Accumulation of Heavy Metals in Vegetable Species Planted in Contaminated Soils and the Health Risk Assessment

Zhou, Hang; Yang, Wen-Tao; Zhou, Xin; Liu, Li; Gu, Jiacun; Wang, Wenlei; Zou, Jia-Ling; Tian, Tao; Peng, Ping; Liao, Bo-Han

doi:10.3390/ijerph13030289

Cited by 370 publications

(222 citation statements)

References 46 publications

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“…Higher THQ for Cd, Pb, and Ni were reported by Singh et al, (2010) in vegetables from waste water irrigated area. Higher THQ for Cd and Pb in an area near a lead (Pb) and antimony (Sb) smelter in Nanning, China, was also reported by Cui et al (2004) and Zhou et al (2016) in vegetable species planted in contaminated soils. However, for special populations, such as those with a weak constitution, those that were sensitive, and women that were pregnant, the potential health risks of heavy metal accumulation through vegetable consumption were likely to be higher than for the normal population.…”

Section: Nd-not Detectedsupporting

confidence: 56%

Potential human health risk assessment of heavy metals intake via consumption of some leafy vegetables obtained from four market in Lagos Metropolis, Nigeria

Adedokun¹,

Njoku²,

Akinola³

et al. 2016

Journal of Applied Sciences and Environmental Management

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This work investigated six heavy metals (Pb, Cr, Zn, Cd, Ni and Cu) accumulation in five popular leafy vegetables: Telferia occidentalis (fluted pumpkin), Talinum triangulare (waterleaf), Ocimum gratissimum (scent leaves), Celosia argentea (plumed cockscomb), and Amaranthus viridis (slender amaranth) obtained from 4 popular markets in Lagos metropolis using an atomic absorption spectrophotometer (AAS), and evaluate the human health risks of their consumption. Heavy metals content in vegetables across the markets ranged as follow; Cd (0.05 -0.20 mg/kg); Pb (0.34 -5.44 mg/kg), .80 mg/kg), Cr (0.25 -1.51 mg/kg), Ni (0.13 -2.91 mg/kg) and Cu (2.34 -14.08 mg/kg). The concentrations of all metals are quite generally lower than the permissible levels by FAO/WHO in vegetables except for Pb. Statistical analysis of levels of the studied metals in A. viridis, T. occidentalis, C. argentea, and O. gratissimum in all the markets sample showed significant differences in levels of Zn, Cr, Cu and Ni (p<0.05). To assess the the health risk of the inhabitants of Lagos and the environs due to heavy metal intake from these vegetables consumption., the daily intake of metals (DIM), health risk index (HRI), and target hazard quotient (THQ) were calculated. The daily intake of metals in vegetables species for Zn (0.51 -1.46 mg/kg) and Ni (0.05 -0.22 mg/kg) are significantly lower than the recommended daily intake of metals and the upper tolerable daily intake level (UL). However, DIM of Cd (0.004 -0.017 mg/kg) and Pb (0.046 -0.182 mg/kg) exceed the recommended DIM but fall within the upper tolerable daily level. Cr (0.048 -0.082 mg/kg) is lower than the recommended oral reference dose (RFD) of 1.5 mg/kg (USEPA, 2010). The THQ values range showed that Cd was 0.048 -0.192, Pb was 0.150 -0.587, Zn was 0.021 -0.190, Cr was 0.0001 -0.001, Ni was 0.050 -0.120 and Cu was 0.148 -0.239. This result reflected the risk associated with exposure for the period of life expectancy considered, and the inhabitants are highly exposed to health risks associated to these metals in the order Pb > Cu > Cd > Ni > Zn > Cr. The THQ in all metals is less than 1 in all the vegetables species; therefore, it does not pose serious health risk concern. However, vegetable consumption was just one part of food consumption, the potential health risks for residents might actually be higher than in this study when other routes of heavy metals intake are considered. ©JASEM http://dx.doi.org/10.4314/jasem.v20i3.6

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Section: Nd-not Detectedsupporting

confidence: 56%

Potential human health risk assessment of heavy metals intake via consumption of some leafy vegetables obtained from four market in Lagos Metropolis, Nigeria

Adedokun¹,

Njoku²,

Akinola³

et al. 2016

Journal of Applied Sciences and Environmental Management

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“…Zhou et al, 2016). Consequently, the total dietary intake of cadmium might be higher than the current estimation for the coastal communities of West Kalimantan, especially for the children age group.…”

Section: Discussionmentioning

confidence: 46%

Contribution of Fish Consumption to Cadmium and Lead Intakes in Coastal Communities of West Kalimantan, Indonesia

Arifin

Falahudin

2017

Mar. Res. Indonesia

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Consumption of both marine and freshwater fishes is considered as a healthy way to obtain diet, but the ingestion of contaminated fishes remains a concern. Our study is conducted to asses cadmium (Cd) and lead (Pb) contents in various fishes consumed by coastal communities in six districts of West Kalimantan (Indonesia) and their health risks to the communities. Specifically, the objectives of this study are to determine the average weekly intakes (AWIs) of cadmium and lead based on dietary intake of fishes, then estimate health risk associated with fish consumption using the risk quotients (RQs) method. We also use food frequency questionnaires (FFQ) filled by 696 respondents to assess fish consumption habit of the communities in West Kalimantan who consumed up to 30 fish species in 2012 and 2013. Our results show that their average weekly fish consumption is 135.7 ± 66.3 g/week, which contributes to AWI values of 0.38 ± 0.55 µg/kg body weight (bw) per week for Cd and 0.87 ± 0.65 µg/kg bw per week for Pb. The RQ values indicate a low risk of Pb coming from fish consumption, but the RQ value for Cd is high for the children age group. In conclusion, fish consumption in the six districts of coastal communities in West Kalimantan generally does not pose any health risk from Pb. Conversely, Cd intake from fish consumption has a potential risk for children. As such, regular monitoring and additional studies are needed on potential contribution of Cd intake from other food sources.

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“…The content of Cd was not very low in three vegetables [ Figure 7(a)] although the concentration in soil and compost were very low because Cd could be easily absorbed by roots and transported to shoots where it is unevenly distributed in plant [38]. The accumulation content of Cd in three vegetables increased with the addition amount of compost because the ability of vegetables with large leaves have high ability to uptake, transport and accumulate heavy metals [39].…”

Section: Effect Of Compost On the Accumulations Of Heavy Metals In Vementioning

confidence: 99%

Effects of Composted Sewage Sludge on Soil Properties and Vegetable Quality from Abandoned Quarries

Ma¹,

Sun²,

Guo³

et al. 2016

JRST

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ABSTRACT:The effects of composted sewage sludge on soil properties and vegetable quality were investigated in a field experiment for two years. The soil was amended with 3, 15 or 30 t/ha of compost. The results indicated that the vegetable net production increased with the amendment dosage of 3 and 15 t/ha, while the net production decreased in the application amount of 30 t/ha. However, the Vitamin C (Vc) content of the three vegetables was reverse. The heavy metals concentrations in vegetables and soils could meet the national food and soil environmental quality standards of China (II). The accumulation concentrations of Cd, As and Hg in the three vegetables increased with the increasing amendment dosage, while the concentrations of Cr and Pb changed significantly with different types of vegetable. Heavy metal accumulation ability was in the order of celery > lettuce > cabbage, except for Cr. The accumulation of different heavy metals in soil was related to the migration characteristic of heavy metals, plant absorption capacities and the amendment dosage. The concentration of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in the soils increased with addition of 15 t/ha and 30 t/ha, while the change was not statistically significant between the amendment of 3 t/ha and the control. The concentration of PCBs and PAHs in vegetables was positively correlated with compost addition amounts. The dissipation rate of PCBs and PAHs followed the principle of first-order kinetics, and vegetables could improve the dissipation rate. Therefore, the application of compost as soil amendment to abandoned quarries is a feasible strategy for sludge disposal because appropriate amount of compost could enhance the soil fertility, while the long-term application should be considered seriously.

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Accumulation of Heavy Metals in Vegetable Species Planted in Contaminated Soils and the Health Risk Assessment

Cited by 370 publications

References 46 publications

Potential human health risk assessment of heavy metals intake via consumption of some leafy vegetables obtained from four market in Lagos Metropolis, Nigeria

Potential human health risk assessment of heavy metals intake via consumption of some leafy vegetables obtained from four market in Lagos Metropolis, Nigeria

Contribution of Fish Consumption to Cadmium and Lead Intakes in Coastal Communities of West Kalimantan, Indonesia

Effects of Composted Sewage Sludge on Soil Properties and Vegetable Quality from Abandoned Quarries

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