0f944878beb07254dfffedc18e6e438d agriculture-14-01907.pdf b5fad12b91645615d73917c307320137e47deb00 agriculture-14-01907.pdf 774401a9950682af1101cb2add23816c107138b377116520f3c0a1380143a26e agriculture-14-01907.pdf Title: Assessment of Heavy Metals in Tea Plantation Soil and Their Uptake by Tieguanyin Tea Leaves and Potential Health Risk Assessment in Anxi County in Southeast China Subject: Evaluating heavy metal pollution in tea plantation soil and conducting potential health risk assessments are crucial for ensuring the safety of tea consumers. However, soil heavy metal pollution levels and dietary exposure risk remain poorly understood, and there is no consensus on how soil physicochemical properties affect heavy metal concentrations. In this study, seventy-three soil samples and corresponding tea leaves from main tea-producing regions in Anxi County were analyzed for arsenic (As), chromium (Cr), lead (Pb) and copper (Cu) concentrations. The results showed that mean concentrations of As, Cr, Cu and Pb in the soil did not exceed respective risk screening values in China (GB 15618-2018). The concentrations of As, Cr, Cu and Pb in the tea leaves were within limiting values of the Chinese National Food Safety Standard, and the bioaccumulation factor of heavy metals in descending order was Cu > Pb > As > Cr. The hazard index values of heavy metals indicated no potential human health risk. Soil pH, EAl, EA and AP were the main controlling factors for heavy metal in soil and tea leaves. Cu and Pb concentrations in tea leaves were positively correlated with soil Cu and Pb concentrations. These results provide a scientific basis for effective monitoring and management in tea plantations and for controlling potential risks in tea leaves. Keywords: heavy metal; soil pollution; Tieguanyin tea; transfer; health risk assessment Author: Yunni Chang, Fuying Jiang, Josep Peñuelas, Jordi Sardans and Zhidan Wu Creator: LaTeX with hyperref Producer: pdfTeX-1.40.25 CreationDate: Sun Oct 27 11:17:55 2024 CET ModDate: Sun Oct 27 11:26:53 2024 CET Custom Metadata: no Metadata Stream: no Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 17 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 3529982 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- REUECL+VnURWPalladioL Type 1 Custom yes yes yes 10 0 QRCQKZ+URWPalladioL-Bold Type 1 Custom yes yes yes 16 0 KBIZPL+URWPalladioL-Roma Type 1 Custom yes yes yes 22 0 OMUVJE+URWPalladioL-Ital Type 1 Custom yes yes yes 27 0 ELVRBN+TimesNewRomanPS-BoldItalicMT Type 1C WinAnsi yes yes no 43 0 SWBBCH+CMSY10 Type 1 Builtin yes yes yes 60 0 QOEUNN+CMEX10 Type 1 Builtin yes yes yes 71 0 RFLZJB+CMR10 Type 1 Builtin yes yes yes 76 0 QQXUPP+PazoMath Type 1 Builtin yes yes yes 84 0 CIDFont+F3 CID TrueType Identity-H yes no yes 97 0 CIDFont+F1 CID TrueType Identity-H yes no yes 105 0 CIDFont+F2 CID TrueType Identity-H yes no yes 113 0 CIDFont+F3 CID TrueType Identity-H yes no yes 130 0 CIDFont+F1 CID TrueType Identity-H yes no yes 138 0 CIDFont+F2 CID TrueType Identity-H yes no yes 146 0 CIDFont+F3 CID TrueType Identity-H yes no yes 160 0 CIDFont+F1 CID TrueType Identity-H yes no yes 168 0 CIDFont+F2 CID TrueType Identity-H yes no yes 176 0 CIDFont+F5 CID TrueType Identity-H yes no yes 184 0 CIDFont+F3 CID TrueType Identity-H yes no yes 223 0 CIDFont+F1 CID TrueType Identity-H yes no yes 231 0 CIDFont+F2 CID TrueType Identity-H yes no yes 239 0 Jhove (Rel. 1.28.0, 2023-05-18) Date: 2025-01-29 02:46:51 CET RepresentationInformation: agriculture-14-01907.pdf ReportingModule: PDF-hul, Rel. 1.12.4 (2023-03-16) LastModified: 2024-12-09 14:06:10 CET Size: 3529982 Format: PDF Version: 1.7 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 489 FreeObjects: 1 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: section.1 Item: Title: Materials and Methods Destination: section.2 Children: Item: Title: Study Area and Field Sampling Destination: subsection.2.1 Item: Title: Measurement of Physicochemical Properties and Heavy Metals Destination: subsection.2.2 Item: Title: Bioaccumulation Factor Destination: subsection.2.3 Item: Title: Soil Pollution Quantification Assessment Destination: subsection.2.4 Children: Item: Title: Nemerow Composite Index Method Destination: subsubsection.2.4.1 Item: Title: Potential Ecological Risk Assessment Destination: subsubsection.2.4.2 Item: Title: Health Risk Assessment Destination: subsection.2.5 Item: Title: Statistical Analysis Destination: subsection.2.6 Item: Title: Results Destination: section.3 Children: Item: Title: Soil Physicochemical Properties Destination: subsection.3.1 Item: Title: Soil Heavy Metals and Pollution Evaluation Destination: subsection.3.2 Item: Title: Tea Leaf Heavy Metals and Bioaccumulation Factors Destination: subsection.3.3 Item: Title: Correlations Between Soil Physicochemical Properties and Heavy Metals in Soil and Tea Leaves Destination: subsection.3.4 Item: Title: Human Health Risk Assessment of Heavy Metals in Tea Leaves Destination: subsection.3.5 Item: Title: Discussion Destination: section.4 Children: Item: Title: Soil Heavy Metals Concentrations Destination: subsection.4.1 Item: Title: Tea Leaf Heavy Metals Concentrations Destination: subsection.4.2 Item: Title: Factors Influencing Heavy Metals in Soil and Tea Leaves Destination: subsection.4.3 Item: Title: Health Risk Assessment Destination: subsection.4.4 Item: Title: Conclusions Destination: section.5 Item: Title: References Destination: appendix.A. Info: Title: Assessment of Heavy Metals in Tea Plantation Soil and Their Uptake by Tieguanyin Tea Leaves and Potential Health Risk Assessment in Anxi County in Southeast China Author: Yunni Chang, Fuying Jiang, Josep Peñuelas, Jordi Sardans and Zhidan Wu Subject: Evaluating heavy metal pollution in tea plantation soil and conducting potential health risk assessments are crucial for ensuring the safety of tea consumers. However, soil heavy metal pollution levels and dietary exposure risk remain poorly understood, and there is no consensus on how soil physicochemical properties affect heavy metal concentrations. In this study, seventy-three soil samples and corresponding tea leaves from main tea-producing regions in Anxi County were analyzed for arsenic (As), chromium (Cr), lead (Pb) and copper (Cu) concentrations. The results showed that mean concentrations of As, Cr, Cu and Pb in the soil did not exceed respective risk screening values in China (GB 15618-2018). The concentrations of As, Cr, Cu and Pb in the tea leaves were within limiting values of the Chinese National Food Safety Standard, and the bioaccumulation factor of heavy metals in descending order was Cu > Pb > As > Cr. The hazard index values of heavy metals indicated no potential human health risk. Soil pH, EAl, EA and AP were the main controlling factors for heavy metal in soil and tea leaves. Cu and Pb concentrations in tea leaves were positively correlated with soil Cu and Pb concentrations. These results provide a scientific basis for effective monitoring and management in tea plantations and for controlling potential risks in tea leaves. 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