scholarly journals Assessment of heavy metal concentrations in periwinkle (Tympanotonus fuscatus) samples from Uta-ewa creek, Imo river estuary, South eastern Nigeria

2020 ◽  
Vol 9 (2) ◽  
pp. 32-35
Author(s):  
IdopiseAbasi E Asuquo
Keyword(s):  
Heavy Metal ◽  
Environmental Protection Agency ◽  
River Estuary ◽  
World Health ◽  
Protection Agency ◽  
Southeastern Nigeria ◽  
Heavy Metal Concentrations ◽  
Aquatic Resource ◽  
Accumulation Of Metals ◽  
Health Organization

Heavy metal (HM) contents in periwinkle from Uta Ewa creek, Imo river estuary, Southeastern Nigeria were investigated. Samples were collected from the offshore landing fisher folks during July-November 2018. HM was determined using atomic absorption spectrophotometer-varian model spectral AA 220. The concentration values of cadmium were ranged from 0.59 to 0.935mg/kg (mean±SD=0.68±0.13mg/kg), chromium from 0.31 to 0.82mg/kg (mean±SD=0.60±0.26mg/kg), copper from 2.02 to 2.37mg/kg (mean±SD=2.27±0.14mg/kg), iron from 1.83 to 3.03mg/kg (mean=2.36±0.51mg/kg), Pb from 0.02 to 0.22mg/kg (mean±SD=0.13±0.94mg/kg), Manganese from 1.03 to 0.22mg/kg (mean±SD=0.13±0.073mg/kg) and zinc from 1.08 to 2.29 mg/kg (mean±SD=1.70±0.50mg/kg). The results showed that concentrations of Cd, Cr, Fe, Mn and Zn were higher in periwinkle than other metals (Cu and Pb) determined, the values of which were opposed to the FEPA (Federal Environmental Protection Agency) and WHO (World Health Organization) permissible limits for ingestion of this aquatic resource. There were no significant variations recognized among the monthly accumulation of metals by the species. The results obtained from the present study revealed an evidence of the periwinkle fauna to bio-concentrate these heavy metals.

scholarly journals Teratogenicity, Mutagenicity, Carcinogenicity, Genotoxicity and Toxicity of Petroleum- contaminated Wastewater in Niger-Delta Nigeria

2020 ◽  
pp. 1-9
Author(s):  
Fawole Charles ◽  
S. J. Salami ◽  
D. A. Dashak
Keyword(s):  
Environmental Protection ◽  
Environmental Protection Agency ◽  
Niger Delta ◽  
Standard Procedure ◽  
River Estuary ◽  
World Health ◽  
Wastewater Sample ◽  
Protection Agency ◽  
Molecular Weights ◽  
Us Epa

The chronic human health effects of the 17 US Environmental Protection Agency [USEPA] priority pollutants of polycyclic aromatic hydrocarbons [PAHs] were investigated and characterized in petroleum contaminated wastewater discharged indiscriminately into the surface water of Okpoka creek off the upper Bonny River estuary in the Niger-Delta. Collections and sampling were conducted under the standard specifications, ethics and protocols of U.S Environmental Protection Agency (EPA). The liquid-liquid extraction of Petroleum contaminated wastewater samples were conducted in accordance with standard procedure of US EPA. Identification and quantification of 17 PAHs were performed by Gas chromatograph with Mass spectrometric detection (GC/MSD) in accordance with standard analytical method of US EPA. The result showed presence of Naphthalene [2.6000 mg/l], Acenaphthylene [8.0000 mg/l], Acenaphthene [0.0000 mg/l], Fluorene [9.0008 mg/l], Anthracene [0.0000 mg/l], Phenanthrene [0.0000 mg/l], O-Terphenyl [5.0200 mg/l], Fluoranthene [1.1000 mg/l], Pyrene [8.0000 mg/l], Benz[a]anthracene [1.0900 mg/l], Chrysene [0.0000 mg/l], Benzo[b]fluoranthene [10.0000 mg/l], Benzo[k]fluoranthene [0.0000 mg/l], Benzo[e]pyrene [0.0000 mg/l], Dibenzo [a,h] anthracene [4.0100 mg/l], Indeno[1,2.3-cd]pyrene [9.2000 mg/l] and Benzo[g,h,i]perylene [3.0000 mg/l]. The results also indicated that some of the 17 PAHs constituents were above the PAHs World Health Organization [2003] maximum permissible limits (MPL) in drinking water (0.0020 mg/l) with 64% and 35.29% below the MPL. The low molecular weights of PAHs [LPAHs] were 40.60% and high molecular weights of PAHs [HPAHs] were 59.40%. Human teratogenic PAHs [9.09%], Human mutagenic PAHs [24.24%], Human carcinogenic PAHs [24.24%], Human genotoxic PAHs [18.18%] and other toxics [24.24%]. Thus, total PAHs concentrations gave 61.2800 mg/l of the petroleum contaminated wastewater sample.

scholarly journals Detection of Organochlorine Pesticide (OCPs) Residues and Trace Metals in Some Selected Malt Drinks in Nigeria

Beverages ◽  
2018 ◽  
Vol 4 (3) ◽  
pp. 65 ◽  
Author(s):  
Godwin Olutona ◽  
Sophia Livingstone
Keyword(s):  
Drinking Water ◽  
Trace Metals ◽  
Environmental Protection Agency ◽  
Atomic Absorption Spectrophotometry ◽  
World Health ◽  
Gas Chromatograph ◽  
Protection Agency ◽  
Absorption Spectrophotometry ◽  
Total Burden ◽  
Health Organization

In this study we evaluated the trace metals and toxic residues of pesticides in commercial malta drinks sold in Nigeria markets. Residual concentrations of seventeen (17) chlorinated hydrocarbons and trace metals were determined in fifteen samples of three batches each of five selected brands of Malta drink sold in Nigeria markets. Gas Chromatograph-Electron Capture Detector (GC-ECD) and Atomic Absorption Spectrophotometry (AAS) were employed in quantitative analysis. The results revealed that all the malt drink analyzed have one or more OCPs detected. The presence of eleven (11) OCPs residue were detected at varying concentrations. The total burden of OCPs in the samples was in the following order: AMS > DUB > MAG > HIM > MLT. Trace metals results revealed that Cd was below detection limit in all the samples while Pb; Ni and Cr were above World Health Organization and United State Environmental Protection Agency (WHO/USEPA) limits for drinking water.

scholarly journals Concentration of heavy metals in the drinking water of Kut city - Iraq and their impact on health

2021 ◽  
Vol 2114 (1) ◽  
pp. 012050
Author(s):  
Mohammad Yahya R Al-Yasiri ◽  
Hadi Dwaich Z. Al-Attabi
Keyword(s):  
Heavy Metal ◽  
Drinking Water ◽  
Water Samples ◽  
World Health ◽  
Metal Concentrations ◽  
Supply Networks ◽  
Heavy Metal Concentrations ◽  
Health Organization ◽  
The City

Abstract The quality of drinking water is related to the state of the water supply networks, pollution, and contamination of drinking water with contaminants of both anthropogenic and natural origin. Water samples were collected from 22 different waterworks in Kut, Iraq, and heavy metal concentrations (Pb, Ni, and Zn) were analyzed. In various parts of the city, 22 sampling sites were pre-defined. The results indicated that heavy metal concentrations in water samples did not surpass WHO guidelines (World Health Organization).

scholarly journals Hungarian indoor air quality study

2010 ◽  
Vol 151 (6) ◽  
pp. 213-219 ◽  
Author(s):  
Dávid László Tárnoki ◽  
Ádám Domonkos Tárnoki ◽  
Andrew Hyland ◽  
Mark J. Travers ◽  
Katharine Dobson ◽  
...  
Keyword(s):  
Air Quality ◽  
World Health Organization ◽  
Environmental Protection ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Environmental Protection Agency ◽  
World Health ◽  
Protection Agency ◽  
Quality Study ◽  
Health Organization

Célunk az volt, hogy összehasonlítsuk a dohányzó és nemdohányzó beltéri közösségi helyek légszennyezettségszintjét Magyarországon. Itthon még nem készült ilyen tanulmány. Módszer: TSI SidePak AM510 Personal aerosolmonitorral mértük a 2,5 mikrométer átmérőnél kisebb részecskék (PM 2,5 ) koncentrációját 6 kocsma, 5 étterem, 11 kávézó és 20 egyéb helyiség környezeti levegőjében Budapesten és Zalakaroson 2008. január és augusztus között. Eredmények: Azon a 26 helyen, ahol dohányoztak, az átlag-PM 2,5 -szint 102,3 μg/m 3 (tartomány: 3–487 μg/m 3 ); a nemdohányzó 16 hely átlagértéke pedig 5,1 μg/m 3 (tartomány: 0–28 μg/m 3 ) volt. Következtetések: A magyarországi dohányzó beltéri közösségi helyeken a mért kisméretű részecske koncentrációja 18-szor volt magasabb, mint azokon a helyeken, ahol nem dohányoztak. Közel minden esetben a mért értékek túllépték az Egészségügyi Világszervezet (World Health Organization) és a US Environmental Protection Agency által az emberi egészségre károsnak tartott tartományt.

scholarly journals Assessment of Some Heavy Metals in Two Species of Goby (Porogobius Schelegelii and Bathygobius Soporator) From Buguma Creek, Niger Delta

2021 ◽  
pp. 46-51
Author(s):  
Wilfred–Ekprikpo P. C.
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
World Health ◽  
High Concentration ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer ◽  
Fish Samples ◽  
Health Organization

This study investigated the heavy metal concentrations in different organs such as gills, muscles, liver and gatro-intestinal tract (GIT) of two species of Goby: Porogobius schelegelii and Bathygobius soporator from Buguma Creek, Rivers State, Nigeria. The fish samples were collected from the creek and were preserved in ice chest box and transported to the laboratory for analysis. Samples were digested by using standard laboratory methods. The concentrations of metals were analyzed using a Varian AA240 Fast Sequential Flame Atomic Absorption Spectrophotometer (AAS). The Results obtained indicated that heavy metals such as Chromium (Cr), Lead (Pb), Zinc (Zn), Cadmium (Cd), and Nickel (Ni) were significantly higher (p<0.05) in the liver of the two species than in the muscle, gills and the GIT. Comparatively, the concentrations of these metals were higher in the specie B.soporator than P. schelegelii in all the organs of the fishes under consideration. The heavy metal concentrations recorded in this study were above the limits recommended by Food and Agricultural Organization/ World Health Organization. The high concentration of heavy metals above permissible level suggests the need for caution during the consumption of these species from Buguma Creek due to health implications associated with heavy metals.

scholarly journals Determination of Heavy Metals in Fish Tissues, Water and Sediment from Epe and Badagry Lagoons, Lagos, Nigeria

2010 ◽  
Vol 7 (1) ◽  
pp. 215-221 ◽  
Author(s):  
R. A. Olowu ◽  
O. O. Ayejuyo ◽  
G. O. Adewuyi ◽  
I. A. Adejoro ◽  
A. A. B. Denloye ◽  
...  
Keyword(s):  
Environmental Protection Agency ◽  
World Health ◽  
Protection Agency ◽  
Fish Tissues ◽  
Maximum Permissible Level ◽  
A Value ◽  
Water And Sediment ◽  
Lagos State ◽  
Health Organization

Water samples, sediments, tilapia and cat fishes from each of Epe and Badagry lagoons in Lagos State, Nigeria were analyzed quantitatively for the presence of zinc, nickel and iron using Perking Elmer atomic absorption spectrophotometer. The sediment contains higher concentration of Fe with a value of 13.30 µg/g against 8.400 µg/g in fishes and 7.30 mg/L in water. Studies on the different parts of the fish revealed higher concentrations of 4.00 µg/g Ni on the head of tilapia fish followed by 2.40 µg/g Ni in the intestine of cat fish. The highest concentration of 1.95 µg/g Zn was detected on the head of the cat fish while the lowest concentration with a value of 0.16 µg/g was recorded in tilapia head. The concentration of Zn in the water is within the limits permitted by the Lagos State Environmental Protection Agency (LASEPA) of 1.0 mg/L Zn set for water. None of the trace metals investigated was above the maximum permissible level set by world health organization ( WHO).

scholarly journals Risk Assessment of Kumasi Metropolis Population in Ghana through Consumption of Fish Contaminated with Formaldehyde

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Noah Kyame Asare-Donkor ◽  
Raymond Akanwi Adaagoam ◽  
Ray Bright Voegborlo ◽  
Anthony Apeke Adimado
Keyword(s):  
Fish Species ◽  
Environmental Protection Agency ◽  
Hazard Quotient ◽  
Daily Intake ◽  
The United States ◽  
World Health ◽  
Fish Ponds ◽  
Protection Agency ◽  
Adverse Health Effects ◽  
Health Organization

This study evaluates the exposure of the Ghanaian population of the Kumasi Metropolis of Ghana to formaldehyde through the consumption of fish using 3-Methyl-2-Benzothiazoline Hydrazone method, with trichloroacetic acid as an extracting agent. A total of sixty (60) fish species comprising both local and imported fish were bought from cold stores and fish ponds were analysed. Formaldehyde was found in all the species analysed with concentration ranging from 0.174 to 3.710 μgg−1. However, the levels were still lower than 5 mg/kg, which is the maximum limit established by the Malaysian Food Act and Regulation for formaldehyde in fish. The estimated daily intake values for formaldehyde in the fish species analysed ranged between 4.233 × 10−4 and 3.661 × 10−3 mg/kg BW/day and this was less than the acceptable daily intake of 0.15 and 0.2 mg/kg BW/day suggested by World Health Organization and the United States Environmental Protection Agency for formaldehyde intake, respectively. The results for the hazard quotient calculated for all the species were less than one suggesting that the amount of formaldehyde in the fish is not likely to pose any potential adverse health effects to consumers. Thus, wet fish from Kumasi may be considered safe for consumption because of low formaldehyde content.

scholarly journals HEAVY METAL CONTENT IN SOME SEAFOODS COLLECTED FROM MUARA ANGKE FISH AUCTION PLACE, JAKARTA.

1987 ◽  
Vol 26 ◽  
pp. 51-58
Author(s):  
Horas Hutagalung ◽  
Suwirma Syamsu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Content ◽  
Heavy Metal Content ◽  
World Health ◽  
Human Consumption ◽  
Zn Content ◽  
Standard Set ◽  
Health Organization

Determination of  heavy  metal  content  (Hg, Pb, Cd, Cu, Cr, Zn) in some seafoods collected from  Muara  Angke  Fish  Auction  Place  were carried out during February to July 1979. The results showed  that Zn  content  in seafoods a nalyzed  was always much higher than the other heavy metals. The concentration levels of  the  six  heavy  metals observed were low. It is almost of the same level as the metal concentration of  other  seafoods  observed  in various parts of the world oceans, but still lower  than the maximum standard set  for human  consumption  as  established  by   Tasmania, Australia and  World Health Organization. The  mean  per capita  consumption of  fish  in Jakarta is only  about 165 g  per week, while  the  Provisional Tolerated Weekly Intake for Hg, set by WHO/FAO at 300 ug level, would be attained by consuming 1500 g Rastrelliger sp., or 698 gPenaeus setiferus, or 545 g Sepia sp., and or 1250 g Pecten sp.  Therefore,  at   present the  level of metal content in fishes sold at TPI  Muara  Angke  can be  considered  as  not  dangerous  to human health as long as these quantities are not surpassed.

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