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Title: Probabilistic risk assessment of common booster biocides in surface waters of the harbours of Gran Canaria (Spain)
Authors: Sánchez-Rodríguez, Álvaro
Sosa-Ferrera, Zoraida 
Santana-del Pino, Ángelo 
Santana-Rodríguez, José Juan 
UNESCO Clasification: 2301 química analítica
Keywords: Probabilistic risk assessment
Irgarol 1051
Antifouling paint
Canary Islands Harbour
Issue Date: 2011
Publisher: 0025-326X
Project: Estudio y Control Analitico de la Presencia de Diferentes Grupos de Contaminantes Orgánicos en Puertos Deportivos y Pesqueros de la Isla de Gran Canaria. 
Journal: Marine Pollution Bulletin 
Abstract: The presence of booster biocides in the aquatic environment has been associated with a risk to non-target species due to their proven toxicity. The aim of the present study was to determine the spatial and temporal distribution of common booster biocides in different harbours of the island of Gran Canaria (Spain) and evaluate, by means of a probabilistic risk assessment (PRA), the ecological risk posed by these compounds. With these objectives, a monitoring campaign was conducted between January 2008 and May 2009, collecting a total of 182 seawater samples. Four common booster biocides (TCMTB, diuron, Irgarol 1051 and dichlofluanid) were monitored. Diuron levels ranged between 2.3 and 203 ng/L and Irgarol 1051 between 2.4 and 146.5 ng/L. The ecological risk associated with these levels was always low, however, with probabilities of exceeding the 10th percentile of autotroph toxicity below 3.5%.
ISSN: 0025-326X
DOI: 10.1016/j.marpolbul.2011.02.038
Source: Marine Pollution Bulletin [ISSN 0025-326X], v. 62, p. 985-991
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