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Quantification of Food Waste Disposal in the United States: A Meta-Analysis

机译：美国食物垃圾处理的量化：荟萃分析

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摘要

Food waste has major consequences for social, nutritional, economic, and environmental issues, and yet the amount of food waste disposed in the U.S. has not been accurately quantified. We introduce the transparent and repeatable methods of meta-analysis and systematic reviewing to determine how much food is discarded in the U.S., and to determine if specific factors drive increased disposal. The aggregate proportion of food waste in U.S. municipal solid waste from 1995 to 2013 was found to be 0.147 (95% CI 0.137-0.157) of total disposed waste, which is lower than that estimated by U.S. Environmental Protection Agency for the same period (0.176). The proportion of food waste increased significantly with time, with the western U.S. region having consistently and significantly higher proportions of food waste than other regions. There were no significant differences in food waste between rural and urban samples, or between commercial/institutional and residential samples. The aggregate disposal rate for food waste was 0.615 pounds (0.279 kg) (95% CI 0.565-0.664) of food waste disposed per person per day, which equates to over 35.5 million tons (32.2 million tonnes) of food waste disposed annually in the U.S.
机译：餐厨垃圾对社会，营养，经济和环境问题具有重大影响，但尚未准确量化在美国处置的餐厨垃圾的数量。我们介绍了透明且可重复的荟萃分析和系统的审查方法，以确定在美国丢弃了多少食物，并确定是否有特定因素促使处置量增加。发现1995年至2013年间，美国城市固体废物中食物垃圾的总比例为处置废物总量的0.147（95％CI 0.137-0.157），低于美国环境保护署同期的估计值（0.176） ）。随着时间的推移，食物垃圾的比例显着增加，美国西部地区的食物垃圾比例一直比其他地区高得多。农村和城市样本之间，商业/机构和住宅样本之间的食物浪费没有显着差异。食物垃圾的总处置率为每人每天处置的食物垃圾0.615磅（0.279千克）（95％CI 0.565-0.664），相当于每年在该地区处置的食物垃圾超过3550万吨（3220万吨）。我们

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  • 来源
    《Environmental Science & Technology》 |2015年第24期|13946-13953|共8页
  • 作者

    Krista L. Thyberg; David J. Tonjes; Jessica Gurevitch;

  • 作者单位

    Department of Technology and Society, Stony Brook University, Stony Brook, New York 11794-3760, United States;

    Department of Technology and Society, Stony Brook University, Stony Brook, New York 11794-3760, United States;

    Department of Ecology and Evolution, Stony Brook University, Stony Brook, New York 11794-4245, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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