23 DOI: https://doi.org/10.1016/j.emcon.2016.03.003 English eng Jennifer Desborough Contributor <p><span style="margin: 0px; padding: 0px; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif; font-size: 16px;"><span style="margin: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px;"><a href="https://www.sciencedirect.com/topics/pharmacology-toxicology-and-pharmaceutical-science/hexabromocyclododecane" class="topic-link" style="margin: 0px; padding: 0px; color: rgb(31, 31, 31); --sd-arp-topic-annotations-text-colour: #1f1f1f; --sd-arp-topic-annotations-hover-text-decoration-colour: #eb6500; --sd-arp-topic-annotations-focus-outline-colour: #eb6500; text-decoration: underline 1px rgb(31, 31, 31); text-underline-offset: 1px;">Hexabromocyclododecane</a> (HBCDD) is listed under the </span><a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/stockholm-convention" class="topic-link" style="margin: 0px; padding: 0px; color: rgb(31, 31, 31); --sd-arp-topic-annotations-text-colour: #1f1f1f; --sd-arp-topic-annotations-hover-text-decoration-colour: #eb6500; --sd-arp-topic-annotations-focus-outline-colour: #eb6500; text-decoration: underline 1px rgb(31, 31, 31); text-underline-offset: 1px;">Stockholm Convention</a> on </span><a href="https://www.sciencedirect.com/topics/chemistry/persistent-organic-pollutant" class="topic-link" style="margin: 0px; padding: 0px; color: rgb(31, 31, 31); --sd-arp-topic-annotations-text-colour: #1f1f1f; --sd-arp-topic-annotations-hover-text-decoration-colour: #eb6500; --sd-arp-topic-annotations-focus-outline-colour: #eb6500; text-decoration: underline 1px rgb(31, 31, 31); text-underline-offset: 1px;">persistent organic pollutants</a>, yet very few data are available on HBCDD concentrations in soil. Median concentrations of total hexabromocyclododecanes (ΣHBCDDs) from soils from the UK (n = 24) were 0.73 ng g</span><span style="margin: 0px; padding: 0px; font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif;">−1</span><span style="color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif; font-size: 16px;"> dry weight (range <0.01–430 ng g</span><span style="margin: 0px; padding: 0px; font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif;">−1</span><span style="color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif; font-size: 16px;">) and exceed significantly (p = 0.002) those in Australian soils (n = 17, median = 0.10 ng g</span><span style="margin: 0px; padding: 0px; font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif;">−1</span><span style="color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif; font-size: 16px;">, range <0.0002–5.6 ng g</span><span style="margin: 0px; padding: 0px; font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif;">−1</span><span style="margin: 0px; padding: 0px; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif; font-size: 16px;">). Concentrations of <a href="https://www.sciencedirect.com/topics/chemistry/polychlorobiphenyl" class="topic-link" style="margin: 0px; padding: 0px; color: rgb(31, 31, 31); --sd-arp-topic-annotations-text-colour: #1f1f1f; --sd-arp-topic-annotations-hover-text-decoration-colour: #eb6500; --sd-arp-topic-annotations-focus-outline-colour: #eb6500; text-decoration: underline 1px rgb(31, 31, 31); text-underline-offset: 1px;">polychlorinated biphenyls</a> (PCBs) (average = 4.7 ng ΣPCBs g</span><span style="margin: 0px; padding: 0px; font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif;">−1</span><span style="color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif; font-size: 16px;">, range = 0.39–21 ng g</span><span style="margin: 0px; padding: 0px; font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif;">−1</span><span style="margin: 0px; padding: 0px; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif; font-size: 16px;">) were determined in 19 UK samples and found to be statistically indistinguishable (p > 0.05) from those of HBCDDs; thereby underlining the extent to which HBCDDs have migrated into the UK environment. Moreover, PCB concentrations in this study are not markedly lower than those recorded in UK soils sampled in the mid-1980s indicating that the initial rapid decline in UK contamination with PCBs following bans on their manufacture and use, has not been maintained. <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/degradation-product" class="topic-link" style="margin: 0px; padding: 0px; color: rgb(31, 31, 31); --sd-arp-topic-annotations-text-colour: #1f1f1f; --sd-arp-topic-annotations-hover-text-decoration-colour: #eb6500; --sd-arp-topic-annotations-focus-outline-colour: #eb6500; text-decoration: underline 1px rgb(31, 31, 31); text-underline-offset: 1px;">Degradation products</a> of HBCDD: pentabromocyclododecenes (PBCDs) and tetrabromocyclododecadienes (TBCDs) were detected in some UK soil samples with semi-quantitative concentrations ranging between 0.01 and 7.3 ng g</span><span style="margin: 0px; padding: 0px; font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif;">−1</span><span style="color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif; font-size: 16px;"> for ΣPBCDs and 0.01–1.3 ng g</span><span style="margin: 0px; padding: 0px; font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif;">−1</span><span style="color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif; font-size: 16px;"> for ΣTBCDs. In Australian soils only ΣTBCDs were detected at concentrations ranging from 0.0023 to 0.45 ng g</span><span style="margin: 0px; padding: 0px; font-size: 12px; line-height: 0; position: relative; vertical-align: baseline; top: -0.5em; color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif;">−1</span><span style="color: rgb(31, 31, 31); font-family: ElsevierGulliver, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif, sans-serif; font-size: 16px;">. Chiral signatures of HBCDDs were racemic or non-racemic in all samples indicating minimal edaphic enantioselective degradation. A horizontal transect at the most contaminated UK location (a suburban garden) revealed a marked decrease in concentrations of HBCDDs with increasing distance from buildings.</span></p> Elsevier March 2016 pdf Emerging Contaminants Polychlorinated biphenyls (PCBs), hexabromocyclododecanes (HBCDDs) and degradation products in topsoil from Australia and the United Kingdom mixed material Elsevier