scholarly journals Patterns of Fish and Whale Consumption in Relation to Methylmercury in Hair among Residents of Western Canadian Arctic Communities

2020 ◽  
Author(s):  
Emily Victoria Walker ◽  
Yuan Yuan ◽  
Safwat Girgis ◽  
Karen J. Goodman
Keyword(s):  
Inductively Coupled Plasma ◽  
Marine Mammals ◽  
Canadian Arctic ◽  
Health Concern ◽  
Inductively Coupled ◽  
Hair Samples ◽  
Plasma Mass Spectrometry ◽  
The Mean ◽  
Arctic Communities ◽  
Fort Mcpherson

Abstract Background: Methylmercury contamination of the environment represents a substantial environmental health concern. Human exposure to methylmercury occurs primarily through consumption of fish and marine mammals. Heavily exposed subgroups include sport or subsistence fishers residing in Arctic communities. We aimed to estimate the association of fish/whale consumption patterns of Canadian Arctic subsistence fishers with the internal dose of methylmercury as measured in hair. Methods: This research was conducted within ongoing community projects led by the CAN Help Working Group in Aklavik and Fort McPherson, Northwest Territories and Old Crow, Yukon. We interviewed each participant using a fish-focused food-frequency questionnaire during September-November 2016 and collected hair samples concurrently. Methylmercury was measured in the full-length of each hair sample using gas chromatography inductively-coupled plasma-mass spectrometry. Multivariable linear regression estimated beta-coefficients and 95% confidence intervals (CIs) for the effect of fish/whale consumption on hair-methylmercury concentrations. Results: Among 101 participants who provided hair samples and diet data, the mean number of fish/whale species eaten was 3.5 (SD:1.9). The mean hair-methylmercury concentration was 0.60μg/g (SD:0.47). Fish/whale consumption was positively associated with hair-methylmercury concentration, after adjusting for sex, hair length and use of permanent hair treatments. Hair-methylmercury concentrations among participants who consumed the most fish/whale in each season ranged from 0.30- 0.50μg/g higher than those who consumed <1 meal/week. Conclusions: In this population of Canadian Arctic subsistence fishers, hair-methylmercury concentration increased with fish/whale consumption, but the maximum concentrations were below Health Canada’s 6.0μg/g threshold for safe exposure.

scholarly journals Patterns of Fish and Whale Consumption in Relation to Methylmercury in Hair among Residents of Western Canadian Arctic Communities

2020 ◽  
Author(s):  
Emily Victoria Walker ◽  
Yuan Yuan ◽  
Safwat Girgis ◽  
Karen J. Goodman
Keyword(s):  
Inductively Coupled Plasma ◽  
Marine Mammals ◽  
Canadian Arctic ◽  
Health Concern ◽  
Inductively Coupled ◽  
Hair Samples ◽  
Plasma Mass Spectrometry ◽  
The Mean ◽  
Arctic Communities ◽  
Fort Mcpherson

Abstract Background. Methylmercury contamination of the environment represents a substantial environmental health concern. Human exposure to methylmercury occurs primarily through consumption of fish and marine mammals. Heavily exposed subgroups include sport or subsistence fishers residing in Arctic communities. We aimed to estimate the association of fish/whale consumption patterns of Canadian Arctic subsistence fishers with the internal dose of methylmercury as measured in hair. Methods. This research was conducted within ongoing community projects led by the CANHelp Working Group in Aklavik and Fort McPherson, Northwest Territories and Old Crow, Yukon. We interviewed each participant using a fish-focused food-frequency questionnaire during September-November 2016 and collected hair samples concurrently. Methylmercury was measured in the full-length of each hair sample using gas chromatography inductively-coupled plasma-mass spectrometry. Multivariable linear regression estimated beta-coefficients and 95% confidence intervals (CIs) for the effect of fish/whale consumption on hair-methylmercury concentrations. Results. Among 101 participants who provided hair samples and diet data, the mean number of fish/whale species eaten was 3.5 (SD:1.9). The mean hair-methylmercury concentration was 0.60μg/g (SD:0.47). Fish/whale consumption was positively associated with hair-methylmercury concentration, after adjusting for sex, hair length and use of permanent hair treatments. Hair-methylmercury concentrations among participants who consumed the most fish/whale in each season ranged from 0.30- 0.50μg/g higher than those who consumed <1 meal/week.Conclusions. In this population of Canadian Arctic subsistence fishers, hair-methylmercury concentration increased with fish/whale consumption, but the maximum concentrations were below Health Canada’s 6.0μg/g threshold for safe exposure.

scholarly journals Patterns of Fish and Whale Consumption and Concentrations of Methylmercury in Hair Among Residents of Western Canadian Arctic Communities

2019 ◽  
Author(s):  
Emily Victoria Walker ◽  
Yuan Yuan ◽  
Safwat Girgis ◽  
Karen J. Goodman
Keyword(s):  
Inductively Coupled Plasma ◽  
Marine Mammals ◽  
Canadian Arctic ◽  
Consumption Patterns ◽  
Health Concern ◽  
Inductively Coupled ◽  
Hair Samples ◽  
The Mean ◽  
Arctic Communities ◽  
Fort Mcpherson

Abstract Background. Methylmercury contamination of the environment represents a substantial environmental health concern. Human exposure to methylmercury occurs primarily through consumption of fish and marine mammals. Heavily exposed subgroups include sport or subsistence fishers residing in Arctic communities. We aimed to estimate the association of fish/whale consumption patterns of Canadian Arctic subsistence fishers with the internal dose of methylmercury as measured in hair. Methods. This research was conducted within ongoing community projects led by the CANHelp Working Group in Aklavik and Fort McPherson, Northwest Territories and Old Crow, YT. We interviewed each participant using a fish-focused food-frequency questionnaire during September-November 2016 and collected hair samples concurrently. Methylmercury was measured in the full-length of each hair sample using gas chromatography inductively-coupled plasma-mass spectrometry. Multivariable random-effects linear regression estimated beta-coefficients and 95% confidence intervals (CIs) for the effect of fish/whale consumption on hair-methylmercury concentrations. Results. In total, 101 participants provided hair samples and diet data. The mean number of fish/whale species eaten by participants was 3.5 (SD:1.9). The mean hair-methylmercury concentration was 0.60μg/g (SD:0.47). Fish/whale consumption was positively associated with hair-methylmercury concentration, after adjusting for sex, hair length and use of permanent hair treatments. Hair-methylmercury concentrations among participants who consumed the most fish/whale in each season ranged from 0.30- 0.50μg/g higher than those who consumed <1 meal/week. Conclusions. Hair-methylmercury concentrations were below the 6.0μg/g threshold for safe exposure defined by Health Canada, suggesting that fish/whale consumption patterns among participants are not increasing their risk of known serious health effects of methylmercury exposure.

scholarly journals Elemental Composition of PM2.5 and PM10 and Health Risks Assessment in the Industrial Districts of Chelyabinsk, South Ural Region, Russia

2021 ◽  
Vol 18 (23) ◽  
pp. 12354
Author(s):  
Tatyana G. Krupnova ◽  
Olga V. Rakova ◽  
Kirill A. Bondarenko ◽  
Artem F. Saifullin ◽  
Darya A. Popova ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Airborne Particulate Matter ◽  
Carcinogenic Risk ◽  
Inductively Coupled ◽  
Traffic Volumes ◽  
Plasma Mass Spectrometry ◽  
The Mean ◽  
Risks Assessment ◽  
Pollution Impacts ◽  
Pm2.5 And Pm10

Air pollution impacts all populations globally, indiscriminately and has site-specific variation and characteristics. Airborne particulate matter (PM) levels were monitored in a typical industrial Russian city, Chelyabinsk in three destinations, one characterized by high traffic volumes and two by industrial zone emissions. The mass concentration and trace metal content of PM2.5 and PM10 were obtained from samples collected during four distinct seasons of 2020. The mean 24-h PM10 ranged between 6 and 64 μg/m3. 24-h PM2.5 levels were reported from 5 to 56 μg/m3. About half of the 24-h PM10 and most of the PM2.5 values in Chelyabinsk were higher than the WHO recommendations. The mean PM2.5/PM10 ratio was measured at 0.85, indicative of anthropogenic input. To evaluate the Al, Fe, As, Cd, Co, Cr, Cu, Mn, Ni, Pb, and Zn concentration in PM2.5 and PM10, inductively coupled plasma mass spectrometry (ICP-MS) was used. Fe (337–732 ng/m3) was the most abundant component in PM2.5 and PM10 samples while Zn (77–206 ng/m3), Mn (10–96 ng/m3), and Pb (11–41 ng/m3) had the highest concentrations among trace elements. Total non-carcinogenic risks for children were found higher than 1, indicating possible health hazards. This study also presents that the carcinogenic risk for As, Cr, Co, Cd, Ni, and Pb were observed higher than the acceptable limit (1 × 10−6).

Determination of Iodine in Low Mass Human Hair Samples by Inductively Coupled Plasma Mass Spectrometry

2007 ◽  
Vol 79 (4) ◽  
pp. 401-404 ◽  
Author(s):  
K. E. Levine ◽  
A. S. Essader ◽  
F. X. Weber ◽  
J. M. Perlmutter ◽  
L. S. Milstein ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Human Hair ◽  
Inductively Coupled Plasma ◽  
Inductively Coupled ◽  
Hair Samples ◽  
Plasma Mass Spectrometry ◽  
Low Mass

MEASUREMENT OF URANIUM IN URINE, HAIR AND NAILS IN SUBJECTS OF NISKA BANJA TOWN, A HIGH NATURAL BACKGROUND RADIATION AREA OF SERBIA

2019 ◽  
Vol 184 (3-4) ◽  
pp. 319-323
Author(s):  
Z S Žunic ◽  
L Benedik ◽  
R Kritsananuwat ◽  
N Veselinovic ◽  
S Tokonami ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Background Radiation ◽  
The Public ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry ◽  
Geological Origin ◽  
Public Exposure ◽  
The Mean ◽  
High Level ◽  
Radiation Area

Abstract Urine, hair and nail samples were collected from a population of both sex aged from 40 to 87 years in Niška Banja (227 km south of Belgrade, Serbia) with a high level of natural radioactivity (HLNRA). To assess and monitor the public exposure, urine samples for each subject (24 h period) were collected and concentration of uranium (U) was analysed using alpha-particle spectrometry. Human hair and nails considered as bio-indicators of the public exposure to radionuclides over a long period of months or even years and concentration of U was determined using inductively coupled plasma-mass spectrometry. The mean concentrations of U in urine, hair and nail were 123 ng/L, 17 ng/g and 8 ng/g, respectively. There was a large variation and may be due to geological origin.

scholarly journals Hair Mercury Levels Detection in Fishermen from Sicily (Italy) by ICP-MS Method after Microwave-Assisted Digestion

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Giuseppe Giangrosso ◽  
Gaetano Cammilleri ◽  
Andrea Macaluso ◽  
Antonio Vella ◽  
Nicolantonio D’Orazio ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Total Mercury ◽  
Control Group ◽  
Inductively Coupled ◽  
Hair Mercury ◽  
Icp Ms ◽  
Hair Samples ◽  
Significant Difference ◽  
Close Relationship ◽  
Plasma Mass Spectrometry

A number of ninety-six hair samples from Sicilian fishermen were examined for total mercury detection by an Inductively Coupled Plasma Mass Spectrometry (ICP-MS) method. The mercury levels obtained were compared with mercury levels of 96 hair samples from a control group, in order to assess potential exposure to heavy metals of Sicilian fishermen due to fish consumption and closeness to industrial activities. Furthermore, the mercury levels obtained from hair samples were sorted by sampling area in order to verify the possible risks linked to the different locations. The overall mean concentration in the hair of the population of fishermen was6.45±7.03 μg g−1, with a highest value in a fisherman of Sciacca (16.48 μg g−1). Hair mercury concentration in fishermen group was significantly higher than in control group (p<0.01). There was no significant difference in hair total mercury concentrations between sampling areas (p>0.05). The results of this study indicate a greater risk of exposure to mercury in Sicilian fishermen, in comparison to the control population, due to the high consumption of fish and the close relationship with sources of exposure (ports, dumps, etc.).

scholarly journals Determination of Nickel and Cadmium in Freshwater Fishes at Sungai Kuantan, Sungai Riau And Sungai Pinang

2021 ◽  
Vol 12 (1S) ◽  
pp. 150-156
Author(s):  
Wan Marlin Rohalin ◽  
Nadzifah Yaakub
Keyword(s):  
Heavy Metal ◽  
Inductively Coupled Plasma ◽  
World Health ◽  
Health Concern ◽  
Inductively Coupled ◽  
Food And Agriculture ◽  
Determination Of Nickel ◽  
Significant Difference ◽  
Plasma Mass Spectrometry ◽  
Health Organization

Heavy metal exhibit toxic and persistent characteristics, can enter into the food chains and the ecosystem where they cause adverse impact on the biotic and abiotic components of ecosystem. Heavy metal pollution in Malaysia has become a major health concern for humans. Thus, this study was conducted to determine the level of cadmium (Cd) and nickel (Ni) in the muscle and gill of fishes collected from the Sungai Kuantan and Sungai Riau. Field sampling was conducted between September and December 2017. Five different species of fishes: Barbonymus gonionotus (Lampam Jawa), B. schwanenfeldii( Lampam Sungai), Hampala macrolepidota(Sebarau), Chitala chitala (Belida), and Hemibagrus nemurus(Baung) were digested by using acid digestion method and analysed with Inductively Coupled Plasma-Mass Spectrometry (ICPMS). Concentration of Cd among species were in order of: H. macrolepidota >B.gonionotus> B. schwanenfeldii> C.chitala> H.nemurus, whereas Ni level in fishes were: C. chitala> H. macrolepidota> B. gonionotus> H. nemurus> B. schwanenfeldii. Among all the species, H. macrolepidota from Sungai Kuantan had the highest Cd in both muscle (0.1761±0.0062¬mg/kg) and gills (0.2938±0.0066mg/kg) whereas the highest Ni level in muscle was noted in C. chitala from Sungai Kuantan with (0.1473±0.0755 mg/kg) and in gills of B.gonionotus (0.4544±0.0470mg/kg) from the same river respectively. It was obtained that there was a significant difference (p<0.05) of Cd in muscle between species. Ni concentration in fishes was below the permissible limit stipulated by World Health Organizations WHO (1985) and Food and Agriculture Organizations (2012) but the concentration of Cd was recorded high. However, it was still below the World Health Organization (WHO) 1985 and Malaysian Food Act (MFA) 1983.

Sign in / Sign up

Export Citation Format

Share Document