کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4428458 1619779 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Estimation of physicochemical properties of 52 non-PBDE brominated flame retardants and evaluation of their overall persistence and long-range transport potential
ترجمه فارسی عنوان
ارزیابی خواص فیزیکی و شیمیایی 52 غیر قابل انفجار با غلظت پراکسید پتاسیم برنده شده و ارزیابی پایداری کلی آنها و پتانسیل حمل و نقل درازمدت
کلمات کلیدی
ضریب پراکندگی آب و هوا، روش برآورد، فشار بخار، حلالیت آب، ضریب پارتیشن 1-اکتانول-آب
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


• First estimation of physicochemical properties of 52 non-PBDE BFRs using two methods
• Evaluation of estimation performance of both methods by comparing with measured values
• First estimation of overall persistence and long-range transport potential (LRTP) of 52 non-PBDE BFRs
• Selection of POP-like non-PBDE BFRs on the basis of the persistence and LRTP
• Priority in properties of the selected POP-like BFRs to be measured in the future

Non-PBDE (polybromodiphenyl ether) brominated flame retardants (BFRs) used as alternatives to PBDEs should be evaluated in terms of their environmental contamination potential. We first used two well-known estimation tools, EPI Suite and SPARC, to estimate the physicochemical properties of 52 non-PBDE BFRs. We assessed the dependence of the properties on the molecular weight and chemical structure of the compounds. The accuracy of the estimates was evaluated by comparing results with previous experimental data. In the case of EPI Suite, we have recommended an appropriate calculation method for the air–water partition coefficient. Half-lives in each environmental medium were also estimated with EPI Suite. Based on the estimated properties and half-lives, the overall persistence (Pov) and long-range transport potential (LRTP) of the BFRs were calculated using the Organization for Economic Cooperation and Development Pov and LRTP Screening Tool. We selected some POP-like chemicals from among the non-PBDE BFRs on the basis of their Pov and LRTP. From a Monte Carlo analysis of the calculated results for the selected BFRs, we suggest physicochemical properties to be measured in the future.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volumes 491–492, 1 September 2014, Pages 108–117
نویسندگان
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