title: Leaching of Cu and Zn from discarded boat paint particles into tap water and rain water.
abstract: We studied the leaching of copper and zinc from particles of discarded boat paint added to tap water (pH 7.3) and rain water (pH=4.7), simulating conditions encountered during the hosing or runoff of antifouling waste. Leaching rates appeared to be diffusion-controlled and were greater in rain water than in tap water and were greater for Zn than for Cu. After a period of 120h, between about 0.5% and 3% of total Cu and 5-30% of total Zn had been released to the aqueous phase. These observations suggest that Cu and Zn mobilised from fine antifouling particulates during washdown or rainfall events may be important contaminants of runoff and soils in the vicinity of boat repair facilities.
authors.affiliation: School of Geography, Earth and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth, UK.
authors.forename: Adam
authors.initials: A
authors.lastname: Jessop
authors.forename: Andrew
authors.initials: A
authors.lastname: Turner
mesh_terms: D003300:Copper / Q000032:analysis / Q000737:chemistry*; D004202:Disinfectants / Q000032:analysis; D004784:Environmental Monitoring; D005618:Fresh Water / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D010150:Paint / Q000032:analysis*; D011891:Rain / Q000737:chemistry*; D012767:Ships; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry*; D014881:Water Supply / Q000032:analysis*; D015032:Zinc / Q000032:analysis / Q000737:chemistry*
chemical_list: D004202:Disinfectants; D014874:Water Pollutants, Chemical; D003300:Copper; D015032:Zinc