Dredging and marine environment

Claude Alzieu - Collection Comportements des polluants

128 pages, parution le 06/04/2005

Ajouter à une liste

Indisponible

Résumé

Large amounts of sediments are dredged to maintain ships' access to ports and harbours. Dumping dredged waste at sea is only authorized if they have been shown to be harmless for the marine environment.

Following a brief review of the geochemistry and toxicity of the various contaminants adsorbed on sediments, this manual proposes a holistic and integrated approach to assessing the environmental hazards related to dredged materials disposal at sea. The document also gives a detailed description of risk characterization methods based on chemical analysis (Geodrisk), along with selected toxicity assays used for sediment quality bioas-sessments as defined by the Index for evaluation of the coastal endofauna (I2EC) and active biomonitoring of dumping sites. This iterative and bottom-up approach, as applied in the French regulatory context, fulfils international recommendation requirements, and especially OSPAR Convention guidelines. This multidisciplinary manual is designed for scientists, engineers and managers working in marine port environments.

Keywords : dredging, dumping, risk assessment, endofauna indices, monitoring

Sommaire

Introduction - Environmental impacts of port dredging
Contaminants in sediments
Biotic indices in sedimentary environments
The I2EC, Index for evaluation of the coastal endofauna
An integrated approach to impact assessment: risk scores, toxicity assays, biotic indices
Monitoring of contaminant inputs in dumping sites at sea

Voir tout

Replier

Caractéristiques techniques

	PAPIER
Éditeur(s)	IFREMER
Auteur(s)	Claude Alzieu
Collection	Comportements des polluants
Parution	06/04/2005
Nb. de pages	128
Format	16 x 24
Couverture	Broché
Poids	310g
Intérieur	Noir et Blanc
EAN13	9782844331427
ISBN13	978-2-84433-142-7