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Assessment of trace metal bioavailability in garden soils and health risks via consumption of vegetables in the vicinity of Tongling mining area, China.
Ecotoxicol Environ Saf. 2013 Apr; 90:103-11.EE

Abstract

Environmental pollution due to mining activities has been reported in many countries. In this study, 283 vegetable and 44 corresponding garden soil samples were collected in the vicinity of the Tongling mining area, China. The aim was to evaluate the bioavailability of trace metals (Cu, Zn, Pb and Cd) to vegetables by comparing different methods (trace metals in DTPA, EDTA, HCl, NH(4)NO(3), NH(4)OAC aqueous solutions and total metals in garden soils), and assess the potential health risks of trace metals to the local population via vegetable consumption. The results showed that the mean values of total Cu and Cd in the soil samples exceeded the Grade II national standard in China. Average concentrations of Cd and Pb in some vegetable samples were higher than the maximum permissible concentration in China. The transfer factors for trace metals in different vegetables showed a trend of Cd>Zn>Cu> Pb. Asteraceae vegetables had stronger metal uptake than Liliaceae. The total target hazard quotient (THQ) value was greater than 1, suggesting that trace metals in vegetables could present some potential health risks. The effectiveness of the studied methods for estimating soil metal bioavailability was generally dependent on the particular metal and vegetable species. Overall, 1.0M NH(4)OAC provided the best estimate of Cd and Zn bioavailability in multi-elemental contaminated soils. None of the studied soil metal extraction methods appeared suitable for measuring Cu or Pb bioavailability, especially for Pb, which showed almost no correlation between metal concentration in soil and vegetables.

Authors+Show Affiliations

School of Resources and Environmental Engineering, Anhui University, Hefei, Anhui 230601, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23332794

Citation

Xu, Decong, et al. "Assessment of Trace Metal Bioavailability in Garden Soils and Health Risks Via Consumption of Vegetables in the Vicinity of Tongling Mining Area, China." Ecotoxicology and Environmental Safety, vol. 90, 2013, pp. 103-11.
Xu D, Zhou P, Zhan J, et al. Assessment of trace metal bioavailability in garden soils and health risks via consumption of vegetables in the vicinity of Tongling mining area, China. Ecotoxicol Environ Saf. 2013;90:103-11.
Xu, D., Zhou, P., Zhan, J., Gao, Y., Dou, C., & Sun, Q. (2013). Assessment of trace metal bioavailability in garden soils and health risks via consumption of vegetables in the vicinity of Tongling mining area, China. Ecotoxicology and Environmental Safety, 90, 103-11. https://doi.org/10.1016/j.ecoenv.2012.12.018
Xu D, et al. Assessment of Trace Metal Bioavailability in Garden Soils and Health Risks Via Consumption of Vegetables in the Vicinity of Tongling Mining Area, China. Ecotoxicol Environ Saf. 2013;90:103-11. PubMed PMID: 23332794.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Assessment of trace metal bioavailability in garden soils and health risks via consumption of vegetables in the vicinity of Tongling mining area, China. AU - Xu,Decong, AU - Zhou,Ping, AU - Zhan,Jing, AU - Gao,Yi, AU - Dou,Changming, AU - Sun,Qingye, Y1 - 2013/01/17/ PY - 2012/09/27/received PY - 2012/12/18/revised PY - 2012/12/19/accepted PY - 2013/1/22/entrez PY - 2013/1/22/pubmed PY - 2013/6/8/medline SP - 103 EP - 11 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 90 N2 - Environmental pollution due to mining activities has been reported in many countries. In this study, 283 vegetable and 44 corresponding garden soil samples were collected in the vicinity of the Tongling mining area, China. The aim was to evaluate the bioavailability of trace metals (Cu, Zn, Pb and Cd) to vegetables by comparing different methods (trace metals in DTPA, EDTA, HCl, NH(4)NO(3), NH(4)OAC aqueous solutions and total metals in garden soils), and assess the potential health risks of trace metals to the local population via vegetable consumption. The results showed that the mean values of total Cu and Cd in the soil samples exceeded the Grade II national standard in China. Average concentrations of Cd and Pb in some vegetable samples were higher than the maximum permissible concentration in China. The transfer factors for trace metals in different vegetables showed a trend of Cd>Zn>Cu> Pb. Asteraceae vegetables had stronger metal uptake than Liliaceae. The total target hazard quotient (THQ) value was greater than 1, suggesting that trace metals in vegetables could present some potential health risks. The effectiveness of the studied methods for estimating soil metal bioavailability was generally dependent on the particular metal and vegetable species. Overall, 1.0M NH(4)OAC provided the best estimate of Cd and Zn bioavailability in multi-elemental contaminated soils. None of the studied soil metal extraction methods appeared suitable for measuring Cu or Pb bioavailability, especially for Pb, which showed almost no correlation between metal concentration in soil and vegetables. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/23332794/Assessment_of_trace_metal_bioavailability_in_garden_soils_and_health_risks_via_consumption_of_vegetables_in_the_vicinity_of_Tongling_mining_area_China_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0147-6513(12)00479-4 DB - PRIME DP - Unbound Medicine ER -