scholarly journals Is the default of 2 liters for daily per-capita water consumption appropriate? A nationwide survey reveals water intake in Japan

2018 ◽  
Vol 16 (4) ◽  
pp. 562-573 ◽  
Author(s):  
Koichi Ohno ◽  
Mari Asami ◽  
Yoshihiko Matsui
Keyword(s):  
Drinking Water ◽  
Water Intake ◽  
Japanese Population ◽  
Tap Water ◽  
Soft Drink ◽  
Nationwide Survey ◽  
Bottled Water ◽  
Risk Assessments ◽  
Intake Rate ◽  
Per Capita

Abstract Two liters per day is generally applied as the default drinking water intake rate for risk assessments, although evidence supporting this value is insufficient. This study aimed to reveal actual water intakes from tap water and other types of drinks, and to explore the relationships between these intakes. For this purpose, we conducted a nationwide Internet questionnaire survey. Tap water intake negatively correlated with bottled water and soft drink intakes, suggesting a mutually complementary relationship. We propose an index, potential Tap Water Intake (pTWI), calculated by adding soft drinks and bottled water to tap water intake. Mean per-capita tap water intake across the entire Japanese population was estimated at 1.28 L/d, whereas mean pTWI was estimated at 1.65 L/d. Two liters per day corresponds to the 88th percentile of tap water intake and to the 76th percentile of pTWI, and covers the intake of the majority of the population in Japan. This rate should continue being used as the default in the Japanese population, but the rate to cover the tap water intake of almost the entire population would be higher: it was >2.5 L/d.

scholarly journals Perceptions of drinking water safety and their associations with plain water intake among US Hispanic adults

2019 ◽  
Vol 17 (4) ◽  
pp. 587-596 ◽  
Author(s):  
Sohyun Park ◽  
Stephen Onufrak ◽  
Anisha Patel ◽  
Joseph R. Sharkey ◽  
Heidi M. Blanck
Keyword(s):  
Drinking Water ◽  
Water Intake ◽  
Multinomial Logistic Regression ◽  
Tap Water ◽  
Bottled Water ◽  
Plain Water ◽  
Water Safety ◽  
Drinking Water Safety ◽  
Hispanic Adults ◽  
Water Perceptions

Abstract We described sociodemographic differences in perceptions of drinking water safety and examined associations between perceptions and plain water intake. We used the 2015 Estilos survey of 1,000 US Hispanic adults conducted in both Spanish and English. Outcome was water intake. Exposures were the level of agreement about water perceptions (My tap water is safe to drink; Community tap water is safe to drink; Bottled water is safer; I would buy less bottled water if my tap water was safe). Covariates were sociodemographics, region, Hispanic heritage, and acculturation. We used chi-square tests and multinomial logistic regression to examine associations of water perceptions and intake. Overall, 24% of Hispanic adults consumed water ≤1 time/day. Although 34% disagreed their home tap water was safe to drink, and 41% disagreed their community tap water was safe to drink, 65% agreed bottled water is safer than tap water, and 69% agreed they would buy less bottled water if they knew their tap water was safe. Perceptions differed by some covariates but were not significantly associated with plain water intake. In conclusion, negative perceptions of tap water were common among US Hispanic adults, which can inform efforts to increase awareness about safe public water systems.

scholarly journals Impacts of temperature alteration on the drinking water quality stored in plastic bottles

2021 ◽  
Vol 11 (10) ◽  
Author(s):  
Abdelkader T. Ahmed ◽  
Mohammed Emad ◽  
Mohammed A. Bkary
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Tap Water ◽  
Research Work ◽  
Bottled Water ◽  
Physiochemical Parameters ◽  
Heating Water ◽  
Long Time ◽  
The Impact ◽  
Concentration Levels

AbstractMany people prefer to drink bottled water instead off the tap water. The bottled water is stored in the plastic bottles sometimes for long time. These plastic bottles might leach out some harmful materials into the water especially when exposed to temperature alteration, which may affect human health. This research work focused on investigating the effect of changing temperature on the bottled water quality. The work studied the effect of heating water in plastic bottles by sun, oven, and microwave. The study included also the impact of cooling and freezing the bottled waters. Results showed that temperature alterations caused changes in some physicochemical properties of bottled waters such as decreasing the values of pH and TDS and increasing levels of fluoride and chloride. In addition, the concentration levels of some physiochemical parameters exceeded the permissible values for drinking water. With temperature alterations, all levels of heavy metals in bottled waters were minimal except some small concentrations of copper and zinc. Results confirmed also differences in behavior between the bottled water brands exposed to the same temperature alterations. Heating bottled waters above 50 °C is alarming problem on the water quality. This is because above this degree, many alternations were observed in the water content. The outcomes of this work are useful for improving the current legislation on bottled waters and their storage.

Survey of Bottled Drinking Water Sold in Canada. Part 1. Lead, Cadmium, Arsenic, Aluminum, and Fluoride

1992 ◽  
Vol 75 (6) ◽  
pp. 949-953 ◽  
Author(s):  
Robert W Dabeka ◽  
Henry B S Conacher ◽  
John Salminen ◽  
Gerald R Nixon ◽  
Gunther Riedel ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Tap Water ◽  
Bottled Water ◽  
Mineral Waters ◽  
Mineral Spring ◽  
Bottled Drinking Water ◽  
Drug Regulations ◽  
Tap Water Quality

Abstract Samples of bottled water (n = 172) offered for sale in Canada were analyzed for lead, cadmium, arsenic, aluminum, and fluoride: means and ranges (μg/g) found were, respectively, 0.0026 (<0.0010- 0.074), 0.00018 (<0.0001-0.0004), 0.0030 (<0.001- 0.048), 0.027 (<0.010-0.568), and 0.543 (<0.050- 5.85). Comparison of levels among mineral waters (n = 64), spring waters (n = 77), and miscellaneous waters (n = 31) indicated appreciable differences only in the case of fluoride. For fluoride, the means and medians (μg/g) for mineral, spring, and miscellaneous waters were 1.179 and 0.455, 0.152 and 0.090, and 0.201 and <0.050, respectively. No samples were found in violation of the tolerances in the Canadian Food and Drug Regulations; however, 1 sample (in a lead-soldered can) contained lead and 15 samples contained fluoride at levels above the limits recommended by the Guidelines for Canadian Drinking Water (tap-water) Quality.

scholarly journals Who is Replacing Sugar-Sweetened Beverages with Plain Water? Analyses of NHANES 2011–16 Data

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 557-557
Author(s):  
Colin Rehm ◽  
Matthieu Maillot ◽  
Florent Vieux ◽  
Pamela Barrios ◽  
Adam Drewnowski
Keyword(s):  
Drinking Water ◽  
Family Income ◽  
Tap Water ◽  
The United States ◽  
Bottled Water ◽  
Plain Water ◽  
Lower Income ◽  
Sugar Sweetened Beverages ◽  
Sweetened Beverages ◽  
Hispanic White

Abstract Objectives In the United States, replacing sugar-sweetened beverages (SSB) with plain drinking water is recommended via by numerous public health agencies and non-governmental organizations. While declines in SSB consumption in the US are well-documented, it is not clear if consumers are replacing SSBs with other beverages, namely plain drinking water. Methods Beverage consumption data for 7453 children (4–18y) and 15,263 adults (≥19y) came from two 24 h dietary recalls in three most recent cycles of the National Health and Nutrition Examination Survey (NHANES 2011–2016). Consumption trends for water intakes (in mL/d) from SSBs and from drinking water were analyzed by gender, age group, family income, and race/ethnicity. Results Mean water intakes from SSBs declined from 322 mL/d to 262 mL/d (p-trend = 0.002) on average, whereas plain drinking water increased from 1011 mL/d to 1144 mL/d (p-trend = 0.0108). Statistically significant reductions in SSBs were observed only among men (-18%), younger participants (-26% in 4–8, -22% in 9–13, -33% in 14–19 and -30% in 20–30), those with lower incomes (family income-to-poverty ratio < 2.0), non-Hispanic whites and non-Hispanic black participants (p-trend < 0.05 for each). Within these population sub-groups, only non-Hispanic white participants, those with a family income to poverty ratio of 1–1.99, but not < 1.0, and children aged < 14y had a corresponding increase in plain water consumption. When examining types of water, non-Hispanic white participants replaced SSBs with tap water as opposed to bottled water, and the lower income group replaced SSBs with bottled water, as opposed to tap water. Conclusions The expected replacement of SSBs with plain drinking water was not uniformly observed across socio-demographic group. Only non-Hispanic Whites and lower income groups replaced SSB with water, whereas teenagers (14–19y) and non-Hispanic black participants did not. Understanding how and if specific population sub-groups are replacing a declining food/beverage category with another category has important population health implications. Funding Sources Analyses of publicly available federal NHANES databases were sponsored by PepsiCo Inc. and conducted by MS-Nutrition. The views expressed in this abstract are those of the authors and do not necessarily reflect the position or policy of PepsiCo, Inc.

scholarly journals Change in methodology for collection of drinking water intake in What We Eat in America/National Health and Nutrition Examination Survey: implications for analysis

2012 ◽  
Vol 15 (7) ◽  
pp. 1190-1195 ◽  
Author(s):  
Rhonda S Sebastian ◽  
Cecilia Wilkinson Enns ◽  
Joseph D Goldman ◽  
Alanna J Moshfegh
Keyword(s):  
Drinking Water ◽  
Water Intake ◽  
National Health ◽  
Tap Water ◽  
Lower Percentage ◽  
Nutrition Examination Survey ◽  
Cross Sectional ◽  
Health And Nutrition ◽  
The Usa ◽  
Gender Groups

AbstractObjectiveTo provide updated estimates of drinking water intake (total, tap, plain bottled) for groups aged ≥1 year in the USA and to determine whether intakes collected in 2005–2006 using the Automated Multiple-Pass Method for the 24 h recall differ from intakes collected in 2003–2004 via post-recall food-frequency type questions.DesignCross-sectional, observational study.SettingWhat We Eat in America (WWEIA), the dietary intake component of the US National Health and Nutrition Examination Survey (NHANES).SubjectsIndividuals aged ≥1 year in 2003–2004 (n 8249) and 2005–2006 (n 8437) with one complete 24 h recall.ResultsThe estimate for the percentage of individuals who reported total drinking water in 2005–2006 was significantly (P < 0·0000) smaller (76·9 %) than that for 2003–2004 (87·1 %), attributable to a lower percentage reporting tap water (54·1 % in 2005–2006 v. 67·0 % in 2003–2004; P = 0·0001). Estimates of mean tap water intake differed between the survey cycles for men aged ≥71 years.ConclusionsSurvey variables must be examined before combining or comparing data from multiple WWEIA/NHANES release cycles. For at least some age/gender groups, drinking water intake data from NHANES cycles prior to 2005–2006 should not be considered comparable to more recent data.

scholarly journals Drinking water consumption patterns in Canadian communities (2001–2007)

2011 ◽  
Vol 10 (1) ◽  
pp. 69-86 ◽  
Author(s):  
S. M. Roche ◽  
A. Q. Jones ◽  
S. E. Majowicz ◽  
S. A. McEwen ◽  
K. D. M. Pintar
Keyword(s):  
Drinking Water ◽  
Water Consumption ◽  
Tap Water ◽  
Treatment Method ◽  
Pooled Analysis ◽  
Bottled Water ◽  
Consumption Patterns ◽  
Cross Sectional ◽  
Factors Associated ◽  
Water Users

A pooled analysis of seven cross-sectional studies from Newfoundland and Labrador, Waterloo and Hamilton Regions, Ontario and Vancouver, East Kootenay and Northern Interior Regions, British Columbia (2001 to 2007) was performed to investigate the drinking water consumption patterns of Canadians and to identify factors associated with the volume of tap water consumed. The mean volume of tap water consumed was 1.2 L/day, with a large range (0.03 to 9.0 L/day). In-home water treatment and interactions between age and gender and age and bottled water use were significantly associated with the volume of tap water consumed in multivariable analyses. Approximately 25% (2,221/8,916) of participants were classified as bottled water users, meaning that 75% or more of their total daily drinking water intake was bottled. Approximately 48.6% (4,307/8,799) of participants used an in-home treatment method to treat their tap water for drinking purposes. This study provides a broader geographic perspective and more current estimates of Canadian water consumption patterns than previous studies. The identified factors associated with daily water consumption could be beneficial for risk assessors to identify individuals who may be at greater risk of waterborne illness.

scholarly journals The relationship of perceptions of tap water safety with intake of sugar-sweetened beverages and plain water among US adults

2012 ◽  
Vol 17 (1) ◽  
pp. 179-185 ◽  
Author(s):  
Stephen J Onufrak ◽  
Sohyun Park ◽  
Joseph R Sharkey ◽  
Bettylou Sherry
Keyword(s):  
Water Intake ◽  
Tap Water ◽  
Bottled Water ◽  
Plain Water ◽  
Water Safety ◽  
Sugar Sweetened Beverages ◽  
Sweetened Beverages ◽  
Race Ethnicity ◽  
Racial Ethnic ◽  
Water Perceptions

AbstractObjectiveResearch is limited on whether mistrust of tap water discourages plain water intake and leads to a greater intake of sugar-sweetened beverages (SSB). The objective of the present study was to examine demographic differences in perceptions of tap water safety and determine if these perceptions are associated with intake of SSB and plain water.DesignThe study examined perceptions of tap water safety and their cross-sectional association with intake of SSB and plain water. Racial/ethnic differences in the associations of tap water perceptions with SSB and plain water intake were also examined.SettingNationally weighted data from the 2010 HealthStyles Survey (n 4184).SubjectsUS adults aged ≥18 years.ResultsOverall, 13·0 % of participants disagreed that their local tap water was safe to drink and 26·4 % of participants agreed that bottled water was safer than tap water. Both mistrust of tap water safety and favouring bottled water differed by region, age, race/ethnicity, income and education. The associations of tap water mistrust with intake of SSB and plain water were modified by race/ethnicity (P < 0·05). Non-white racial/ethnic groups who disagreed that their local tap water was safe to drink were more likely to report low intake of plain water. The odds of consuming ≥1 SSB/d among Hispanics who mistrusted their local tap water was twice that of Hispanics who did not (OR = 2·0; 95 % CI 1·2, 3·3).ConclusionsPublic health efforts to promote healthy beverages should recognize the potential impact of tap water perceptions on water and SSB intake among minority populations.

scholarly journals The health-related microbiological quality of bottled drinking water sold in Dar es Salaam, Tanzania

2006 ◽  
Vol 5 (1) ◽  
pp. 179-185 ◽  
Author(s):  
Gabriel R. Kassenga
Keyword(s):  
Drinking Water ◽  
Heterotrophic Bacteria ◽  
Tap Water ◽  
Microbiological Quality ◽  
Total Coliform ◽  
Dar Es Salaam ◽  
Bottled Water ◽  
Faecal Coliform ◽  
Coliform Bacteria

The consumption of bottled and plastic-bagged drinking water in Tanzania has increased largely because of the deteriorating quality of tap water. It is uncertain whether these water products are safe for drinking. In this study, the microbiological quality of bottled and plastic-bagged drinking water sold in Dar es Salaam, Tanzania, was investigated. One hundred and thirty samples representing 13 brands of bottled water collected from shops, supermarkets and street vendors were analysed for total coliform and faecal coliform organisms as well as heterotrophic bacteria. These were compared with 61 samples of tap water. Heterotrophic bacteria were detected in 92% of the bottled water samples analysed. Total and faecal coliform bacteria were present in 4.6% and 3.6%, respectively, of samples analysed with a tendency for higher contamination rates in plastic-bagged drinking water. Microbiological quality of tap water was found to be worse compared with bottled water, with 49.2% and 26.2% of sampling points showing the presence of total coliform and faecal coliform organisms, respectively. The results suggest caution and vigilance to avert outbreaks of waterborne diseases from these types of drinking water.

scholarly journals Tendencies towards bottled drinking water consumption: Challenges ahead of polyethylene terephthalate (PET) waste management

2021 ◽  
Vol 11 (1) ◽  
pp. 60-68
Author(s):  
Hassan Aslani ◽  
Parisa Pashmtab ◽  
Abdolreza Shaghaghi ◽  
Asghar Mohammadpoorasl ◽  
Hassan Taghipour ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Consumption ◽  
Tap Water ◽  
Bottled Water ◽  
Water Usage ◽  
Pet Waste ◽  
Bottled Drinking Water ◽  
Time Period ◽  
Waste Generation Rate ◽  
Tap Water Quality

Background: The main objective of this study was to investigate the logics behind tendencies towards bottled drinking water usage in spite of availability of treated tap water. The amount of waste bottle is also estimated in Iran and managing principles for resolving the issue presented. Methods: A questionnaire was used to survey the logics behind tendencies toward bottled drinking water consumption among 120 participants. In order to estimate the quantities of the PET wastes produced in the country, data about bottled water production rate as well as volume of the imported and exported drinking bottled water were collected from 1962 to 2015 and applied in the calculations. Results: Findings suggested that about 0.026 to 3.86 billion liters (about 1.04 billion literson average) of bottled water was consumed annually between 2000 and 2015. Furthermore, bottled water consumption increased from 0.41 to 48.9 L/capita-year within the same time period. In the meantime, the plastic bottle waste generation rate rose from 12.84 to 1519.38 g/capita-year. There is no efficient and suitable system for managing and recycling waste bottles in the country. The perceived unreliability of tap water quality was the main reason of bottled water consumption among 74% of the respondents. Conclusion: To reduce bottled water consumption and the associated harmful environmental and health consequences, measures such as informing people, validating public water supply quality, preventive rules enactment, and establishing extended producer responsibility (EPR) are highly recommended.

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