scholarly journals Spatial Evaluation of Health Risk due to Inhalation of PM2.5 Pollutants in the Metropolitan Areas of Toluca Valley and Mexico Valley

2021 ◽  
pp. 1-16
Author(s):  
Raúl Venancio Díaz-Godoy ◽  
José López-Monroy ◽  
Jaime Moreno-Alcántara ◽  
Judith Castellanos-Moguel ◽  
María Teresa Nuñez-Cardona ◽  
...  
Keyword(s):  
Health Risk ◽  
Health Risks ◽  
Metropolitan Area ◽  
Metropolitan Areas ◽  
Sampling Site ◽  
X Ray ◽  
Sampling Campaign ◽  
Work Health ◽  
Toluca Valley ◽  
Spatial Evaluation

Aims: In the present work, health risk from inhalation of PM2.5 pollutants in both areas was assessed spatially Place and Duration of Study: The metropolitan areas of the Toluca (MATV) and Mexico Valleys (MAMV), between September and November 2009. Methodology: A simultaneous sampling campaign was conducted in the Toluca and Mexico Valleys on alternate days from September-22 to November-29, 2009. From the samples collected, their gravimetric concentration was obtained, and S, Cl, K, Ca Ti, V, Mn, Fe, Ni, Cu, Zn, and Pb were determined using the particle-induced X-ray emission technique (PIXE). Results: The health risk by inhalation of PM2.5 with a higher result for the metropolitan area of the Toluca Valley (2.09 for adults, 6.25 for children from 6-12 years old, and 6.58 for children from 2-6 years old) in contrast with that of the metropolitan area of the Mexico Valley (1.67 for adults, 5.20 for children from 6-12 years old, and 5.28 for children from 2-6 years old). Conclusion: These results are perhaps due to the higher concentration of Cl and Mn for the MATV. Additionally, the air parcels from sampling site MAMV go to MATV and thus contributes to an increased health risk from inhalation of PM2.5. There are health risks for the inhalation of PM2.5 in the MATV and MAMV study areas. The risk only considers the elemental risk. There are no similar studies for this comparison between MATV and MAMV in the literature.

scholarly journals A Health Risk Assessment of Lead and Other Metals in Pharmaceutical Herbal Products and Dietary Supplements Containing Ginkgo biloba in the Mexico City Metropolitan Area

2021 ◽  
Vol 18 (16) ◽  
pp. 8285
Author(s):  
Patricia Rojas ◽  
Elizabeth Ruiz-Sánchez ◽  
Camilo Ríos ◽  
Ángel Ruiz-Chow ◽  
Aldo A. Reséndiz-Albor
Keyword(s):  
Health Risk ◽  
Dietary Supplements ◽  
Mexico City ◽  
Metropolitan Area ◽  
Ginkgo Biloba ◽  
Graphite Furnace ◽  
Human Health Risk ◽  
Daily Intake ◽  
Herbal Remedies ◽  
Herbal Products

The use of the medicinal plant Ginkgo biloba has increased worldwide. However, G. biloba is capable of assimilating both essential and toxic metals, and the ingestion of contaminated products can cause damage to health. The aim of this study was to investigate the safety of manganese (Mn), copper (Cu), lead (Pb), arsenic (As), and cadmium (Cd) in 26 items containing Ginkgo biloba (pharmaceutical herbal products, dietary supplements, and traditional herbal remedies) purchased in the metropolitan area of Mexico City. Metal analysis was performed using a graphite furnace atomic absorption spectrometer. All of the products were contaminated with Pb, 54% of them with As, and 81% with Cd. The lowest values of Pb, As, and Cd were detected in pharmaceutical herbal products > dietary supplements > traditional herbal remedies. The daily intake dose (DID) of pharmaceutical herbal products was within the established limits for the five metals. Dietary supplements and traditional herbal remedies exceeded the DID limits for Pb. The hazard quotients estimation and non-carcinogenic cumulative hazard estimation index for Mn, As, and Cd indicated no human health risk. Our results suggest that products containing G. biloba for sale in Mexico are not a health risk.

scholarly journals Anthropogenic nitrate in groundwater and its health risks in the view of background concentration in a semi arid area of Rajasthan, India

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Abdur Rahman ◽  
N. C. Mondal ◽  
K. K. Tiwari
Keyword(s):  
Health Risk ◽  
Human Health ◽  
Health Risks ◽  
Anthropogenic Activities ◽  
Probabilistic Approach ◽  
Hazard Index ◽  
Arid Area ◽  
Oral Exposure ◽  
Background Concentration ◽  
Semi Arid

AbstractAn increased nitrate (NO3−) concentration in groundwater has been a rising issue on a global scale in recent years. Different consumption mechanisms clearly illustrate the adverse effects on human health. The goal of this present study is to assess the natural and anthropogenic NO3− concentrations in groundwater in a semi arid area of Rajasthan and its related risks to human health in the different groups of ages such as children, males, and females. We have found that most of the samples (n = 90) were influenced by anthropogenic activities. The background level of NO3− had been estimated as 7.2 mg/L using a probabilistic approach. About 93% of nitrate samples exceeded the background limit, while 28% of the samples were beyond the permissible limit of 45 mg/L as per the BIS limits. The results show that the oral exposure of nitrate was very high as compare to dermal contact. With regard to the non-carcinogenic health risk, the total Hazard Index (HITotal) values of groundwater nitrate were an average of 0.895 for males, 1.058 for females, and 1.214 for children. The nitrate health risk assessment shows that about 38%, 46%, and 49% of the samples constitute the non-carcinogenic health risk to males, females, and children, respectively. Children were found to be more prone to health risks due to the potential exposure to groundwater nitrate.

scholarly journals Geophagic Clays from Cameroon: Provenance, Metal Contamination and Health Risk Assessment

2021 ◽  
Vol 18 (16) ◽  
pp. 8315
Author(s):  
Georges-Ivo Ekosse ◽  
George Elambo Nkeng ◽  
Nenita Bukalo ◽  
Olaonipekun Oyebanjo
Keyword(s):  
Health Risk ◽  
Inductively Coupled Plasma ◽  
Risk Index ◽  
Human Health Risk ◽  
Carcinogenic Risk ◽  
Anthropogenic Sources ◽  
Contamination Assessment ◽  
X Ray ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry

This study assessed the mineralogical and geochemical characteristics of geophagic clays sold in some markets in Cameroon to ascertain their provenance, contamination status and human health risk. To achieve this, 40 samples from 13 markets in Cameroon were purchased and analysed using X-ray diffractometry, X-ray fluorescence and laser ablation inductively coupled plasma mass spectrometry for their mineralogy and geochemistry, respectively. The geophagic clays were dominantly made up of kaolinite and quartz. Their chemistry was dominated by SiO2, Al2O3 and LOI with means of 48.76 wt%, 32.12 wt% and 13.93 wt%, respectively. The major, trace and rare earth elements data showed that these geophagic clays were predominantly derived from felsic rocks. The contamination assessment indicated no enrichment of metals from anthropogenic sources, except for Zn in samples from Acacia, Madagascar and Mfoudi markets. The index of geo-accumulation indicated no contamination to moderate contamination of the clays. The non-carcinogenic index values for Fe, Co, Cr, Cu, Ni, Pb and Zn were generally less than 1, suggesting no non-carcinogenic risk exposure to children and adults consuming the geophagic clays from these metals. The carcinogenic risk index (TCR) for Ni and Cr were above 10−6, which implies that children and adults are vulnerable to minimal carcinogenic health risk. The TCR values from Ni posed the highest risk, especially to children consuming clays from some markets.

Limitations of body mass index for counseling individuals with unilateral lower extremity amputation

2016 ◽  
Vol 41 (2) ◽  
pp. 186-193 ◽  
Author(s):  
Alexandra P Frost ◽  
Tracy Norman Giest ◽  
Allison A Ruta ◽  
Teresa K Snow ◽  
Mindy Millard-Stafford
Keyword(s):  
Body Mass Index ◽  
Lower Extremity ◽  
Health Risk ◽  
Body Mass ◽  
Body Fat ◽  
Lower Limb ◽  
Dual Energy ◽  
Limb Loss ◽  
Percent Body Fat ◽  
X Ray

Background: Body composition is important for health screening, but appropriate methods for unilateral lower extremity amputees have not been validated. Objectives: To compare body mass index adjusted using Amputee Coalition equations (body mass index–Amputee Coalition) to dual-energy X-ray absorptiometry in unilateral lower limb amputees. Study design: Cross-sectional, experimental. Methods: Thirty-eight men and women with lower limb amputations (transfemoral, transtibial, hip disarticulation, Symes) participated. Body mass index (mass/height2) was compared to body mass index corrected for limb loss (body mass index–Amputee Coalition). Accuracy of classification and extrapolation of percent body fat with body mass index was compared to dual-energy X-ray absorptiometry. Results: Body mass index–Amputee Coalition increased body mass index (by ~ 1.1 kg/m2) but underestimated and mis-classified 60% of obese and overestimated 100% of lean individuals according to dual-energy X-ray absorptiometry. Estimated mean percent body fat (95% confidence interval) from body mass index–Amputee Coalition (28.3% (24.9%, 31.7%)) was similar to dual-energy X-ray absorptiometry percent body fat (29.5% (25.2%, 33.7%)) but both were significantly higher ( p < 0.05) than percent body fat estimated from uncorrected body mass index (23.6% (20.4%, 26.8%)). However, total errors for body mass index and body mass index–Amputee Coalition converted to percent body fat were unacceptably large (standard error of the estimate = 6.8%, 6.2% body fat) and the discrepancy between both methods and dual-energy X-ray absorptiometry was inversely related ( r = −0.59 and r = −0.66, p < 0.05) to the individual’s level of body fatness. Conclusions: Body mass index (despite correction) underestimates health risk for obese patients and overestimates lean, muscular individuals with lower limb amputation. Clinical relevance Clinical recommendations for an ideal body mass based on body mass index–Amputee Coalition should not be relied upon in lower extremity amputees. This is of particular concern for obese lower extremity amputees whose health risk might be significantly underestimated based on body mass index despite a “correction” formula for limb loss.

Superstar Cities

2013 ◽  
Vol 5 (4) ◽  
pp. 167-199 ◽  
Author(s):  
Joseph Gyourko ◽  
Christopher Mayer ◽  
Todd Sinai
Keyword(s):  
Metropolitan Area ◽  
Metropolitan Areas ◽  
House Prices ◽  
Aggregate Demand ◽  
House Price ◽  
Lower Income ◽  
Local Factors ◽  
The Past ◽  
Long Run ◽  
Price Appreciation

We document large long-run differences in average house price appreciation across metropolitan areas over the past 50 years, and show they can be explained by an inelastic supply of land in some unique locations combined with an increasing number of highincome households nationally. The resulting high house prices and price-to-rent ratios in those “superstar” areas crowd out lower income households. The same forces generate a similar pattern among municipalities within a metropolitan area. These facts suggest that disparate local house price and income trends can be driven by aggregate demand, not just changes in local factors such as productivity or amenities. (JEL R11, R23, R31, R52)

scholarly journals Frequency and Prioritization of Patient Health Risks from a Structured Health Risk Assessment

2014 ◽  
Vol 12 (6) ◽  
pp. 505-513 ◽  
Author(s):  
S. M. Phillips ◽  
R. E. Glasgow ◽  
G. Bello ◽  
M. G. Ory ◽  
B. A. Glenn ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Health Risks ◽  
Patient Health

Preliminary Findings on Korean Adolescents' Perceptions of Health Risks

2007 ◽  
Vol 101 (3) ◽  
pp. 995-1000
Author(s):  
Youngho Kim
Keyword(s):  
High Schools ◽  
Health Risk ◽  
Health Risks ◽  
Junior High ◽  
Profile Analysis ◽  
The Self ◽  
Korean Students ◽  
Korean Adolescents ◽  
Korean Version ◽  
Risk Judgments

The current study investigated how Korean adolescents perceive their own health risks and compare likelihood of their own health risks with those of others at the same age. 416 Korean students ( M = 16.2 yr., SD = .6) who attended junior high and high schools in Seoul completed a Korean version of the Self-Other Risk Judgments Profile. Analysis indicated adolescents tend to have unrealistic perceptions of their vulnerability to most health risks and perceived their own likelihood of encountering all health risk events as lower than that of others.

scholarly journals Human Health Risk Distribution and Safety Threshold of Cadmium in Soil of Coal Chemical Industry Area

Minerals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 678
Author(s):  
Kai Zhang ◽  
XiaoNan Li ◽  
ZhenYu Song ◽  
JiaYu Yan ◽  
MengYue Chen ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Health Risk ◽  
Human Health ◽  
Health Risks ◽  
Chemical Industry ◽  
Human Health Risk ◽  
Oral Intake ◽  
Carcinogenic Risk ◽  
Kriging Interpolation Method ◽  
Industry Area

Cadmium (Cd) is a highly carcinogenic metal that plays an important role in the risk management of soil pollution. In this study, 153 soil samples were collected from a coal chemical plant in northwest China, and the human health risks associated with Cd were assessed through multiple exposure pathways. Meanwhile, by the Kriging interpolation method, the spatial distribution and health risks of Cd were explored. The results showed that the average concentration of Cd in the soil was 0.540 mg/kg, which was 4.821 and 5.567 times that of the soil background value in Ningxia and China, respectively. In comparison, the concentration of Cd in the soil was below the national soil environmental quality three-level standard (1.0 mg/kg). In addition, health risk assessment results showed that the total carcinogenic risk of Cd was 1.269 × 10−6–2.189 × 10−6, both above the acceptable criteria (1 × 10−6), while the hazard quotient was within the acceptable level. Oral intake and ingestion of soil particles were the main routes of exposure, and the carcinogenic risk control value of oral intake was the lowest (0.392 mg/kg), which could be selected as the strict reference of the safety threshold for Cd in the coal chemical soil. From Kriging, a prediction map can be centrally predicted on heavy metal pollution in the area surrounding the coal entrance corridor and pedestrian entrance. This study can provide a theoretical basis for the determination of the heavy metal safety threshold of the coal chemical industry in China.

scholarly journals Heavy metal concentrations in the edible portions of Centella asiatica: Health risk toward chronic kidney disease of uncertain etiology

2021 ◽  
Vol 3 (6) ◽  
Author(s):  
W. M. Dimuthu Nilmini Wijeyaratne ◽  
Ellewaththe Arachchilage Charuni Se Kumari
Keyword(s):  
Chronic Kidney Disease ◽  
Heavy Metal ◽  
Kidney Disease ◽  
Health Risk ◽  
Health Risks ◽  
Hazard Index ◽  
Organic Matter Content ◽  
Centella Asiatica ◽  
Consumer Safety ◽  
Uncertain Etiology

AbstractCentella asiatica is a commonly consumed green leafy vegetable in many developing countries due its high nutritious value and availability at low cost. The present study was conducted to assess the Cd, Cr and Pb uptake associated health risks of Centella asiatica harvested from organic and non-organic cultivations in a chronic kidney disease of uncertain etiology (CKDue) prevalent area in Sri Lanka. The health risk assessment was conducted in terms of the bioconcentration factor (BCF), soil-to-root and root-to-leaf translocation factors ($${\text{TF}}\,({\text{soil-root}})$$ TF ( soil-root ) and $${\text{TF}}\,({\text{root-leaf}})$$ TF ( root-leaf ) ), Target hazard quotient for each heavy metal (THQ) and hazard index (HI). In addition, the spatial variation of physical and chemical parameters of the root zone soil were assessed using MINITAB 17 statistical software. Results indicated significant spatial variations in conductivity, organic matter content and Cr concentrations among organic and non-organic study sites. The Cr, Cd and Pb concentrations recorded from roots and leaves of Centella asiatica were higher than the safe limits for consumption established by the European Union. The health risk analysis indicated that there is a potential of hyper-accumulating Cd in the roots of Centella asiatica. Further, the THQ and HI of the heavy metals indicated possible adverse non-cancer health risks associated with long-term consumption of leaves of Centella asiatica. Therefore, necessary precautionary actions to prevent the excessive buildup of Cr, Cd and Pb in the edible portions of Centella asiatica are essential in order to ensure consumer safety.

scholarly journals The Delimitation of Bipolar Metropolitan Area Within the Kujawsko-Pomorskie Region

2014 ◽  
Vol 5 (2) ◽  
pp. 101-122 ◽  
Author(s):  
Mirosław Biczkowski ◽  
Iwona Müller-Frączek ◽  
Joanna Muszyńska ◽  
Michał Bernard Pietrzak ◽  
Justyna Wilk
Keyword(s):  
Data Analysis ◽  
Regional Development ◽  
Metropolitan Area ◽  
Multivariate Data Analysis ◽  
Metropolitan Areas ◽  
Linear Arrangement ◽  
Knowledge Based ◽  
Knowledge Based Economy ◽  
Development Levels ◽  
Dual Core

The objective of the article was to re-define the bipolar metropolitan area within the area of the Kujawsko-Pomorskie region (NUTS 2). Concentration of metropolitan features, as well as socio-economic situations of its communes (NUTS 5) in 2011, and also the dynamics of communes’ development in the period 2009-2011 were considered in the procedure of delimitation. Bydgoszcz and Toruń, as the economically strongest cities in the region, were established as the dual core of the bipolar metropolitan area. It was assumed that the determined metropolitan area would cover the best developed and the fastest developing communes which met the following criteria of a metropolitan area: neighbourhood, continuity, compactness, maximum distance and population. The development levels of the communes were determined with the use of synthetic measure. Its values were calculated considering the economic (e.g. the amount of income) and also social (e.g. unemployment) aspects of regional development, as well as features typical of metropolitan areas, such as: well-developed sectors of R&D, knowledge-based economy and serving superior services. In the research, linear arrangement methods classifying as taxonomic tools of multivariate data analysis was applied. The metropolitan area resulting from the research (BipOM) slightly differs from the Bydgoszcz-Toruń Metropolitan Area (B-TOM) which was formally appointed in 2005 and composed all of the communes located within the area of the Bydgoski and Toruński districts (NUTS 4). Chełmża and Koronowo, as the less developed communes of the districts, were excluded from the new metropolitan area, while the communes of Ciechocinek, Nakło and Unisław, belonging to the neighbouring districts of the region, were included in the BipOM due to their significant level of regional development and its dynamics. Furthermore the Inowrocław district (bordered on the BipOM) was identified as the prospective candidate for the BipOM, due to the fact that its communes demonstrate a high potential for regional development.

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