Lead pollution of coastal sediments by ceramic waste

MARINE POLLUTION BULLETIN

卷:138

Article

Turner, Andrew¹ 

[1] Univ Plymouth, Sch Geog Earth & Environm Sci, Plymouth PL4 8AA, Devon, England

关键词: Ceramic fragments;    Glaze;    Lead;    Sediments;    Contamination;   

DOI  :  10.1016/j.marpolbul.2018.11.013

来源: Elsevier

【 摘 要 】

Ceramic fragments and fractionated (< 2 mm) sediment have been sampled from two beaches in southwest England, along with sediment from a control beach where ceramic waste was lacking. Analysis of the glazed ceramic surfaces by X-ray fluorescence (XRF) spectrometry returned concentrations of Pb up to 729,000 mg kg(-1), while XRF analysis of sediment samples revealed high but heterogeneous concentrations of Pb at the two sites impacted by ceramic waste (median = 292 and 737 mg kg(-1)) compared with the control beach (median 20 mg kg(-1)). These observations are attributed to the disposal of contemporary and historical ceramic products, and the subsequent attrition of material and contamination of local sediment. Extraction of a milled ceramic composite (Pb = 2780 mg kg(-1)) by 1 M HCl, revealed a high (34%) environmental mobility and availability of Pb; extraction in a solution of protein, however, suggested a low (0.1%) bioaccessibility to sediment-ingesting invertebrates.

【 授权许可】

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