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Heavy metal concentrations in great blue heron fecal castings in Washington State: A technique for monitoring regional and global trends in environmental contaminants

Environmental ChemistryEnvironmental MonitoringEngineeringEnvironmental EngineeringWashington StateEnvironmental PollutionMetal ContaminationTrace MetalGlobal TrendsWater QualityMetal ToxicityEcotoxicologyEnvironmental ToxicologyPublic HealthHeavy Metal Concentrations