Water quality evaluation, health risk assessment and multivariate apportionment of selected elements from Simly Lake, Pakistan

2012 ◽  
Vol 12 (5) ◽  
pp. 588-594 ◽  
Author(s):  
Javed Iqbal ◽  
Munir H. Shah
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Water Samples ◽  
Hazard Quotient ◽  
Local Population ◽  
Principal Component ◽  
International Standards ◽  
Total Alkalinity ◽  
Potential Health

This study was carried out to investigate the distribution of selected elements (Ca, Mg, Na, K, Fe, Zn, Cu, Sr, Li, Mn, Co, Cr, Cd and Pb) and physicochemical parameters (pH, dissolved oxygen, electrical conductivity and total alkalinity) in the freshwater of Simly Lake, Pakistan. Multivariate statistical analysis was used to study the apportionment of elements in the water samples, while their suitability for drinking and agricultural purposes were also assessed. Principal component analysis (PCA) and cluster analysis (CA) revealed considerable anthropogenic contributions of the elements in water samples. Average levels of Cd, Co, Cr and Pb in the waters were significantly higher than national and international standards. In order to ascertain the potential health risk of heavy metal contents to the local population, non-carcinogenic health risk assessment was evaluated in terms of exposure assessment (Exping/derm) and hazard quotient (HQing/derm) which demonstrated that the measured levels of Cd, Co, Cr and Pb were higher than the safety limit, thus indicating adverse health effects associated with the consumption of the lake water.

scholarly journals Environmental Monitoring and Potential Health Risk Assessment from Pymetrozine Exposure among Communities in Typical Rice–Growing Areas of China

2021 ◽  
Author(s):  
Muyesaier Tudi ◽  
Huada Daniel RUAN ◽  
Shuangmei Tong ◽  
li wang ◽  
Albert Atabila ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Cancer Risk ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Hazard Quotient ◽  
Human Health Risk ◽  
Potential Health ◽  
Dermal Contact ◽  
Paddy Water ◽  
Contact Exposure

Abstract Pymetrozine is one of the most common insecticides used in China. This study was conducted to analyse Pymetrozine’s potential exposures through various environmental routes beyond the treatment area. The aim was to estimate the potential health risk for communities due to non-dietary exposure to Pymetrozine in soil and paddy water. Data on registration of pesticides in China, government reports, questionnaires, interviews, literature reviews as well as toxicological health investigations were evaluated to determine the hazard and dose-response characteristics of Pymetrozine. These were based on the US EPA exposure and human health risk assessment methods using exposure from soil and paddy water samples collected between 10 to 20 meters around the resident’s location.The potential exposures from dermal contact through soil and paddy water were estimated. The potential cancer risk from the following routes was evaluated: the ingestion through soil; dermal contact exposure through soil; dermal contact exposure through paddy water; and the potential total cancer risk for residents was less than 1*10− 6. These were within the acceptable risk levels. The potential hazard quotient (HQ) from acute and lifetime exposure by dermal contact through paddy water and soil; acute and lifetime exposure by soil ingestion for residents were less than 1, indicating an acceptable risk level, thus both potential cancer risk and hazard quotient (HQ) were relatively low. Potential human health risk assessment of Pymetrozine in soil and paddy water suggested that negligible cancer risk and non-cancer risk based on ingestion and dermal contact are the main potential routes of exposure to residents.

scholarly journals Bioaccumulation of Antimony and Arsenic in Vegetables and Health Risk Assessment in the Superlarge Antimony-Mining Area, China

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Defang Zeng ◽  
Saijun Zhou ◽  
Bozhi Ren ◽  
Tengshu Chen
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Health Risks ◽  
Hazard Quotient ◽  
Daily Intake ◽  
Mining Area ◽  
Coriandrum Sativum ◽  
Potential Health ◽  
Safe Limit

Heavy metal pollution in soils caused by mining and smelting has attracted worldwide attention for its potential health risks to residents. This paper studies the concentrations and accumulations of Sb and As in both soils and vegetables and the human health risks of Sb and As in vegetables from Xikuangshan (XKS) Sb mine, Hunan, China. Results showed that the soils were severely polluted by Sb and As; Sb and As have significant positive correlation. Sb and As concentrations in vegetables were quite different:Coriandrum sativumL. was the highest in Sb,Allium fistulosumL. was the highest in As, andBrassica pekinensisL. was the lowest in both Sb and As;Daucus carotaL. andCoriandrum sativumL. showed advantage in accumulating Sb and As;Coriandrum sativumL. had higher capacity of redistributing Sb and As within the plant. Health risk assessment results showed that the hazard quotient (HQ) values of Sb and As in vegetables were in the ranges of 1.61–3.33 and 0.09–0.39, respectively; the chronic daily intake (CDI) and hazard quotient (HQ) values of Sb were over the safe limit recommended by FAO and WHO, indicating that long-term consumption of vegetables from the surrounding soils of XKS mine may bring health risks to residents.

scholarly journals Potential health risk assessment related to arsenic pollution and hydrogeochemistry of groundwaters in Akşehir and surroundings (Konya/Turkey)

2020 ◽  
Author(s):  
Simge Varol
Keyword(s):  
Risk Assessment ◽  
Drinking Water ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Water Samples ◽  
Arsenic Concentration ◽  
Agricultural Activities ◽  
Potential Health ◽  
Limit Values ◽  
Arsenic In Groundwater

Abstract Groundwater is an important water resource used for drinking, domestic and agricultural activities in Akşehir and surroundings. However, intensive agricultural and human activities in the region adversely affect groundwater quality. In this study, 31 water samples were collected from wells. According to the Piper diagram, groundwater in the study area was in the Ca–Mg–HCO3 and Ca–HCO3 water facies. As a result, it is not appropriate to use groundwater as drinking water in the study area in terms of trace elements and pollutant analysis results of water samples compared to limit values determined by WHO and ITHASY drinking water guidelines. The arsenic concentration in groundwater was studied in detail. The origin and concentration of arsenic in groundwater is associated with agricultural activities and pesticides in the region. Accordingly, a health risk assessment was carried out for the use of groundwater in the study area as drinking water. The results for all samples analyzed indicate that the groundwater concerned was not suitable for drinking purposes because of arsenic concentrations which exceeded maximum acceptable levels.

scholarly journals Evaluation of Chemical Parameters of Urban Drinking Water Quality along with Health Risk Assessment: A Case Study of Ardabil Province, Iran

2021 ◽  
Vol 18 (10) ◽  
pp. 5179
Author(s):  
Reza Aghlmand ◽  
Saeed Rasi Nezami ◽  
Ali Abbasi
Keyword(s):  
Water Quality ◽  
Risk Assessment ◽  
Drinking Water ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Water Distribution ◽  
Hazard Quotient ◽  
Hazard Index ◽  
World Health ◽  
Study Region

In recent years, in addition to water resources’ quantity, their quality has also received much attention. In this study, the quality of the urban water distribution network in northwestern Iran was evaluated using the water quality index (WQI) method. Then, some important trace elements were investigated, and finally, the health risk assessment was evaluated for both carcinogenic elements (Ni, Cd, Cr, Pb, and As) and non-carcinogenic elements (Ca, Mg, Na, K, F, NO3, and Cu) using carcinogenic risk (CR) and hazard quotient (HQ), respectively. In the present study, the WQI was calculated based on both World Health Organization (WHO) and Iranian drinking water standards. Comparing the results of these standards revealed that the WQI based on the Iranian standard was slightly higher. Regarding the calculated WQI for the study region, the status of water quality for drinking consumption is in the good water quality class (25 < WQI < 50). It was observed that Cu and Cd have the highest and lowest concentrations in all sampling points, respectively. Hazard Index (HI) results showed that the non-carcinogenic substances studied had a low risk for both adults and children (<1.0). However, the CR results showed that Ni, Cd, and As were above the desired level for both children and adults. The results of this study can be applied for efficient water management and human health protection programs in the study area.

scholarly journals Potential health risk assessment of toxic metals contamination in clay eaten as pica (geophagia) among pregnant women of Ho in the Volta Region of Ghana.

2020 ◽  
Author(s):  
Nii Korley Kortei ◽  
Alice Koryo-Dabrah ◽  
Papa Toah Akonor ◽  
Nana Yaw Barima Manaphraim ◽  
Matilda Ayim-Akonor ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Pregnant Women ◽  
Hazard Quotient ◽  
Health Problems ◽  
Target Hazard Quotient ◽  
Potential Health ◽  
Potential Health Risk ◽  
Adverse Health ◽  
Volta Region

Abstract Introduction: Geophagia although pleasurable and somewhat a necessity among pregnant women, also comes along with its own attendant problems such as exposure to potentially hazardous substances like bacteria, fungi, helminthes and ova, radioactive materials, and toxic elemental minerals in the soil depending on the geographical location.Methodology: This study evaluated the potential health risk involved during the exposure of pregnant women to toxic elemental minerals via the consumption of clay as pica (geophagia). Elemental mineral analysis was carried out using Buck Scientific 210VGP Flame Atomic Absorption Spectrophotometer (Buck Scientific, Inc. East Norwalk, USA). Risk assessment methods were also used to ascertain the various risks factors and the overall risk level.Results: Concentrations of the macro elements investigated were 1.38 ± 1.5, 2.40± 1.5, 7.74± 1.5, 4.01± 1.0, 13.24± 2.2 and 13.76± 2.1 mg/Kg for iron (Fe), copper (Cu), zinc (Zn), potassium (K), magnesium (Mg) and sodium (Na) respectively. While that for the micro elements were 1.63± 0.03 µg/Kg, 4.72±0.8, 0.53±0.02 and 1.85±0.3 mg/kg respectively for arsenic (As), manganese (Mn), lead (Pb) and nickel (Ni). Estimated Daily Intake (EDI), Hazard Quotient (HQ), Target Hazard Quotient (THQ) and Total Target Hazard Quotient (TTHQ) values ranged 0.611- 5.44 (mg/kg Bw/day), 6.26x10-4 – 106.5, 0.067-10.34 and 15 respectively.Conclusion: There is the likelihood of posing adverse health problems when clay samples obtained from Anfoega which is sited in the Volta region of Ghana is consumed due to the fact that the HQ’s of these elemental minerals were >1 which points to high content of Manganese (Mn) and Nickel (Ni). It is also likely to cause adverse health problems in an individual’s life time since THQ for Arsenic, Lead and Nickel were above 1. Ultimately, the cumulative effect of these toxicants were exceedingly great (≤ 15) which implied a high level of unsafety associated with this clay. Per the results from this study, it is not safe for pregnant women to consume clay as pica since these toxic elements may cause detrimental effects on the foetus of the unborn child.

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