What Types of Consumer Behaviors Produce the Most Household Food Waste? (original) (raw)

2018, Journal of the Japan Society of Material Cycles and Waste Management

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Daily Dietary Lead Exposure Estimated Based on Market Basket Survey

Kankyō kagaku, 2017

Summar y Daily dietary exposure level of lead was estimated by market basket survey and low-contamination lead analysis. We collected 151 food samples of 17 food categories at supermarkets in Shizuoka city, Japan, and prepared 17 composites by mixing the food items in each of the categories after pretreatment and cooking. The composite was digested with ultrapure acid in a clean room and lead concentration was measured by ICP mass spectrometry. Lead was detected in all of the composites at the concentration of 0.21 to 124 ng/g fresh weight. Daily dietary exposure level of lead in Tokai district was calculated by multiplying lead concentration with daily intake of each of the 17 food composites, and by summing them all to find 4.69 μg/day. The obtained value is considered reliable because lead was detected in all of the composites: inclusion of "undetectable" composites generally results in uncertainty in daily exposure estimation based on market basket survey. "Algae" composite contributed most to the total daily exposure (28.8 %), which was followed by "Beverage" (13.8 %) and "Vegetable" (12.2 %) in this order. The present result will be valuable in the assessment and management of risk due to lead exposure in Japan.

Eating alone among community-dwelling Japanese elderly: association with depression and food diversity

The journal of nutrition, health & aging, 2012

Eating alone is an emerging social concern these days along with the background of serious aging population growth and increasing number of single-dwellers in Japan. However, little study is focused eating alone and its relation to the health status of community-dwelling elderly. To clarify the relations between eating alone and geriatric functions such as depression, quantitative subjective quality of life (QOL), activities of daily living (ADL) and dietary status of community-dwelling Japanese elderly. A cross-sectional study. Tosa town, one of the "super-aged" towns in Japan. The study population consisted of 856 community-dwelling elderly aged ≥65 living in Tosa town. Eating alone and living arrangement was defined by the questionnaire. Geriatric functions were assessed by measuring activities of daily living (ADL), depressive symptom using 15-item geriatric depression scale (GDS-15), and quality of life (QOL). Food diversity was investigated as a measure of dietary qu...

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