scholarly journals Issues and Challenges in the Application of the IEUBK Model in the Health Risk Assessment of Lead: A Case Study from Blantyre Malawi

Author(s):  
Wells Utembe ◽  
Mary Gulumian

The risk assessment of lead (Pb) requires the use of biokinetic models to translate measured concentrations of Pb in food and environmental media into blood lead (BPb). The aim of this study was to assess the applicability of the Integrated Exposure Uptake Biokinetic (IEUBK) model in the health risk assessment of Pb among children in Blantyre. Children (152) aged 1–6 years were recruited into this cross-sectional study, and foods, house dust, playground soil, water, and venous blood (1 mL) were collected and analyzed for Pb. A seven-day food frequency questionnaire (FFQ) was used to collect food consumption data. The concentrations of Pb ranged from 0.01 to 3.3 mg/kg in food, 2.3 to 265 mg/kg and 1.5 to 482 mg/kg in house dust and playground soil, respectively, as well as 2.0 µg/dL to 50.4 µg/dL and 6.8 to 39.2 µg/dL for measured and predicted BPb, respectively. Various statistical tests indicated less than satisfactory agreement between measured and predicted BPb values. Despite the lack of reliable food consumption data and other limitations, both the predicted and measured BPb values indicate that children in Blantyre are exposed to high levels of Pb, largely through food and soil as a minor source.

Nutrients ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2289 ◽  
Author(s):  
María Belén Ruíz-Roso ◽  
Patricia de Carvalho Padilha ◽  
Diana C. Matilla-Escalante ◽  
Paola Brun ◽  
Natalia Ulloa ◽  
...  

Aim: to describe physical activity and ultra-processed foods consumption, their changes and sociodemographic predictors among adolescents from countries in Europe (Italy and Spain) and Latin America (Brazil, Chile, and Colombia) during the SARS-CoV-2-pandemic period. Methods: Cross-sectional study via web survey. International Physical Activity Questionnaire (IPAQ) and weekly ultra-processed food consumption data were used. To compare the frequencies of physical activity status with sociodemographic variables, a multinomial logistic and a multiple logistic regression for habitual ultra-processed foods was performed. In final models, p < 0.05 was considered significant. Results: Sample of 726 adolescents, mostly females (59.6%) aged 16–19 years old (54.3%). Adolescents from Latin America presented odds ratio (OR) 2.98 (CI 95% 1.80–4.94) of being inactive and those whose mothers had higher level of education were less active during lockdown [OR 0.40 (CI 95% 0.20–0.84)]. The habitual ultra-processed consumption was also high during this period in all countries, and more prevalent in Latin America. Conclusion: A higher prevalence of inactivity was observed in this population, but reductions of physical activity and habitual ultra-processed consumption during the pandemic were more pronounced in Latin America. Our findings reinforce the importance of promoting a healthy lifestyle, i.e., exercise and diet, during periods of social isolation.


Author(s):  
Muhammad Syafiq N ◽  
◽  
Shaharuddin MS ◽  
Zaenal Abidin ◽  
◽  
...  

ABSTRACT Introduction: Contamination of nitrate is one of the most common groundwater problems worldwide. Around 70% of residents in the state of Kelantan still rely on groundwater as their primary source of water supply. Extensive usage of fertilizer in agricultural areas may cause nitrate leaching into the groundwater. This study aimed to determine the level of nitrate in groundwater and health risk assessment at three villages in Tanah Merah District, Kelantan, Malaysia. Subjects and Method: This was a cross-sectional study conducted at Tanah Merah district, Kelantan, in January 2020. A total of 52 residents was selected by purposive sampling. The inclusion criteria for study subjects were long life residents, age ≥18 years old, and groundwater as a primary source of drinking supply. The study variables were (1) Level of nitrate in groundwater measured according to age (year), depth (meter), and distance (meter) of well from the agricultural area; and (2) Health risk assessment measured by hazard quotient (HQ). A set of questionnaires consisted of four sections to gather information related to socio-demographic, water usage, living environment, and health status. Groundwater samples were collected in duplicates and were analysed using a Hanna Instruments portable pH/ORP/ISE meter with an attached nitrate electrode. The data were reported descriptively. Results: Nitrate levels were found to be under the maximum acceptable value of 10 mg/L, as stated by the Drinking Water Quality Standard of Malaysia. Nitrate level ranged from 0.22 to 8.81 mg/L (Mean= 2.94; SD= 2.27). Spearman rho correlation showed that nitrate level was significantly and negatively correlated the age of wells (r= -0.31; p= 0.025). Nitrate level was not significantly correlated with the depth (r= 0.19; p= 0.183) and distance of wells (r= -0.05; p= 0.751). Hazard quotient (HQ) for all study subjects was <1, which means that exposure to nitrate contained drinking water in study subjects was not detrimental to health. Conclusion: Nitrate levels were below the maximum acceptable value, but continuous monitoring from health authorities is essential since other seasons of paddy planting may contribute higher deposition of nitrate into groundwater. Keywords: nitrate, groundwater, levels, hazard quotient, Tanah Merah Correspondence: Muhammad Syafiq N. Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia. UPM Serdang, Selangor, Malaysia. Email: [email protected]. Mobile: +601140731881. DOI: https://doi.org/10.26911/the7thicph.01.27


2017 ◽  
Vol 59 ◽  
pp. 111-123 ◽  
Author(s):  
Sophie Birot ◽  
Charlotte B. Madsen ◽  
Astrid G. Kruizinga ◽  
Tue Christensen ◽  
Amélie Crépet ◽  
...  

2010 ◽  
Vol 13 (6A) ◽  
pp. 915-919 ◽  
Author(s):  
Heli Reinivuo ◽  
Tero Hirvonen ◽  
Marja-Leena Ovaskainen ◽  
Tommi Korhonen ◽  
Liisa M Valsta

AbstractA cross-sectional survey, FINDIET 2007, was carried out in Finland. Food intake data was collected by a 48 h recall interview. Additional food intake data was collected by a repeated 3 d food diary, a barcode-based product diary, a food frequency questionnaire and by a supplementary questionnaire on rarely eaten foods. The purpose of the present paper is to describe the methodology of the national dietary survey and to discuss the particular implications for the applications of food consumption data in risk assessment. The food consumption data of the FINDIET 2007 survey can be used in food risk assessment, due thanks to flexible data processing of individual food consumption, and a risk assessment point of view was taken into account. However, international standardisation projects are needed in order to estimate comparable food intakes.


2014 ◽  
Vol 5 (1) ◽  
pp. 113-118 ◽  
Author(s):  
Yousef Moghaddasi ◽  
Seyedtaghi Mirmohammadi ◽  
Anees Ahmad ◽  
Syavash Etemadi Nejad ◽  
Jamshid Yazdani

2014 ◽  
Vol 16 (4) ◽  
pp. e106
Author(s):  
Justin B Dickerson ◽  
Catherine J McNeal ◽  
Ginger Tsai ◽  
Cathleen M Rivera ◽  
Matthew Lee Smith ◽  
...  

2018 ◽  
Vol 10 (1) ◽  
pp. 116
Author(s):  
Romi Darmawan

Nowadays NO2 ambient level has been increasing in year to year. Pollutant level which has over level from the threshold limit will give some of bad effects to environment and human health. The aim of this study was to measure the environmental health risk assessment of NO2 ambient level and toll collectors officer ‘s health complaints at Toll gate of Dupak 1, Surabaya. This was descriptive study with cross sectional design. Interview was done to 17 respondents who met the conclusion criteria to know respondent’s health complaints. Independent variables were NO2 level, sex, age, weight, length of work in a day and work period. Where as dependent variabel was toll collectors officer’s of Toll gate of Dupak 1 Surabaya health complaints, such as: headache, eyes irritation, red eyes, hard to breath and cough. Result shown that respondent with 62 weight average were not safe work in Toll gate of Dupak 1 if the air velocity was 0.83 m3/ hour, in 8 hour/day, average of time in 350 days/year for next 30 years if NO2 level had maximal concentration 0.1183 ppm (RQ > 1). The majority of health complaints were cough 82.3%, red eyes 70.5%, eyes irritation 64.7%, headache 53%, and hard to breath 47%. However risk quotient of NO2 exposure was not safe for respondent with pollutants level appropriate to the measurement result and should have preventive action like as consume vitamin C and E and use N95 and regulations for using masker and not smoking while work have to applied strictly.


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