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Sci Total Environ. 2015 Dec 15;537:470-8. doi: 10.1016/j.scitotenv.2015.07.159. Epub 2015 Aug 29.

Evaluation of the mercury contamination in mushrooms of genus Leccinum from two different regions of the world: Accumulation, distribution and probable dietary intake.

Author information

1
Gdańsk University, Laboratory of Environmental Chemistry & Ecotoxicology, 63 Wita Stwosza Str., 80-952 Gdańsk, Poland. Electronic address: jerzy.falandysz@ug.edu.pl.
2
Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, 650200 Kunming, China.
3
Gdańsk University, Laboratory of Environmental Chemistry & Ecotoxicology, 63 Wita Stwosza Str., 80-952 Gdańsk, Poland.
4
College of Resources and Environment, Yuxi Normal University, 653100 Yuxi, Yunnan, China.
5
College of Agronomy and Biotechnology, Yunnan Agricultural University, 650201 Kunming, China.

Abstract

This study focused on investigation of the accumulation and distribution of mercury (Hg) in mushrooms of the genus Leccinum that emerged on soils of totally different geochemical bedrock composition. Hg in 6 species from geographically diverse regions of the mercuriferous belt areas in Yunnan of SW China, and 8 species from the non-mercuriferous regions of Poland in Europe was measured. Also assessed was the probable dietary intake of Hg from consumption of Leccinum spp., which are traditional organic food items in SW China and Poland. The results showed that L. chromapes, L. extremiorientale, L. griseum and L. rugosicepes are good accumulators of Hg and the sequestered Hg in caps were up to 4.8, 3.5, 3.6 and 4.7 mg Hg kg(-1) dry matter respectively. Leccinum mushrooms from Poland also efficiently accumulated Hg with their average Hg content being an order of magnitude lower due to low concentrations of Hg in forest topsoil of Poland compared to the elevated contents in Yunnan. Consumption of Leccinum mushrooms with elevated Hg contents in Yunnan at rates of up to 300 g fresh product per week during the foraging season would not result in Hg intake that exceeds the provisional weekly tolerance limit of 0.004 mg kg(-1) body mass, assuming no Hg ingestion from other foods.

KEYWORDS:

China; Foraging; Fungi; Leccinum; Poland

PMID:
26322595
DOI:
10.1016/j.scitotenv.2015.07.159
[Indexed for MEDLINE]

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