Topics

Distribution, accumulation, and potential risks of heavy metals in soil and tea leaves from geologically different plantations.

08:00 EDT 21st March 2020 | BioPortfolio

Summary of "Distribution, accumulation, and potential risks of heavy metals in soil and tea leaves from geologically different plantations."

Risk assessment regarding heavy metals in tea is crucial to ensure the health of tea customers. However, the effects of geological difference on distribution of heavy metals in soils and their accumulation in tea leaves remain unclear. This study aimed to estimate the impacts of geological difference on distribution of cadmium (Cd), lead (Pb), thallium (Tl), mercury (Hg), arsenic (As), antimony (Sb), chromium (Cr), nickel (Ni), and manganese (Mn) in soils and their accumulation in tea leaves, and further evaluate their health risks. 22 soils and corresponding young tea leaves (YTL) and old tea leaves (OTL), from geologically different plantations, were sampled and analyzed. Results showed that heavy metals concentrations in soils, derived from Permian limestone and Cambrian weakly mineralized dolomite, were obviously greater than those from Silurian clastic rock. The geological difference controlled the distribution of soil heavy metals to a large extent. Contents of Cd, Tl, and Mn in tea leaves mainly depended on their contents in soils. Soil Hg, Pb, As, and Sb contents may not be the only influencing factors for their respective accumulation in tea leaves. More attentions should be paid to soil acidification of tea plantations to ensure the tea quality security. Target hazard quotients (THQ) of Cd, Pb, Tl, Hg, As, Sb, Cr, and Ni and hazard index (HI) via tea intake were below one, indicating no human health risk. The non-mineralized Silurian area was less at risk of heavy metals accumulation in tea leaves than the Cambrian metallogenic belt and the Permian Cd-enriched zone. This study could provide an important basis to understand and mitigate the potential risks of heavy metals in tea.

Affiliation

Journal Details

This article was published in the following journal.

Name: Ecotoxicology and environmental safety
ISSN: 1090-2414
Pages: 110475

Links

DeepDyve research library

PubMed Articles [20334 Associated PubMed Articles listed on BioPortfolio]

Influencing pathways of soil microbial attributes on accumulation of heavy metals in brassica (Brassica campestris L. ssp.chinensis var.utilis Tsen et Lee) leaves.

Microbial attributes have a great impact on soil heavy metal bioavailability, yet their influencing pathway on heavy metal accumulation in crop plants remains elusive. This study was aimed to analyze ...

Distribution and Bioavailability of Heavy Metals in Soil Aggregates from the Fenhe River Basin, China.

Accumulation, bioavailability and potential ecological risk of seven heavy metals - chromium (Cr), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As), cadmium (Cd) and lead (Pb) - have been analyzed in...

Bioaccumulation Factor of Selected Heavy Metals in Zea mays.

Health risks arising from heavy metal pollution have attracted global attention. As a result, many studies on the accumulation of heavy metals in soil-plant systems have performed human health risk as...

Biochar applied to soil under wastewater irrigation remained environmentally viable for the second season of potato cultivation.

The environmental effectiveness of plantain peel biochar in the second season of its application to soil was studied using outdoor lysimeters (0.45 m diameter x 1.0 m height) packed with sandy soil,...

A case study on pollution and a human health risk assessment of heavy metals in agricultural soils around Sinop province, Turkey.

In the present study, the concentration levels of heavy metals such as Cr, Fe, Ni, Cu, Zn, As and Pb in soil samples collected from 88 sampling locations around Sinop Province, Turkey were measured us...

Clinical Trials [5081 Associated Clinical Trials listed on BioPortfolio]

Influence of Heavy Metals Exposure on in Vitro Fertilization (IVF) Outcome

Exposure to heavy metals may interfere with basic cellular functions, including DNA synthesis. The aim of the study is to correlate heavy metals concentration in body fluids of repr...

Heavy Metals, Obesity and Cardiovascular Risk - Ancillary to Look AHEAD

To evaluate the relationship of baseline toenail chromium concentrations to weight loss, as well as the interaction between heavy metals and the beneficial effects of weight loss.

Trace Elements and Heavy Metals at PPROM

Objectives: To evaluate maternal serum trace elements and heavy metals namely, aluminum (Al), chromium (Cr), manganese (Mn), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As),...

Vanadium in Late-onset Preeclampsia

Introduction: Cadmium, lead and vanadium important pollutants produced from anthropogenic activities, has been suggested to be embryotoxic and fetotoxic in a lot of studies. However, the c...

Investigation of Wet Cupping Therapy on Heavy Metal Levels of Steel Industry Workers

This interventional study investigates the efficacy of Wet cupping therapy on heavy metal levels.The levels of the selected heavy metals will be measured in the blood samples obtained from...

Medical and Biotech [MESH] Definitions

Metals with high specific gravity, typically larger than 5. They have complex spectra, form colored salts and double salts, have a low electrode potential, are mainly amphoteric, yield weak bases and weak acids, and are oxidizing or reducing agents (From Grant & Hackh's Chemical Dictionary, 5th ed)

A species of Bacillus that occurs in soil and marine sediments. Many strains are alkalophilic and able to metabolize HEAVY METALS; it may therefore be a useful species for ENVIRONMENTAL BIODEGRADATION.

Deposits of ADIPOSE TISSUE throughout the body. The pattern of fat deposits in the body regions is an indicator of health status. Excess ABDOMINAL FAT increases health risks more than excess fat around the hips or thighs, therefore, WAIST-HIP RATIO is often used to determine health risks.

Accumulation of a drug or chemical substance in various organs (including those not relevant to its pharmacologic or therapeutic action). This distribution depends on the blood flow or perfusion rate of the organ, the ability of the drug to penetrate organ membranes, tissue specificity, protein binding. The distribution is usually expressed as tissue to plasma ratios.

Conditions associated with damage or dysfunction of the nervous system caused by exposure to heavy metals, which may cause a variety of central, peripheral, or autonomic nervous system injuries.

Quick Search


DeepDyve research library

Searches Linking to this Article