Health risk assessment of textile effluent reuses as irrigation water in leafy vegetable Basella alba

Purpose The aim of this research was to assess the health risk of textile wastewater reuse as irrigation water on leafy vegetable ( Basella alba ) by comparing variable growth rate in different ration of wastewater and freshwater irrigation and assess their soil-to-plant transfer factor (TF) and hea...

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Bibliographic Details
Published in:International journal of recycling of organic waste in agriculture 2016-06, Vol.5 (2), p.113-123
Main Authors: Shammi, Mashura, Kashem, Mohammad Abul, Rahman, Md. Mostafizur, Hossain, Md. Delwar, Rahman, Rashadur, Uddin, M. Khabir
Format: Article
Language:English
Subjects:
Aquatic Pollution
Basella alba
Chemical oxygen demand
Developing countries
Earth and Environmental Science
Environment
Groundwater
Health risk assessment
Health risk index (HRI)
Health risks
Heavy metals
Irrigation
LDCs
Original Research
Pollution
Process controls
Salinity
Soil contamination
Soil fertility
Textile wastewater reuses
Transfer factor (TF)
Urban areas
Vegetables
Waste Water Technology
Water Management
Water Pollution Control
Water shortages
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Summary:Purpose The aim of this research was to assess the health risk of textile wastewater reuse as irrigation water on leafy vegetable ( Basella alba ) by comparing variable growth rate in different ration of wastewater and freshwater irrigation and assess their soil-to-plant transfer factor (TF) and health risk index (HRI). Methods Pot experiments were laid out with five treatments including control with three replications with different irrigation schemes with textile wastewater collected from the untreated point source. The irrigation scheme was, 100 % groundwater as control with four treatments as 75 % groundwater: 25 % wastewater, 50 % groundwater: 50 % wastewater, 25 % groundwater: 75 % wastewater and 100 % wastewater. Results Soil-to-plant TF in different treatments including control were in the order of Pb (1.0–1.7) > Cu (1.3–1.5) > Cd (0.8–1.0) > Zn (0.1–1.1). TF values of Pb and Cu in the range from 1 to 1.7 indicating their accumulation in B. alba plants and their potential health risk by dietary exposure. The HRI for individual metal as well as cumulative HRI of the metals was less than unity (0.33) which indicated the consumption of the vegetables was considered to be safe for one harvest. Conclusion Over many seasons of irrigation with wastewater, level of salinity and heavy metals can accumulate on the agriculture land and their long term consumption may link to a chronic health risk. Hence, consumption of these vegetables on regular basis should be avoided.
ISSN:2195-3228
2251-7715
DOI:10.1007/s40093-016-0122-x