scholarly journals Spatial Analysis of the Relationship between Mortality from Cardiovascular and Cerebrovascular Disease and Drinking Water Hardness

2004 ◽  
Vol 112 (9) ◽  
pp. 1037-1044 ◽  
Author(s):  
Juan Ferrándiz ◽  
Juan J. Abellán ◽  
Virgilio Gómez-Rubio ◽  
Antonio López-Quílez ◽  
Pilar Sanmartín ◽  
...  
Keyword(s):  
Drinking Water ◽  
Spatial Analysis ◽  
Cerebrovascular Disease ◽  
Water Hardness ◽  
The Relationship

Changing Places: Rock Art and Holocene Landscapes in the Wadi al-Ajal, South-West Libya

2014 ◽  
Vol 12 (2) ◽  
pp. 165-182 ◽  
Author(s):  
Tertia Barnett ◽  
Maria Guagnin
Keyword(s):  
Spatial Analysis ◽  
Surface Water ◽  
Rock Art ◽  
Human Settlement ◽  
Gis Model ◽  
South West ◽  
Settlement Location ◽  
Central Sahara ◽  
The Relationship ◽  
Over Time

This article examines the relationship between rock art and landscape use by pastoral groups and early settled communities in the central Sahara from around 6000 BC to 1000 AD. During this period the region experienced significant climatic and environmental fluctuations. Using new results from a systematic survey in the Wadi al-Ajal, south-west Libya, our research combines data from over 2000 engraved rock art panels with local archaeological and palaeoenvironmental evidence within a GIS model. Spatial analysis of these data indicates a correspondence between the frequency of rock art sites and human settlement over time. However, while changes in settlement location were guided primarily by the constraints on accessibility imposed by surface water, the distribution of rock art relates to the availability of pasture and patterns of movement through the landscape. Although the reasons for these movements undoubtedly altered over time, natural routes that connected the Wadi al-Ajal and areas to the south continued to be a focus for carvings over several thousand years.

The Relationship between Concentration and Sensory Properties of 2-Methylisoborneol and Geosmin in Drinking Water

1988 ◽  
Vol 20 (8-9) ◽  
pp. 11-17 ◽  
Author(s):  
T. Ito ◽  
T. Okumura ◽  
M. Yamamoto
Keyword(s):  
Drinking Water ◽  
Water Temperature ◽  
Forced Choice ◽  
Residual Chlorine ◽  
Mixing Ratio ◽  
Consumer Panel ◽  
Triangle Method ◽  
Musty Odor ◽  
The Relationship ◽  
Mixed Samples

The study of the relations between the senses of smell and taste and odorant concentration is important for the solution of odor problems. The threshold concentrations of odor and taste (TOC, TTC) of 2-methylisoborneol (MIB) and geosmin were measured by the non-forced choice triangle method using 12-20 panelists. Both TOC and TTC were found to be functions of water temperature and the concentration of residual chlorine. The TOC and TTC of mixed samples were rather lower than the concentrations calculated from the mixing ratio. The sensitivities of the consumer panel and the number of musty odor complaints from consumers are related to MIB or geosmin concentration. The ratio of the number of complaints to MIB (or geosmin) concentration decreased after maximum complaint, but the sensitivity of the consumer panel remained the same.

scholarly journals The relationship between perchlorate in drinking water and cord blood thyroid hormones: First experience from Iran

2015 ◽  
Vol 6 (1) ◽  
pp. 17
Author(s):  
Parinaz Poursafa ◽  
Ashraf Javidi ◽  
Nasim Rafiei ◽  
MohammadMehdi Amin ◽  
Silva Hovsepian ◽  
...  
Keyword(s):  
Drinking Water ◽  
Thyroid Hormones ◽  
Cord Blood ◽  
The Relationship

Assessment of the drinking water quality for planning endogenic prevention of dental caries

2021 ◽  
Vol 21 (2) ◽  
pp. 88-93
Author(s):  
A. B. Shashmurina ◽  
O. L. Mishutina ◽  
V. R. Shashmurina
Keyword(s):  
Drinking Water ◽  
Dental Caries ◽  
Water Supply ◽  
Fluoride Concentration ◽  
Water Hardness ◽  
Drinking Water Supply ◽  
Ion Concentration ◽  
Normal Range ◽  
Hydrogen Ion Concentration ◽  
Normal Limits

Relevance. Dental caries is a leading dental disease in children. Aim – to study the quality of drinking water in Smolensk and its region to provide evidence for implementing dental caries preventive measures in children.Materials and methods. We took tap water samples from ten water intake points in seven districts of Smolensk and six Smolensk regions. An accredited testing laboratory of the Center for Hygiene and Epidemiology in the Smolensk Region carried out water chemical analysis. The study analyzed standard parameters of drinking water quality: pH 6.5-8.5, fluoride content 0.60-1.2 mg/l; water hardness 7.0-9.0 (Sanitary Regulations and Standards 2.1.4.1116-02). The parameter was considered normal if its 95% confidence interval was within the reference range.Results. In Smolensk, the hydrogen ion concentration in centralized drinking water supply systems is within normal limits and amounts to 7.39 (95% CI: 7.32-7.46; р < 0,05) pH units. The mean fluoride concentration in the Smolensk water is 0.19 (95% CI: 0.14-0.23; р < 0,05) mg/l, which is below the normal range. In most Smolensk districts, water hardness is within normal limits, 8.21 mmol/l (95% CI: 7.03-9.39; р < 0,05). However, the upper limit of the confidence interval of 9.39 mg/l and the maximum of 12.0 mg/l exceed the normal range. In the Smolensk region cities, the hydrogen ion concentration is 7.2 (95% CI: 7.02-7.38; р < 0,05) pH units in the centralized drinking water supply. The fluoride concentration in the Smolensk region water is 0.45 mg/l (95% CI: 0.23-0.68; р < 0,05), which demonstrates the fluoride deficiency in water. In the Smolensk region cities, mean water hardness is 6.66 mmol/l (95% CI: 6.00-7.03; р < 0,05), which is below the normal values. However, the CI upper limit of 7.03 mmol/l and the maximum of 7.05 mmol/l are within normal limits.Conclusions. The water of the centralized drinking water supply system in Smolensk and the Smolensk region is low in fluorides. Urgent community and individual preventive measures should be taken to expose children to fluoride.

scholarly journals The relationship of arsenic levels in drinking water and the prevalence rate of skin lesions in Bangladesh.

1999 ◽  
Vol 107 (9) ◽  
pp. 727-729 ◽  
Author(s):  
M Tondel ◽  
M Rahman ◽  
A Magnuson ◽  
I A Chowdhury ◽  
M H Faruquee ◽  
...  
Keyword(s):  
Drinking Water ◽  
Prevalence Rate ◽  
Skin Lesions ◽  
Relationship Of ◽  
The Relationship

scholarly journals Association between Atmospheric Particulate Pollutants and Mortality for Cardio-Cerebrovascular Diseases in Chinese Korean Population: A Case-Crossover Study

2018 ◽  
Vol 15 (12) ◽  
pp. 2835 ◽  
Author(s):  
Chao Zhang ◽  
Zhenyu Quan ◽  
Qincheng Wu ◽  
Zhezhen Jin ◽  
Joseph Lee ◽  
...  
Keyword(s):  
Air Pollution ◽  
Cerebrovascular Disease ◽  
Cerebrovascular Diseases ◽  
Air Pollutant ◽  
Aerodynamic Diameter ◽  
Case Crossover ◽  
Disease Mortality ◽  
Particulate Pollutants ◽  
Pm2.5 And Pm10 ◽  
The Relationship

Background: Air pollution in large Chinese cities has led to recent studies that highlighted the relationship between particulate matters (PM) and elevated risk of cardio-cerebrovascular mortality. However, it is unclear as to whether: (1) The same adverse relations exist in cities with relatively low levels of air pollution; and (2) the relationship between the two are similar across ethnic groups. Methods: We collected data of PM2.5 (PM with an aerodynamic diameter ≤ 2.5 µm) and PM10 (aerodynamic diameter ≤ 10 µm) in the Yanbian Korean Autonomous Prefecture between 1 January 2015 and 31 December 2016. Using a time-stratified case-crossover design, we investigated whether levels of particulate pollutants influence the risk of cardio-cerebrovascular disease mortality among ethnic Korean vs. ethnic Han residents residing in the Yanbian Korean Autonomous Prefecture. Results: Under the single air pollutant model, the odds ratios (ORs) of cardio-cerebrovascular disease were 1.025 (1.024–1.026) for each 10 μg/m3 increase in PM2.5 at lag0 day, 1.012 (1.011–1.013) for each 10 μg/m3 increase in PM10 at lag1 day. In the multi-pollutant model adjusted by PM10, SO2, and NO2, the ORs of cardio-cerebrovascular disease were 1.150 (1.145–1.155) for ethnic Koreans and 1.154 (1.149–1.158) for ethnic Hans for each 10 μg/m3 increase in PM2.5. In the multi-pollutant model adjusted by PM2.5, SO2, and NO2, the ORs of cardio-cerebrovascular disease were 1.050 (1.047–1.053) for ethnic Koreans and 1.041 (1.039–1.043) for ethnic Hans for each 10 μg/m3 increase in PM10. Conclusion: This study showed that PM2.5 and PM10 were associated with increased risks of acute death events in residential cardio-cerebrovascular disease in Yanbian, China.

scholarly journals PERAN LINGKUNGAN DAN INDIVIDU TERHADAP MASALAH DIARE DI PULAU JAWA DAN BALI

2020 ◽  
Vol 19 (2) ◽  
pp. 84-93
Author(s):  
Ika Dharmayanti ◽  
Dwi Hapsari Tjandrarini
Keyword(s):  
Drinking Water ◽  
High Morbidity ◽  
Open Defecation ◽  
Major Health Problem ◽  
Major Health ◽  
Data Source ◽  
Integration Data ◽  
And Behavior ◽  
Diarrhea Disease ◽  
The Relationship

ABSTRACT  Diarrhea is a major health problem in Indonesia with high morbidity and mortality rates. Unhealthy environment and unhygienic behavior are closely related to diarrhea disease. This study aims to identify the association between environmental conditions and behavior with the occurrence of diarrhea in Jawa and Bali. Data source used was the integration data of March’s Susenas and Riskesdas 2018. A logistic regression analysis was chosen to elicit the relationship between sanitation and drinking water facilities, open defecation practice, and other factors with the prevalence of diarrhea. The results showed that open defecation (OR = 1.2; 95% CI: 1.12 to 1.29; P<0.001, and improper of household sanitation and drinking water (OR = 1.11; 95% CI: 1.04 to 1.2; P = 0.003) had significant association with diarrhea. Other factors are age 0-5 years (OR = 1.56; 95% CI: 1.46 to 1.66; P <0,001) and low education (OR = 1.33; 95% CI: 1.21 to 1.47; P <0,001). This study shows the hygienic behavior is the essential factors to reduce the incidence of diarrhea. Therefore, it is recommended to to prioritize aspects of behavior and environmental health, namely changing people’s behavior to defecate in a latrine, and provide proper sanitation and sufficient drinking water. Keywords: Diarrhea; sanitation; drinking water; open defecation   ABSTRAK Penyakit diare merupakan masalah kesehatan utama di Indonesia dengan angka kesakitan dan kematian yang masih tinggi. Lingkungan yang tidak sehat dan perilaku tidak higienis sangat erat kaitannya dengan penyakit diare. Penelitian ini bertujuan untuk menganalisis hubungan antara kondisi lingkungan dan perilaku dengan penyakit diare di pulau Jawa dan Bali. Sumber data yang digunakan adalah data integrasi Susenas Maret dan Riskesdas 2018. Analisis dilakukan dengan menggunakan regresi logistik untuk melihat hubungan antara ketersediaan sanitasi dan air minum, perilaku buang air besar serta faktor lainnya terhadap kejadian diare. Hasil menunjukkan bahwa faktor perilaku buang air besar sembarangan (OR = 1,2; 95% CI: 1,12 - 1,29; P <0,001) serta akses sanitasi dan air minum rumah tangga tidak layak/tidak tersedia (OR = 1,11; 95% CI: 1,04 - 1,2; P = 0,003) memiliki hubungan dengan kejadian diare. Faktor lainnya yaitu: usia 0-5 tahun (OR = 1,56; 95% CI: 1,46 - 1,66; P <0,001) dan pendidikan rendah (OR = 1,33; 95% CI: 1,21 - 1,47; P <0,001).  Penelitian ini menunjukkan bahwa perilaku higienis sangat penting untuk menurunkan kejadian diare. Oleh karena itu direkomendasikan untuk mengutamakan aspek perilaku dan kesehatan lingkungan, yaitu merubah perilaku masyarakat untuk BAB di jamban, serta menyediakan sanitasi dan air minum yang layak. Kata kunci: Diare, sanitasi, sarana air minum, buang air besar sembarangan

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