scholarly journals Human Health Risk Assessment and Histopathological Alterations in Puntius sophore of Damsal Nala, Sukinda Chromite Valley, Odisha, India

Author(s):  
Mondal Niladri Sekhar ◽  
Mandal Arghya ◽  
Kole Debraj ◽  
Patra Atanu ◽  
Das Subhas ◽  
...  

The aim of the present study was to assess the concentration of potentially toxic metals (PTMs) like As, Cd, Cr, Cu, Fe and Pb in the Damsal Nala of Sukinda Chromite Valley, Jajpur of Odisha (India) and its subsequent histopathological lesions in the fish Puntius sophore. Energy Dispersive X-Ray Fluorescence (EDXRF) and Flame Atomic Absorption Spectroscopy (FAAS) methods were used to evaluate the concentrations of PTMs in the muscles of fish, Puntius sophore collected from different zones namely upstream discharge zone (UDZ) and upstream zone (UZ) of the Damsal Nala and control water bodies (CW). In the UDZ of Nala, the concentration of metals viz., Cd, Pb and Fe were 2 to 7 times, and Cr was 77 times higher than the maximum permissible limits recommended by WHO and FAO in the fish muscles. The values of Target Hazard Quotients (THQ) of all these 6 metals were <1 in CW and UZ, but in UDZ the THQ values of Cr and Fe were >1. Hazard Index (HI) for UDZ was 3.47, indicated the alarming concentration of metal which can pose serious risk to human health. Histopathological observations in liver and kidney of Puntius sophore collected from UDZ demonstrated the serious lesions, but mild damage in fish collected from UZ. These histological alterations and the health risk indices disclosed the effects of effluents of chromite mining and the impact on the ecological balance which may result into health hazards to the local human population who are maintaining their livelihood by consuming these fish as protein source.

Author(s):  
Ebimobowei Assayomo ◽  
Solomon Brepi Patrick ◽  
Ruth Angobrakumor Ajimmy ◽  
Eyidenghabofa David Odikeme ◽  
Ahiakwo Bright Ogbo

Aims: Man-made activities such as excessive oil exploration, automobile emissions, gas flaring and agricultural activities tend to elevate the concentrations of heavy metals in the surrounding. Heavy metals have the tendency to accumulate in plant roots, which may result to heavy metal contamination. Objectives: This study aimed at evaluating the concentration of heavy metals such as Lead (Pb), Cadmium (Cd), Nickel and Zinc (Zn) in Pawpaw fruits, seeds, leaf and Scent leaf from Amosoma community in Bayelsa State, Nigeria. The concentrations of these metals were used to assess the human health risk melted to the consumers of the vegetables and fruits. Materials and Methods: Sixteen different vegetables and fruit samples comprising of Pawpaw and Scent leaves were digested and analyzed for heavy metals using Flame Atomic Absorption Spectrophotometer (F-AAS). Results: The result of the present study reviewed that Pb, Cd, Ni, and Zn ranged from 1.090 ± 0.01 - 5.990 ± 0.06; 0.213 ± 0.03 - 1.317 ± 0.02; 2.810 ± 0.04 - 4.767 ± 0.09; and 0.793 ± 0.01 -5.303 ± 0.02 mg/kg, respectively. The concentrations of Pb, Cd, and Ni in some of the analyzed pawpaw and scent leaf samples exceeded the permissible limit as recommended by WHO/FAO, EC/CODEX and NAFDAC respectively. The concentrations of Zn were below the permissible limit as recommended by WHO/FAO. The Estimated Daily Intake (EDI) of Pb and Cd exceeded the oral reference dose (RfDo) however; Ni and Zn fall within the oral RfDo. The Target Hazard Quotient (THQ) and Hazard Index (HI) values of Pb, Cd, Ni and Zn were less than 1. The Carcinogenic Risk (CR) of Cd and Ni exceeded the range of permissible predicted lifetime risks for carcinogens as recommended by US EPA, meanwhile, the carcinogenic risk of Pb was within the permissible predicted lifetime risks as recommended by USEPA. Conclusion: The result from the present study indicate that the fruits and leaves from pawpaw and scent leaf may be contaminated with Pb, Cd, and Ni and the exposed population may be at risk of developing cancer due to carcinogenic ingestion of Cd and Ni over time.


2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Koh Han Dee ◽  
Faizuan Abdullah ◽  
Siti Nor Aini Md Nasir ◽  
Suganthi Appalasamy ◽  
Rozidaini Mohd Ghazi ◽  
...  

Corbicula fluminea serves as traditional food to the local people in Kelantan, Malaysia. Concerns regarding river contamination, smoking method, and associated adverse effects on public health had been increasing. Hence, this study aims to measure the level of heavy metals (Cd, Cu, Mn, Pb, and Zn) and assess human health risk in C. fluminea consumption at Kelantan. Heavy-metal analysis was done using flame atomic absorption spectrophotometry, while human health risk was assessed using provisional tolerable weekly intake (PTWI), target hazard quotient (THQ), and hazard index (HI). The estimated weekly intake (EWI) for all metals was found within PTWI, while THQ for Cd, Cu, Mn, Pb, and Zn was 0.12, 0.06, 0.04, 0.41, and 0.03, respectively. The HI was calculated at 0.61 which is less than 1, considered as the safe consumption level. Therefore, C. fluminea consumption in this study was found safe from the health risk of noncarcinogenic effect over a lifetime.


2020 ◽  
Vol 19 (05) ◽  
pp. 46-54
Author(s):  
Thiep V. Vo

Siganus fuscescens Houttuyn, 1782 is one of the common fish species in Quang Binh province and consumers are favored by its high nutritional value. However, the consumption of Siganus fuscescens may pose potential risks to human health since they can accumulate significant amounts of heavy metals in their tissues. From July to October 2019, a total of 50 individuals of Siganus fuscescens were randomly collected through fishermen at local markets in Quang Binh province. Liver, gills, and muscles were dissected and analyzed for cadmium, lead, copper, zinc, and iron contents by the flame atomic absorption spectrometer, and the cold vapor atomic absorption spectrometer for mercury content. The metal content in all tested samples was lower than the threshold limit value by the Vietnamese Ministry of Health (MoH). The risk to human health by the intake of metal contaminated Siganus fuscescens was evaluated by estimated daily intake (EDI), target hazard quotient (THQ), and hazard index (HI). All the EDI values were below the provisional tolerable daily intake (PTDI) set by the MoH, and all of THQ and HI values for male and female consumers did not exceed 1, indicating that there was no potential human health risk in consuming Siganus fuscescens from coastal areas of Quang Binh province.


2016 ◽  
Vol 31 (4) ◽  
Author(s):  
Sock Yin Tan ◽  
Sarva Mangala Praveena ◽  
Emilia Zainal Abidin ◽  
Manraj Singh Cheema

AbstractIndoor dust acts as a media for heavy metal deposition. Past studies have shown that heavy metal concentration in indoor dust is affected by local human activities and atmospheric transport can have harmful effects on human health. Additionally, children are more sensitive to heavy metals due to their hand-to-mouth behaviour and rapid body development. However, limited information on health risks were found in past dust studies as these studies aimed to identify heavy metal concentrations and sources of indoor dust. The objective of this review is to discuss heavy metal concentration and sources influencing its concentration in indoor dust. Accordingly, high lead (Pb) concentration (639.10 μg/g) has been reported in heavy traffic areas. In addition, this review paper aims to estimate the health risk to children from heavy metals in indoor dust via multiple exposure pathways using the health-risk assessment (HRA). Urban areas and industrial sites have revealed high heavy metal concentration in comparison to rural areas. Hazard index (HI) values found in arsenic (As), chromium (Cr) and Pb were 21.30, 1.10 and 2.40, respectively, indicate that non-carcinogenic elements are found in children. Furthermore, most of the past studies have found that carcinogenic risks for As, cadmium (Cd), Cr and Pb were below the acceptable total lifetime cancer risk (TLCR) range (1×10


2014 ◽  
Vol 1010-1012 ◽  
pp. 237-243
Author(s):  
Sheng Lin Tan ◽  
Shuai Guan ◽  
Zu Fa Liu

This study was performed to develop a fuzzy model for human health risk assessment of organic contamination of groundwater to quantify the uncertainties inherent in risk assessment processes. The fuzzy model was constructed based on the fuzzy set theory and traditional risk assessment approach. Triangular fuzzy number was used to describe the variability of parameters associated with traditional risk assessment and α-cut sets was taken to transform fuzzy numbers to intervals that can be fairly taken into arithmetic operation of lifetime cancer risk (ELCR) and hazard index (HI) which respectively denotes the carcinogenic and non-carcinogenic risks. Considering the exposure routes of drinking and showering, the developed fuzzy model yields risks at different memberships as well as the expectation of risks. The model was applied to a site in China with organics-contaminated groundwater. It was found that tetrachloroethylene (PCE) posed the most risks, followed by trichloroethylene (TCE), while carbon tetrachloride (CT) posed the smallest. Results also showed drinking, compared with showering, is the major exposure route and boiling is important for reducing health risks of groundwater.


Food safety is of great concern in the Niger Delta region of Nigeria because of its pollution levels. Shell fish is one of the major diets of the people of Rivers State and they affect a large market and customer target in the region. This study was aimed at assessing the human health risk from consuming oysters bought from different markets in Rivers State namely; Creek Road market Borokiri, Mile 3 Market and Choba Market while Oysters harvested from ARAC (Buguma) were used as control. Lead (Pb), Cadmium (Cd), Chromium (Cr), Cobalt (Co) and Nickel (Ni) were analysed in all samples using the Atomic absorption spectrometer. Cobalt had the highest concentration in all the samples from the markets except Mile 3 market, it ranged from 0.011-0.014mg/kg, while Lead ranged from 0.007-0.012 mg/kg, Chromium ranged from 0.008-0.010 mg/kg, Nickel ranged from 0.008-0.021 mg/kg and Cadmium ranged from 0.001-0.007mg/kg .The Estimated Daily Intake (EDI) of these metals were calculated, Target Human Quotient (THQ) and Hazard Index (HI) derived. EDI values were within tolerable limit. THQ and HI calculated indicated likely risk from oyster consumption since the values obtained were above the threshold of one (1) for lead, Cobalt and Cadmium, long term consumption may lead to health risk.


2021 ◽  
Vol 72 (4) ◽  
pp. 268-279
Author(s):  
Maida Šljivić Husejnović ◽  
Saša Janković ◽  
Dragica Nikolić ◽  
Biljana Antonijević

Abstract The aim of this study was to assess the risk of human exposure to lead (Pb), cadmium (Cd), and mercury (Hg) through agricultural soil by considering both uncertainty and variability in key exposure parameters. For this reason we collected soil samples from 29 locations in the Tuzla Canton (Bosnia and Herzegovina) and measured their metal levels with inductively coupled plasma atomic emission or absorption spectrometry (ICP-AES and ICP-AAS, respectively). The levels of Pb ranged from 13.33 to 1692.33 mg/kg, of Cd from 0.05 to 3.67 mg/kg, and of Hg from 0.02 to 2.73 mg/kg. To estimate cancer and non-cancer risks we used deterministic and semi-probabilistic methods. Lead was found to involve higher health risk than the other two heavy metals. Its hazard index (HI) decreased between population groups (children>women>men) and exposure routes (ingestion>skin contact>inhalation). Our Monte Carlo simulations indicated that Pb HIs for both adult populations had a 0.6 % probability to exceed the threshold value of 1, while in children this probability was 14.2 %. Cd and Hg showed no probability to exceed the threshold in any scenario. Our simulation results raise concern about possible adverse health effects of heavy metals from soil, especially in children. It is very important to continue monitoring environmental pollution and assess human health risk, not only with respect to soil, but also with other important environmental compartments, such as air and water.


2021 ◽  
Author(s):  
Ajaykumar Kadam ◽  
Vasant Wagh ◽  
James Jacobs ◽  
Sanjay Patil ◽  
Namdev Pawar ◽  
...  

Abstract Groundwater occurrence in hard rock basaltic terrains is restricted to weathered and fractured zones and pockets wherein slow movement of groundwater, prolonged rock-water interactions and higher residence time alter the natural chemistry of groundwater raising water quality issues. The qualitative geochemical analysis, contamination levels and human health risk assessment (HHRA) of groundwater is an integral step in groundwater management in the Deccan Plateau basalt flow region of India. Representative groundwater samples (68) collected from the Shivganga River basin area during pre-monsoon (PRM) and post-monsoon (POM) seasons in 2015 were analyzed for major cations and anions. According to World Health Organization (WHO) EC, total dissolved solids, hardness, bicarbonate, calcium and magnesium surpassed the desirable limit. Boron and fluoride content exceeded the prescribed desirable limit of the WHO. The pollution and drinking suitability were assessed by computing pollution index of groundwater (PIG), groundwater quality index (GWQI), and HHRA particularly for boron and fluoride toxicity. PIG values inferred that about 6% of groundwater has moderate, 24% has low, and 70% has insignificant pollution in the PRM season; while, only 1 sample (3 %) showed high pollution, 6% showed low, and 91% showed insignificant pollution in the POM season. GWQI results indicate that 27% and 15% samples are within the poor category, and only 15% and 18% of the samples fall within the excellent water quality category in the PRM and the POM season, respectively. Total hazard index (THI) revealed that 88% of children, 59% of adults, and about 38% of infants are exposed to non-carcinogenic risk, as THI values (> 1) were noted for the PRM season; while, 62% of children, 47% of adults and 24% of infants, are vulnerable to non-carcinogenic health hazard during the POM period.


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