Spatial Distribution and Contamination Assessment of Heavy Metals in Coastal Wetland Sediments

E3S Web of Conferences 2026 Open access

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Authors: Xinyi Lu, Tianlong Deng, Lixiao Wu, Runzhi Cui, Bao Xiang, Hongliang Wang, Gaohui Liu
DOI: 10.1051/e3sconf/202670701008
Cited by: 1
References: 13

Abstract

This study assessed heavy metal distribution and ecological risks across 28 surface sediment sites (0–20 cm) in the Tianjin Binhai New Area. Average concentrations met Class I marine standards. Independent t-tests showed no significant differences (p > 0.05) between riverine and coastal wetlands . However, Cd, Hg, and Pb exhibited high variability, linked to intensive shipping and industrial runoff from the Port of Tianjin, Lingang, and Dagang zones . While integrated risk was low, Hg posed localized moderate risk. Seasonal discharge and redox variations may further influence metal dynamics . These findings provide a refined baseline for port-industrial bays.

Fields of Study & Subjects

Heavy metals in environment Mercury impact and mitigation studies Marine and coastal ecosystems

Publication details

Journal / source
E3S Web of Conferences
Publisher
EDP Sciences
Volume
707
Pages
01008–01008
Publication date
1 January 2026
Language
FR