[2006年至2020年广东省大气甲排放的演变特征]
Gui-Ying Ming1, Man-Ni Zhu1, Qing-E Sha1,2
1Institute for Environment and Climate Research, Jinan University, Guangzhou 511443, China.
Huan jing ke xue= Huanjing kexue
|September 12, 2023
概括
广东省的甲排放量呈现轻微下降趋势,其中生物质燃烧的来源减少. 溶剂的使用现在是主要的甲排放者,主要来自塑料制品和青铺路.
科学领域:
- 大气化学 大气化学
- 环境科学 环境科学
- 污染控制 污染控制
背景情况:
- 甲是臭氧和PM2.5的关键前体,影响空气质量和人类健康.
- 了解甲排放源对于制定有效的污染控制策略至关重要.
研究的目的:
- 在广东省从2006年到2020年建立甲排放库存.
- 确定主要的甲排放源并分析它们的空间和时间演变.
主要方法:
- 使用的排放因子和源资料方法用于库存创建.
- 分析了甲排放的空间和时间趋势.
主要成果:
- 广东的甲排放量在39000-56000之间波动,下降趋势较弱.
- 生物质燃烧的贡献从58% (2006) 下降到27% (2020).
- 溶剂的使用,特别是从塑料制品和青铺路中,成为主要来源 (2020年为28%).
结论:
- 有效的控制措施减少了生物质燃烧排放.
- 珍珠河三角洲的工业和移动资源,以及广东西部的生物质需要进一步的缓解努力.
- 空间排放热点与不同地区的主导来源有关 (PRD中的溶剂/移动,非PRD中的生物质).
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