Author/Authors :
Shammi، Mashura نويسنده Department of Environmental Pollution and Process Control, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, Xinjiang, People’s Republic of China , , Abul Kashem، Mohammad نويسنده Department of Environmental Sciences, Jahangirnagar University, Dhaka 1349, Bangladesh , , Rahman، Md. Mostafizur نويسنده Department of Environmental Sciences, Jahangirnagar University, Dhaka 1349, Bangladesh , , Hossain، Md. Delwar نويسنده Department of Environmental Sciences, Jahangirnagar University, Dhaka 1349, Bangladesh , , Rahman، Rashadur نويسنده Department of Environmental Sciences, Jahangirnagar University, Dhaka 1349, Bangladesh , , Uddin، M. Khabir نويسنده Department of Environmental Sciences, Jahangirnagar University, Dhaka 1349, Bangladesh ,
Abstract :
urpose 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
