Fate and tidal transport of butyltin and mercury compounds in the waters of the tropical Bach Dang Estuary (Haiphong, Vietnam) - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Marine Pollution Bulletin Année : 2012

Fate and tidal transport of butyltin and mercury compounds in the waters of the tropical Bach Dang Estuary (Haiphong, Vietnam)

Résumé

In this work, two field campaigns were performed in July 2008 (wet season) and March 2009 (dry season) to produce original data on the concentration, partition and distribution of mercury and butyltin compounds along the tropical Bach Dang Estuary located in North Vietnam (Haiphong, Red River Delta). The results demonstrate that mercury and butyltin speciation in the surface waters of this type of tropical estuary is greatly affected by the drastic changes in the seasonal conditions. During high river discharge in the wet season, there was a large estuarine input of total Hg and tributyltin, while the longer residence time of the waters during the dry season promotes increasing MMHg formation and TBT degradation. Although most of the Hg and TBT is transported into the estuary from upstream sources, tidal cycle measurements demonstrate that this estuary is a significant source of TBT and MMHg during the wet (∼3 kg TBT/day) and dry (∼3 g MMHg/day) seasons.

Domaines

Océanographie

Dates et versions

hal-00787708 , version 1 (12-02-2013)

Identifiants

Citer

Patricia Navarro, David Amouroux, Nghi Duong Thanh, Emma Rochelle Newall, Sylvain Ouillon, et al.. Fate and tidal transport of butyltin and mercury compounds in the waters of the tropical Bach Dang Estuary (Haiphong, Vietnam). Marine Pollution Bulletin, 2012, 64 (9), pp.1789-1798. ⟨10.1016/j.marpolbul.2012.05.036⟩. ⟨hal-00787708⟩
196 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More