Endocrine disrupting chemicals in New Orleans surface waters and Mississippi Sound sediments

Abstract

Endocrine disrupting compounds (EDCs), represented by steroid hormones, organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and bisphenol A have been determined in four sediment cores from the Gulf of Mexico, from New Orleans surface water (Lake Pontchartrain and Mississippi river), and from the influent and effluent of a New Orleans municipal sewage treatment plant. During the five-month monitoring of selected EDCs in the Mississippi river (MR) and Lake Pontchartrain (LP) in 2008, 21 of 29 OCPs in MR and 17 of 29 OCPs in LP were detected; bisphenol A was detected in all of the samples. Steroid hormones (estrone, 17β-estradiol and 17α-ethinylestradiol) were detected occasionally. Total EDC (OCPs + PCBs + steroid hormones + bisphenol A) concentrations in the two surface water samples were found to vary from 148 to 1112 ng L −1 . Strong correlation of the distribution of total OCPs, total PCBs and total EDCs between solid and water phases was found in LP, while moderate or no correlation existed in MR. OCPs, PCBs, steroid hormones, and bisphenol A were all detected in the ocean sediments, and total EDCs were measured in the range of 77 to 1796 ng g −1 dry sediment weight. The EDCs were also found in untreated and treated municipal sewage samples with a removal efficiency of 83% for OCPs but no removal efficiency for 17α-ethinylestradiol.

A 3-year study on occurrence of emerging contaminants in an urban stream of São Paulo State of Southeast Brazil

“…These concentrations are lower compared to that found for pharmaceuticals. However, the results are in agreement with most of the data reported in the literature (Camacho-Muñoz et al 2010;de Sousa et al 2014;Esteban et al 2014;Loos et al 2010;López-Roldán et al 2010;Wang et al 2012;Zhao et al (Esteban et al 2014;López-Roldán et al 2010). For E2, the average concentration in the present study (1.85 ng L −1 ) was consistent with maximum values obtained in rivers in China (7.7 ng L −1 ) and the USA (1.91 ng L −1 ) (Peng et al 2008;Wang et al 2012;Zhao et al 2009).…”

“…MDL and MQL ranged from 0.04 to 3.0 ng L −1 and from 0.1 to 5.0 ng L −1 , respectively, which was appropriate to detect the analytes in water samples at concentrations of the same order of magnitude already reported in previous studies (Baker and Kasprzyk-Hordern 2013;Collado et al 2014;Vazquez-Roig et al 2012;Wang et al 2012). …”

“…The occurrence of PPCP and hormones in aquatic ecosystems has been widely studied in many countries (Bendz et al 2005;Camacho-Muñoz et al 2010;Esteban et al 2014;Moldovan 2006;Petrović et al 2014;Ternes 1998;Verlicchi et al 2014;Wang et al 2012). However, these studies are still very limited in Brazil (Caldas et al 2013;de Sousa et al 2014;Jardim et al 2012;Kuster et al 2009;Montagner and Jardim 2011;Sodré et al 2010).…”

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“…2017 Figura 1. Variação das concentrações dos estrogênios estrona, estradiol, estriol e etinilestradiol no esgoto bruto, esgoto tratado e águas superficiais em diversos países (Drewes et al, 2005;Morteani et al, 2006;Chimchirian et al, 2007;Zorita et al, 2009;Duong et al, 2010;Zhang et al, 2011;Atkinson et al, 2012;Martin et al, 2012;Wang et al, 2012;Williams et al, 2012;Ye et al, 2012;Jin et al, 2013;Manickum e John, 2014;e Liu et al, 2015).…”

“…Com relação às águas superficiais, no geral, a estrona é o estrogênio mais abundante e frequentemente detectado (Manickum e John, 2014;Jin et al, 2013;Wang et al, 2012;Duong et al, 2010;Kim et al, 2007). A maior ocorrência desse estrogênio nos corpos hídricos devese principalmente ao fato da estrona ser o principal produto da biodegradação do estradiol (Figura 2), durante os processos de tratamento de esgoto (Zorita et al, 2009).…”