Thiel Cassandra L, Park SiWoon, Musicus Aviva A, Agins Jenna, Gan Jocelyn, Held Jeffrey, Horrocks Amy, Bragg Marie A
Department of Population Health, NYU Grossman School of Medicine, New York City, New York, United States of America.
Department of Civil and Urban Engineering, NYU Tandon School of Engineering, New York City, New York, United States of America.
PLoS One. 2021 Mar 17;16(3):e0247616. doi: 10.1371/journal.pone.0247616. eCollection 2021.
This study measured the total quantity and composition of waste generated in a large, New York City (NYC) hospital kitchen over a one-day period to assess the impact of potential waste diversion strategies in potential weight of waste diverted from landfill and reduction in greenhouse gas (GHG) emissions. During the one-day audit, the hospital kitchen generated 1515.15 kg (1.7 US tons) of solid waste daily or 0.23 kg of total waste per meal served. Extrapolating to all meals served in 2019, the hospital kitchen generates over 442,067 kg (487 US tons) of waste and emits approximately 294,466 kg of CO2e annually from waste disposal. Most of this waste (85%, 376,247 kg or 415 US tons annually) is currently sent to landfill. With feasible changes, including increased recycling and moderate composting, this hospital could reduce landfilled waste by 205,245 kg (226 US tons, or 55% reduction) and reduce GHG emissions by 189,025 kg CO2e (64% reduction). Given NYC's ambitious waste and GHG emission reduction targets outlined in its OneNYC strategic plan, studies analyzing composition, emissions, and waste diversion potential of large institutions can be valuable in achieving city sustainability goals.
本研究测量了纽约市一家大型医院厨房在一天内产生的垃圾总量和成分，以评估潜在的垃圾转移策略对从垃圾填埋场转移的垃圾重量和温室气体（GHG）排放减少的影响。在为期一天的审计期间，医院厨房每天产生1515.15千克（1.7美吨）固体废物，即每餐产生0.23千克总垃圾。推断2019年提供的所有餐食，医院厨房产生超过442,067千克（487美吨）垃圾，每年因垃圾处理排放约294,466千克二氧化碳当量。目前，这些垃圾中的大部分（85%，即每年376,247千克或415美吨）被送往垃圾填埋场。通过可行的改变，包括增加回收利用和适度堆肥，这家医院可以减少205,245千克（226美吨，减少55%）的填埋垃圾，并减少189,025千克二氧化碳当量的温室气体排放（减少64%）。鉴于纽约市在其“一个纽约”战略计划中概述的雄心勃勃的垃圾和温室气体减排目标，分析大型机构的垃圾成分、排放和垃圾转移潜力的研究对于实现城市可持续发展目标可能具有重要价值。
