Discussion on total As and metals use for assessing health risk via fish consumption in “Human exposure to trace metals and arsenic via consumption of fish from river Chenab, Pakistan and associated health risks. Chemosphere, 168, 1004–1012”

Chemosphere ◽  
2019 ◽  
Vol 233 ◽  
pp. 995-996
Author(s):  
Esteban Avigliano
2018 ◽  
Vol 188 (2) ◽  
pp. 485-493 ◽  
Author(s):  
Mohammad Hashemi ◽  
Abbas Sadeghi ◽  
Masoumeh Saghi ◽  
Majid Aminzare ◽  
Mojtaba Raeisi ◽  
...  

2020 ◽  
Vol 24 (8) ◽  
pp. 1409-1418
Author(s):  
B. Samuel ◽  
S. Sorsa ◽  
F. Daniel ◽  
G. Riise ◽  
G.M. Zinabu

Concentrations of heavy metals (Cr, Co, Fe, Ni, Cu, Zn, As, Se, Pb and Hg) in muscle tissues of two fish species (Clarias gariepinus and Oreochromis niloticus) in an Ethiopian rift-valley lake (Hawassa) and a neighboring stream (Boicha) were determined. Target hazard quotients (THQ), hazard index (HI) and target cancer risk (TCR) were used as indices to evaluate potential human health risks from fish consumption. Average concentrations of metals decreased in the order Zn>Fe>Se>Cu>Hg>As>Ni>Cr>Co>Pb and Zn>Fe>Se>Cu>As>Hg>Cr>Ni>Pb>Co in muscle tissues of C. gariepinus and O. niloticus, respectively. Mean concentrations of Hg (0.34+0.04 mg kg-1) in muscle tissues of C. gariepinus from Lake Hawassa, and As (0.18+0.05 mg kg-1) as well as Hg (0.46+0.03 mg kg-1) in muscle tissues of C. gariepinus from Boicha stream were above the safety limits set by WHO/FAO. Likewise, mean concentrations of As (0.31+0.03 mg kg-1) and Hg (0.19+0.05 mg kg-1) in muscle tissues of O. niloticus from Lake Hawassa and Cr (0.19+0.03 mg kg-1), As (0.33 +0.04 mg kg-1), and Hg (0.34+0.09 mg kg-1) in O. niloticus from Boicha stream were also above safety limits. From the results of human health risk assessments it was concluded that Cr, Cu, Hg and As pose potential health risks due to consumption of the two fish species from both water bodies. Moreover, effects of all heavy metals put together may affect human health as indicated by the high HI. Effluents from industries are assumed to be the main sources of the heavy metals. Therefore, regular monitoring of the water bodies and policy interventions with respect to waste disposal are recommended to protect the health of the ecosystem and the public. Keywords: Fish consumption, health risk, heavy metals, Lake Hawassa


Author(s):  
Saad Dahlawi ◽  
Saif Ullah ◽  
Abdulaziz. A. AlMulla ◽  
Mahmoud.M. Berekaa ◽  
Asif Naeem ◽  
...  

Among others, road traffic, industrial emissions, commercial activities, smoking and cooking are considered as major contributing factors for the increasing levels of pollutants in atmosphere. High levels of potentially toxic metals and microbes in atmosphere, especially in indoor air, may pose serious threat to human health. Therefore, concentration and associated health risks of potentially toxic trace metals (Cd, Cr, Cu, Fe, Mn, Pb, and Zn) and their risk to human health, and microbial load in indoor air was assessed using air condition (AC) filter dust samples collected from 5 locations representing residential, agricultural and industrial settings of Eastern Province, Kingdom of Saudi Arabia. The levels of trace metals varied considerably among sampling areas, with the highest levels of Cr and Cd recorded in the Industrial-area sites followed by the Agricultural and Urban-Residential sites. The highest levels of Pb and Fe were found in the Agricultural area sites followed by the Industrial and Urban-Residential area sites. The metals in dust sample, especially Cd, Cr and Pb, showed a considerable health risk through dermal pathway. Among the sites, the highest hazard quotient for these metals was found for Al-Qatif-Industrial areas sites and among the metals it was the highest for Cd. The cancer risk from the metals contained in AC filter dust was negligible. Samples collected from Agricultural and Industrial area sites were substantially contaminated with bacteria and fungi, respectively. Bacterial contaminants were mostly Gram Negative, with considerable antibiotic resistance and haemolytic activity. Thus, indoor air quality as assessed by AC filter dust depicted that a considerable health risk could be posed by the trace heavy metals and microorganisms for a long-term exposure. Furthermore, this study demonstrated that AC filters dust could be a unique and reliable test sample for the assessment of indoor environment.


Author(s):  
Xiaoping Li ◽  
Bin Liu ◽  
Yu Zhang ◽  
Jiwen Wang ◽  
Hameed Ullah ◽  
...  

A total of 116 dust samples in downtown within the city wall were collected, and the spatial occurrence, source and health risk status of 19 trace metal/metalloids bound in street dusts (SDs) were systematically investigated. Geochemical maps, associations, risk models and indices were calculated to define levels of distribution, possible natural or anthropogenic sources, ecological and human health risks. It was found that the wide variations of these 19 trace metals would be observed in spatial maps, which indicated strongly anthropogenic activities inputs. Compared to the calculations of the potential ecological risk index of toxic trace metals, Pb (Eri = 20.32) ranked at the level of considerable ecological risk. The non-carcinogenic and carcinogenic risk from most trace metals exposed to children and adults were no significant health risks, except for the non-carcinogenic risk of Cr and As to children, and the carcinogenic risk of Cr to adults. The unacceptable risk locations were observed at traffic conjunctions, which should be given attention. The source apportionment results indicated that the trace metals/metalloids Co, Ga, Nb, As, Ni, and Y, coupled with main elements Al, K, Mg, Ca and Si, would possibly originate from “Soil Re-suspension”, whereas Fe, Cu, Rb, La, Ba, Mn, Ti, Ce and Zr were possibly derived from “Brake Wear”. As regards the Na, no valid assumption was formulated about the presence of this element in brake wear, while Cr, Sr, Zn were possibly associated with “Tire Wear”. Comparatively, V would be suggested as a representative source of fuel consumption, and Pb could possibly belong to “Traffic Pigment”. It was noted that the barbican city, surrounded by the Xi’an Ancient City Wall at 12 m high, would trap the trace metal emissions, and consequently increase the health risk for local residents.


Chemosphere ◽  
2017 ◽  
Vol 168 ◽  
pp. 1004-1012 ◽  
Author(s):  
Ambreen Alamdar ◽  
Syed Ali Musstjab Akber Shah Eqani ◽  
Nida Hanif ◽  
Syeda Maria Ali ◽  
Mauro Fasola ◽  
...  

2019 ◽  
Vol 196 (2) ◽  
pp. 419-429 ◽  
Author(s):  
Francis Gbogbo ◽  
Jacinta E. Rainhill ◽  
Samuel S. Koranteng ◽  
Erasmus H. Owusu ◽  
Winfred-Peck Dorleku

2021 ◽  
Author(s):  
Jingshu Wang ◽  
Jinhui Jeanne Huang ◽  
Catherine Mulligan

Abstract Human exposure to metals on road dust might have potential health risks through touching, ingesting, and inhaling. There were limited studies to link seasonal emission sources to health risks from metals on road dust. In this study, metals on road dust from different functional areas were seasonally monitored. The pollutant sources in study city varied slightly with the seasons, but the major pollutant source in the particular study site were significantly affected by the seasons. By combining the source apportionment model (PMF), line sources model and health risk models (HI: Hazard index and ILCR: Incremental Lifetime Carcinogenic risk), industrial and construction activity was identified as the crucial source of both the pollutants on road dust (29% - 47%), and the HI for adults (27% - 45%) and children (41% - 50%) in different seasons. The traffic non-exhaust emission dominated in the carcinogenic risks for children in spring (45%) and summer (36%). Factors such as seasons, particle size, metal bioavailability, human exposure time, and exposure area were all taken into consideration to avoid overestimating or underestimating health risks. The carcinogenic risks for children (1.6 E-06) and adults (2.8 E-06) exposed to Cr both exceed the minimum threshold (10-6). Measured metals mainly posed hazard to human health through ingestion route. Pb and Mn, Fe and Mn were the main harmful elements that induced non-carcinogenic risks for adults and children, respectively. Effectively identifying the source-specific health risks in different seasons will help in the formulation of adaptive strategies to diminish the potential risks.


2017 ◽  
Vol 42 (1) ◽  
pp. 1
Author(s):  
Zainal Arifin ◽  
Dede Falahudin

Consumption of both marine and freshwater fishes is considered as a healthy way to obtain diet, but theingestion of contaminated fishes remains a concern. Our study is conducted to asses cadmium (Cd) and lead (Pb)contents in various fishes consumed by coastal communities in six districts of West Kalimantan (Indonesia) andtheir health risks to the communities. Specifically, the objectives of this study are to determine the average weeklyintakes (AWIs) of cadmium and lead based on dietary intake of fishes, then estimate health risk associated with fishconsumption using the risk quotients (RQs) method. We also use food frequency questionnaires (FFQ) filled by696 respondents to assess fish consumption habit of the communities in West Kalimantan who consumed up to 30fish species in 2012 and 2013. Our results show that their average weekly fish consumption is 135.7 ± 66.3 g/week,which contributes to AWI values of 0.38 ± 0.55 ?g/kg body weight (bw) per week for Cd and 0.87 ± 0.65 ?g/kg bwper week for Pb. The RQ values indicate a low risk of Pb coming from fish consumption, but the RQ value for Cd ishigh for the children age group. In conclusion, fish consumption in the six districts of coastal communities in WestKalimantan generally does not pose any health risk from Pb. Conversely, Cd intake from fish consumption has apotential risk for children. As such, regular monitoring and additional studies are needed on potential contributionof Cd intake from other food sources.


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