Campillo-González, J.A. (Juan Antonio)

León-León, V.M. (Víctor Manuel)

Moreno-González, R. (Rubén)

English

León, V.M. (Víctor Manuel)

Repositorio Institucional Digital del IEO

                             Book of Abstracts submitted to the IV Congress of Marine Sciences. Las Palmas de Gran Canaria, June 11th to 13th          Title: Book of Abstracts submitted to the IV Congress of Marine Sciences. Las Palmasde Gran Canaria, June 11th to 13th. 488 pp.ISBN - 10: 84-697-0471-0ISBN - 13: 978-84-697-0471-4Poster’s AbstractsDistribution of current use pesticides in surface marine sediments from the Mar Menor Lagoon(SE Spain)Moreno-Gonza´lez, R., Campillo, J.A., Leo´n, V.M.1Instituto Espan˜ol de Oceanografı´a, Centro Oceanogra´fico de Murcia, Apdo. 22, C/ Varadero 1, 30740San Pedro del Pinatar, Murcia (Spain)AbstractCoastal lagoons and surroundings are exposed to high anthropogenic pressures (industrial activities, agri-cultural growing, urban sewages, harbours, uncontrolled spills. . . ).These activities generate a great inputof pollutants in the environment, which in many cases are not treated properly or being dumped to theenvironment directly. Mar Menor is a hypersaline (42-47) coastal lagoon located in the Cartagena Fieldarea at the South East of Spain, which is subjected to intensive agriculture, phreatic level rise, recreationalactivities and sporadic torrential rainfall regime. This intense sporadic torrential rainfall regime leadingto violent flash floods in the rivers and wadis provokes the mobilization and transport of contaminants tothe lagoon (Moreno-Gonza´lez et al., 2013) and the mobilization of the “in situ” pollutants in sediments.The seasonal input of organic pollutants through El Albujo´n watercourse (the main continuous flow to thelagoon) and their distribution in seawater have been previously characterized (Moreno-Gonza´lez et al.,2013a,b). The distribution of PAHs and organochlorinated compounds in sediments was also described(Leo´n et al., 2013), but no information is available about the occurrence of current used pesticides in thislagoon. In this study the distribution of organophosphorus pesticides, triazines and other pesticides wassemiannually characterized from spring 2009 to autumn 2010. Sampling campaigns were performed at18 stations inside the lagoon and one, as reference, was taken in the Mediterranean Sea. Pesticides wereextracted using sonication extraction or pressurized liquid extraction and were analyzed by GC-MS.Triazines (terbuthylazine, simazine, etc), organophosphorus pesticides (chlorpyrifos, methyl-chlorpyrifos,etc) and other pollutants (tributylphosphate, propyzamide, chlortal-dimethyl, etc) were detected in sur-face sediments in the low range of ng g−1. More pesticides were detected in sediments sampled in 2010than the corresponding ones obtained in 2009. The distribution of all the contaminant groups studied washeterogeneous, and significant seasonally differences were observed in the organic pollutants concentra-tions. The higher concentrations were detected close to different ports and wadis, as consequence of theirinput through groundwater and surface waters. Chlorpyrifos showed a preferential input to the lagoonthrough El Albujo´n watercourse. Partition coefficients (Kd) were also calculated where chlorpyrifosshowed a wide range and the highest values of Kd.Acknowledgement. This research has been supported by the Spanish Inter-Ministerial Science andTechnology Commission “DECOMAR” project (CICYT, CTM2008-01832).ReferencesLeo´n VM, Moreno-Gonza´lez R, Gonza´lez E, Martı´nez F, Garcı´a V, Campillo, JA. Science of The. Total Environment 2013; 463-464:975-987.Moreno-Gonza´lez R, Campillo JA, Garcı´a V, Leo´n VM. Chemosphere 2013a; 92: 247-257.Moreno-Gonza´lez R, Campillo JA, Leo´n VM. Marine Pollution Bulletin 2013b; 77: 400–411.Wednesday, June 11th 317

Distribution of current use pesticides in surface marine sediments from the Mar Menor Lagoon (SE Spain)

Moreno-González, Rubén

Campillo-González, Juan Antonio

León, Víctor Manuel

Digital.CSIC

http://www.repositorio.ieo.es/e-ieo/bitstream/10508/2433/1/BookofAbstracts%20Distribution%20of%20pesticides%20Seminario%20Quimica%20Marina%202014.pdf

Distribution of current use pesticides in surface marine sediments from the Mar Menor Lagoon (SE Spain)

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