Toxicological evaluation of multi-class pesticide residues in vegetables and associated human health risk study for adults and children

2016 ◽  
Vol 22 (7) ◽  
pp. 1480-1505 ◽  
Author(s):  
Bozena Lozowicka ◽  
Ewa Rutkowska ◽  
Magdalena Jankowska ◽  
Izabela Hrynko ◽  
Piotr Kaczynski
2015 ◽  
Vol 97 (1-2) ◽  
pp. 178-187 ◽  
Author(s):  
Ingrid Alejandra Granados-Galván ◽  
Durga Guadalupe Rodríguez-Meza ◽  
Antonio Luna-González ◽  
Héctor Abelardo González-Ocampo

2020 ◽  
Author(s):  
Zeshan Shah ◽  
Zubair Nengroo

Abstract Study was carried out to determine the concentration and bioaccumulation of pesticide residues in edible fish from river Ganga, India, to assess human health risk via consumption of fish. Two commonly edible fish species bagrid catfish and common carp were collected. The n-hexane extract of the muscle tissues were characterized by gas chromatography coupled to mass spectrometry and quantified by electron capture detector for pesticide residues. Bioaccumulation factors (BAFs) in common carp of pesticides were found to be higher than those in bagrid fish. Daily exposures of pesticides for consumers via fish consumption were determined by calculating and comparing estimated daily intake (EDI) with ADI values. The EDI results in our study were insignificantly high from ADI values. Non-carcinogenic and carcinogenic risks were evaluated by Target hazard quotient (THQ) and risk ratio (R), respectively. Hazard quotients (THQ) were found to be lower than the set 1.0, inferring non-carcinogenic risk by consumption of fish from the river. Regard to contaminants carcinogenic affects the total risk ratio (R) value of pesticides were found lower than threshold of tolerable risk except of heptachlor indicating carcinogenic risk via consumption of fish. The results demonstrate that due to increased pollution in the ecosystem required more attention.


2020 ◽  
Vol 16 (1) ◽  
pp. 157-169
Author(s):  
Hammad Ahmed Shah ◽  
Muhammad Sheraz ◽  
Afed Ullah Khan ◽  
Fayaz Ahmad Khan ◽  
Liaqat Ali Shah ◽  
...  

AbstractThis study reports pollution source apportionment of surface waters and human health risk assessment based on 18 physicochemical and traces elements from 24 water quality monitoring sites for surface and groundwater around the two trans-boundary rivers of Pakistan: The Ravi and Sutlej. The principal component analysis identified 6 principal components (76.98 % cumulative variance) which are mainly caused by untreated industrial effluents, intense agricultural activities, and irrigation tailwater discharges. For all dissolved trace elements in surface waters, health hazard indices (HI) and hazard quotients (HQ) through ingestion and dermal contact are < 1 except As and Cr through ingestion only (for both adults and children). For adults and children, the HQingestion and HI values for As, Mn, Cu (for children only) and As, Fe, Mn (for children only) are > 1, indicating that As, Mn, Fe, and Cu are the most important pollutants causing chronic risks among the selected trace elements in both shallow and deep groundwater respectively. HQingestion, HQdermal, and HI values are higher for children than that of adults which shows the high susceptibility of children to these dissolved trace elements. The carcinogenic indices for the entire surface water elements exceed 10−6 through dermal and ingestion pathways suggesting carcinogenic health risk to the surrounding community. Hence, to protect human health, wastewater treatment plants and best management practices should be practiced to control point source and nonpoint source pollution respectively in the understudied area.


2016 ◽  
Vol 15 (1) ◽  
pp. 112-132 ◽  
Author(s):  
Şehnaz Şener ◽  
Erhan Şener ◽  
Ayşen Davraz

Eğirdir Lake basin was selected as the study area because the lake is the second largest freshwater lake in Turkey and groundwater in the basin is used as drinking water. In the present study, 29 groundwater samples were collected and analyzed for physico-chemical parameters to determine the hydrochemical characteristics, groundwater quality, and human health risk in the study area. The dominant ions are Ca2+, Mg2+, HCO32−, and SO42. According to Gibbs plot, the predominant samples fall in the rock–water interaction field. A groundwater quality index (WQI) reveals that the majority of the samples falls under good to excellent category of water, suggesting that the groundwater is suitable for drinking and other domestic uses. The Ca-Mg-HCO3, Ca-HCO3, Ca-SO4-HCO3, and Ca-Mg-HCO3-SO4 water types are the dominant water types depending on the water–rock interaction in the investigation area. Risk of metals to human health was then evaluated using hazard quotients (HQ) by ingestion and dermal pathways for adults and children. It was indicated that As with HQ ingestion &gt;1 was the most important pollutant leading to non-carcinogenic concerns. It can be concluded that the highest contributors to chronic risks were As and Cr for both adults and children.


2021 ◽  
Author(s):  
Paraskevas Parlakidis ◽  
Soledad Maria Rodriguez ◽  
Christos Alexoudis ◽  
Greivin Perez-Rojas ◽  
Marta Perez-Villanueva ◽  
...  

Abstract The presence of pesticide residues in groundwater, many years after their phase out in European Union verifies that the persistence in aquifer is much higher than in other environmental compartments. Factors such as limited degradation, and adsorption in phreatic horizon have resulted in frequent detection of pesticide residues and their metabolites in the saturated zone. Currently used and banned pesticides were monitored in Northern Greece aquifers and risk to human health was assessed. The target compounds were the herbicides metolachlor, terbuthylazine, atrazine and its metabolites Deisopropylatrazine (DIA), Deethylatrazine (DEA) and Hydroxyatrazine (HA). The area’s aquifer has been extensively studied over the past 20 years. Eleven sampling sites were selected in order to have representatives of different type of wells. Namely, five drinking water, two irrigation wells and four experimental boreholes located close to Greek/Turkish/Bulgarian borders were monitored and fifty-four samples were analyzed. Pesticides were extracted by solid-phase extraction and analyzed by liquid chromatography. Metolachlor was detected in 100% of water samples followed by ATR (96.4%), DEA and HA (88.6%), DIA (78.2%) and TER (67.5%). Atrazine, DIA, DEA, HA, MET and TER mean concentrations detected were 0.18, 0.29, 0.14, 0.09, 0.16 and 0.15 μg/L, respectively. Obtained results were compared with historical data from our previous monitoring studies (1999-2003 and 2010-2012) and temporal trends were assessed. Preferential flow was the major factor facilitating pesticide leaching within the month of herbicide application. Moreover, apparent age of groundwater and the reduced pesticide dissipation rates on aquifers resulted of long-term detection of legacy pesticides. Although atrazine had been banned more than 15 years ago, it was detected frequently during our monitoring campaign and their concentrations in some cases were over the maximum permissible limit. Furthermore, human health risk assessment of pesticides was calculated for two different age groups though drinking water consumption. The presence of atrazine residues causes concerns related with chronic toxicity.


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