洗净和未洗净的路边黑莓（Rubus fruticose L.）的重金属污染（铜、铅和镉）。

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Integrated Environmental Assessment and Management Pub Date : 2024-07-30 DOI:10.1002/ieam.4981

Lauren K. Chamberlain, Hannah Scott, Naomi Beddoe, Naomi L. J. Rintoul-Hynes

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引用次数: 0

摘要

觅食可为个人、社会和环境带来诸多益处。随着英国绿地的减少，路边绿化带有机会成为宝贵的觅食资源；然而，公众对路边觅食的安全性表示担忧。人类摄入的重金属污染物，如铜 (Cu)、铅 (Pb) 和镉 (Cd)，源自交通活动，会对人体产生毒性影响。因此，人们制定了小型水果中铜、铅和镉的最高食用指导限值。然而，有关路边牧草中重金属浓度以及表面冲洗对浓度影响的研究却很有限。本研究对英国肯特郡一条主干道沿线已清洗和未清洗的野生黑莓（Rubus fruticose L.）中的铜、铅和镉进行了检测，并将检测值与最高指导限值进行了比较。在所有 44 个样本中，铜、铅和镉的浓度都远低于最高指导限值或每日参考摄入量 (RI) 值。如果觅食者每天食用一份（80 克）浆果，则每个样本中的铜和铅浓度都低于每日最大摄入量，但如果每天食用更多数量的浆果（如 1 千克），则铜和铅的摄入量可能会超过指导限值（分别为 1 毫克和 0.1 毫克），但镉的摄入量不会超过指导限值（0.03 毫克）。清洗并不会明显降低黑莓中铜（p = 0.174）或镉（p = 0.752）的浓度，但会明显降低铅的浓度（p = 0.752）。

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Heavy metal contamination (Cu, Pb, and Cd) of washed and unwashed roadside blackberries (Rubus fruticose L.)

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Heavy metal contamination (Cu, Pb, and Cd) of washed and unwashed roadside blackberries (Rubus fruticose L.)

Foraging provides a multitude of individual, social, and environmental benefits. With green spaces decreasing in the United Kingdom, there is an opportunity for roadside verges to become valuable foraging resources; however, there is public concern over the safety of roadside forage. Human ingestion of heavy metal contaminants, such as copper (Cu), lead (Pb), and cadmium (Cd), originating from traffic activity, induces toxic effects in the body. Therefore, maximum Cu, Pb, and Cd guideline limits for human consumption in small fruits were established. However, studies of heavy metal concentrations in roadside forage and the effects of surface washing on concentrations are limited. This study examined Cu, Pb, and Cd in washed and unwashed wild blackberries (Rubus fruticose L.) along a main road in Kent, UK, and compares the values with maximum guideline limits. In all 44 samples, Cu, Pb and Cd concentrations were well below the maximum guideline limit or daily reference intake (RI) value. Cu and Pb concentrations were below the maximum daily intake in every sample if foragers eat one portion (80 g) of berries a day, but consuming a larger quantity of berries per day (e.g., 1 kg) could lead to an intake above the guideline limit for Cu (1 mg) and Pb (0.1 mg), but not Cd (0.03 mg). Washing did not significantly reduce the concentrations of Cu (p = 0.174) or Cd (p = 0.752) in blackberries, but did significantly reduce the Pb concentration (p < 0.001). However, Pb concentration was below maximum guideline limits for every sample regardless of washing treatment. Thus, wild blackberries collected from the roadside were suitable for human consumption, although the findings are not representative of all foraged berries or road networks. Integr Environ Assess Manag 2024;20:2107–2115. © 2024 The Author(s). Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).

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来源期刊

Integrated Environmental Assessment and Management ENVIRONMENTAL SCIENCESTOXICOLOGY&nbs-TOXICOLOGY

CiteScore

5.90

自引率

6.50%

发文量

156

期刊介绍： Integrated Environmental Assessment and Management (IEAM) publishes the science underpinning environmental decision making and problem solving. Papers submitted to IEAM must link science and technical innovations to vexing regional or global environmental issues in one or more of the following core areas: Science-informed regulation, policy, and decision making Health and ecological risk and impact assessment Restoration and management of damaged ecosystems Sustaining ecosystems Managing large-scale environmental change Papers published in these broad fields of study are connected by an array of interdisciplinary engineering, management, and scientific themes, which collectively reflect the interconnectedness of the scientific, social, and environmental challenges facing our modern global society: Methods for environmental quality assessment; forecasting across a number of ecosystem uses and challenges (systems-based, cost-benefit, ecosystem services, etc.); measuring or predicting ecosystem change and adaptation Approaches that connect policy and management tools; harmonize national and international environmental regulation; merge human well-being with ecological management; develop and sustain the function of ecosystems; conceptualize, model and apply concepts of spatial and regional sustainability Assessment and management frameworks that incorporate conservation, life cycle, restoration, and sustainability; considerations for climate-induced adaptation, change and consequences, and vulnerability Environmental management applications using risk-based approaches; considerations for protecting and fostering biodiversity, as well as enhancement or protection of ecosystem services and resiliency.