聚和棉花织废弃物开放焚烧对环境的影响:比较分析
Jeyran Bayramova1, Steven Pires1, Patricia A Holden2
1Cotton Incorporated, Sustainability, 6399 Weston Parkway, Cary, NC, 27513, USA.
概括
在全球范围内,织废物开放焚烧会释放大量温室气体和危险污染物. 改进数据和废物管理对于减轻这些环境和公共卫生影响至关重要.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 废物管理 废物管理
背景情况:
- 开放式焚烧废物 (OBW),特别是织品,是一个重要的全球环境和公共卫生问题.
- 由于废物基础设施不足,在低收入和中等收入国家普遍存在.
- 聚和棉花是常见的织废弃物成分,具有明显的燃烧影响.
研究的目的:
- 量化织废物开放焚烧 (OBTW) 的规模和影响.
- 分析聚和棉花燃烧产生的温室气体 (GHG) 和危险污染物排放.
- 识别影响排放清单准确性的数据不确定性.
主要方法:
- 估计了137个国家的年度OBTW数量.
- 来自聚燃烧的二氧化碳 (CO2) 排放的计算.
- 对来自棉花的危险污染物 (PM,PAH,THM) 和二氧化碳排放的分析.
主要成果:
- 据估计,每年有10-20万的织废物被焚烧,聚为8.3-24.6万的CO2贡献.
- 南亚占地区排放量的37%.
- OBTW释放危险的污染物影响弱势群体;棉花燃烧可以产生高水平的CO.
结论:
- 由于数据缺口,当前的排放库存可能低估了OBTW影响.
- 迫切需要改进织废物数据和纤维特异性排放因子.
- 制定废物管理策略对于减少OBTW的环境和健康负担至关重要.
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