polymer by ionotropic gelation method to improve the control release properties of the antibiotic rifampicin. Ionotropic gelation method was applied to prepare beads using calcium chloride (CaCl2) as cationic component and alginate as an anionic component. In this method, adding 0.5% w/v polyvinyl alcohol (PVA) t...

متن کامل

On the Seasonal Changes in the Surface Water Chemistry of Museum Lake, Thiruvananthapuram, Kerala, India

The surface water chemistry of Thiruvananthapuram Museum Lake was carried out in the period of February 2013 to January 2014. Correlation study of the parameters and overall CCME WQI (Canadian Council of Ministers of the Environment Water quality Index) was also prepared in the study for the lake water. The parameters analysed are cations such as Ca2+, Na+, Mg2+ and K+ and the anions like PO4-,...

متن کامل

Native EFL Raters’ Criteria in Assessing the Speech Act of Complaint: The Case of American and British EFL Teachers

Despite the importance of interlanguage pragmatic rating (ILP) in the second language teaching and learning context, scant attention has been devoted to it. This study aims to investigate native EFL teachers’ major criteria in assessing the speech act of complaint produced by Iranian EFL learners. To fulfill this end, two groups of experienced native raters, including American (n=47) and Britis...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010