Water Quality Pollution Indices to Assess the Heavy Metal Contamination, Case Study: Groundwater Resources of Asadabad Plain In 2012
Journal Title: Archives of Hygiene Sciences - Year 2016, Vol 5, Issue 4
Abstract
Background & Aims of the Study: Due to the increasing pollution of water resources, tow documented methods: the Heavy metal potential index (HPI) and the Heavy metal evaluation index (HEI) were evaluated for their suitability for contamination monitoring of heavy metals (As, Zn, Pb, Cd and Cu) contamination in groundwater resources of Asadabad Plain during spring and summer in 2012. Materials & Methods: In this analytical observational study, concentrations of heavy metals have been evaluated at 30 important groundwater sampling stations. For this purpose, collect samples in pre-cleaned, acid-soaked polyethylene bottles. Add 2 mL conc HNO3/L sample and mix well. Cap tightly and store in refrigerator until ready for analysis. Metal concentrations were determined using inductively coupled plasma- optical emission spectrometry (ICP-OES). Results: The results showed that mean concentrations of As, Zn, Pb, Cd and Cu in groundwater samples in spring season were 52.53±13.62, 15.51±23.45, 10.10±2.80, 4.48±1.80 and 8.63±10.87 μg l−1, respectively and in summer season were 57.60±16.90, 14.99±17.66, 9.28±2.46, 4.57±1.73 and 10.45±10.30 μg l−1, respectively. Therefore the mean values of indices in samples from spring and summer seasons were 25.61 and 27.28 respectively for HPI and were 9.29 and 8.88 respectively for HEI, and indicates low contamination levels. Comparing the mean concentrations of the evaluated metals with WHO permissible limits showed a significant difference (P<0.05). Thus, the mean concentrations of the metals were significantly lower than the permissible limits. Conclusions: Despite of the heavy metal pollution of the groundwater resources in Asadabad Plain is lower than WHO permissible limits, but the irregular and long-term usage of agricultural inputs, use of wastewater and sewage sludge in agriculture, over use of organic fertilizers and establishment of pollutant industries can threaten the groundwater resources of this region and cause adverse effect for consumers.
Authors and Affiliations
Soheil Sobhan Ardakani, Ahmad Reza Yari, Lobat Taghavi, Lima Tayebi
Keywords
Related Articles
- EP ID EP469966
- DOI -
- Views 132
- Downloads 0
Quality of Flour Types, in the Bakeries of Hamedan, Iran during 2015-2016
Background & Aims of the Study: Wheat flour makes the basic component of bread. Thus, evaluating its quality plays an important role in public health. This paper focused on the physicochemical and microbial analysis of a...
Evaluation of Environmental and Respirable Dust in Air of Tile Industry in South Khorasan
Background & Aims of the Study: Dust is one of the detrimental factors in workplace of tile industry. Exposure to excessive amount of dust can create various hazards to the workers. Therefore, the present study aimed t...
Efficiency of Powdery Activated carbon in Ammonia-Nitrogen Removal from Aqueous Environments (Response Surface Methodology)
Background & Aims of the Study: Nitrogenous compounds could directly create many problems for human's health and the environment. Thus, removal of nitrogenous compounds is necessary. Among the most important problems, de...
Identifying and Determining Dispersion Boundary Bio-aerosols of Bacterial and Fungal Pathogens from Municipal Waste Collection Containers
Background & Aims of the Study: Identifying and determining the dispersion boundary bio-aerosols of bacterial and fungal pathogens for locating containers of municipal waste in accurate management to prevent from health...
Evaluation of Surface Water Quality by NSFWQI Index and Pollution Risk Assessment, Using WRASTIC Index in 2015
Background & Aims of the Study: Water resources are useful or potentially useful. Uses of water are included agricultural, industrial, household, recreational and environmental activities. The majority of human uses requ...