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Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions
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城市下水道网络中缺少的甲排放量.

Jaewon Joo1, Sujong Jeong2, Jaewon Shin1

  • 1Environmental Planning Institute, Seoul National University, Seoul, Republic of Korea; Climate Tech Center, Seoul National University, Republic of Korea.

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概括

下水道网络排放大量的甲,甲是国家库存中没有的温室气体. 解决来自综合下水道的微生物排放问题可以帮助城市准确报告和减少它们对气候的影响.

关键词:
温室气体的温室气体是什么工人洞是一个人洞.甲排放量 甲排放量移动测量 移动测量下水道网络的下水道网络.

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科学领域:

  • 环境科学 环境科学
  • 大气化学 大气化学
  • 城市生态城市生态学

背景情况:

  • 下水道网络是人类温室气体 (GHG) 的重要来源.
  • 当前的国家温室气体库存往往不考虑下水道系统的甲 (CH4) 排放.
  • 了解这些排放对于准确的气候变化减缓战略至关重要.

研究的目的:

  • 量化城市地区下水道网络的甲排放量.
  • 调查下水道系统中甲排放的来源.
  • 为国家温室气体清单和城市气候政策提供信息.

主要方法:

  • 使用基于电动汽车的大气温室气体监测平台.
  • 在首尔 (Gwanak区) 的住宅和商业区收集了观测数据.
  • 分析了乙与甲的比率,以区分排放来源.

主要成果:

  • 来自首尔的下水道网络的量化显著甲排放量约为573t y−1.
  • 观察到低的乙与甲比率 (<0.005),表明微生物活动是主要来源.
  • 确定了综合下水道网络,人洞和雨沟作为主要排放通道.

结论:

  • 下水道甲排放是显著的,报告不足的温室气体来源.
  • 结合下水道系统中的微生物活动是这些排放的关键驱动因素.
  • 实施下水道网络处理可以减轻这些排放,并提高温室气体库存的准确性.