Effect of wastewater irrigation as an alternative irrigation resource on heavy metal accumulation in ginger (Zingiber officinale Rosc.) and human health risk from consumption

Cadmium (Cd) is a highly carcinogenic metal that plays an important role in the risk management of soil pollution. In this study, 153 soil samples were collected from a coal chemical plant in northwest China, and the human health risks associated with Cd were assessed through multiple exposure pathways. Meanwhile, by the Kriging interpolation method, the spatial distribution and health risks of Cd were explored. The results showed that the average concentration of Cd in the soil was 0.540 mg/kg, which was 4.821 and 5.567 times that of the soil background value in Ningxia and China, respectively. In comparison, the concentration of Cd in the soil was below the national soil environmental quality three-level standard (1.0 mg/kg). In addition, health risk assessment results showed that the total carcinogenic risk of Cd was 1.269 × 10−6–2.189 × 10−6, both above the acceptable criteria (1 × 10−6), while the hazard quotient was within the acceptable level. Oral intake and ingestion of soil particles were the main routes of exposure, and the carcinogenic risk control value of oral intake was the lowest (0.392 mg/kg), which could be selected as the strict reference of the safety threshold for Cd in the coal chemical soil. From Kriging, a prediction map can be centrally predicted on heavy metal pollution in the area surrounding the coal entrance corridor and pedestrian entrance. This study can provide a theoretical basis for the determination of the heavy metal safety threshold of the coal chemical industry in China.

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Human health risk of heavy metal contamination in groundwater and source apportionment

International Journal of Environmental Science and Technology ◽

10.1007/s13762-021-03611-9 ◽

2021 ◽

Author(s):

Z. Iqbal ◽

F. Abbas ◽

A. Mahmood ◽

M. Ibrahim ◽

M. Gul ◽

...

Keyword(s):

Heavy Metal ◽

Health Risk ◽

Human Health ◽

Source Apportionment ◽

Metal Contamination ◽

Heavy Metal Contamination ◽

Human Health Risk

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An Investigation of the Soil Property Changes and Heavy Metal Accumulation in Relation to Long-term Wastewater Irrigation in the Semi-arid Region of Iran

Soil and Sediment Contamination An International Journal ◽

10.1080/15320383.2011.609202 ◽

2011 ◽

Vol 20 (7) ◽

pp. 841-856 ◽

Cited By ~ 9

Author(s):

S. Rezapour ◽

A. Samadi ◽

Habib Khodaverdiloo

Keyword(s):

Heavy Metal ◽

Arid Region ◽

Soil Property ◽

Metal Accumulation ◽

Heavy Metal Accumulation ◽

Wastewater Irrigation ◽

Semi Arid Region ◽

Property Changes ◽

Semi Arid

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Absorption and Distribution of Heavy Metal in Erigeron breviscapus (Vant) Hand-Mazz

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.295-298.2364 ◽

2013 ◽

Vol 295-298 ◽

pp. 2364-2370 ◽

Cited By ~ 1

Author(s):

Hua Bin Xiong ◽

Ming Hong Chen ◽

Xin Xiang A ◽

Meng Sheng Chen ◽

Yu Cheng Chen ◽

...

Keyword(s):

Heavy Metal ◽

Metal Accumulation ◽

Plant Root ◽

Human Health Risk ◽

Heavy Metal Concentration ◽

Heavy Metal Accumulation ◽

Erigeron Breviscapus ◽

Potential Human Health Risk ◽

Potential Human Health ◽

Selection Of

Heavy metal accumulation is effect normal plant growth, and brings potential human health risk in edible and medicinal plants. Erigeron breviscapus is a famous and important traditional China medicine plant, but research of absorption and accumulation for heavy metal is very limited, however that will help the guarantee of quality and food safety as medicine, and offer cultivation guidance and selection of main medicinal parts. The results showed that in pollution-free soil four heavy metals (lead, chromium, cadmium and cuprum) are low concentration in Erigeron breviscapus, but with an increase of heavy metal concentration in soil its amount showed a rising trend in different organs. Lead and chromium enriched mainly by plant root, but cadmium and cuprum easily transfer into above-ground parts because of strongly translocation ability themselves. Therefore cultivate of medicine materials must select pollution-free soil to avoid direct and indirect danger from heavy metal pollution.

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