在西班牙臭氧减轻计划的框架内评估臭氧减轻场景
Hervé Petetin1, Marc Guevara1, Roger Garatachea1
1Barcelona Supercomputing Center (BSC).
The Science of the total environment
|July 10, 2023
概括
西班牙的空气质量计划旨在减少热层臭氧 (O3) 污染. 建模显示,计划的排放量将O3减少4μg/m3,但超标将持续存在,突出道路和海运作为关键行业.
科学领域:
- 环境科学 环境科学
- 大气化学 大气化学
- 空气质量建模空气质量模型
背景情况:
- 热带层臭氧 (O3) 是一个重要的空气污染物,影响健康,植被和气候,特别是在地中海地区,如西班牙.
- 西班牙正在制定一个O3缓解计划来解决这个问题,需要强有力的科学支持.
研究的目的:
- 进行排放和空气质量建模,以支持西班牙的O3减排计划.
- 评估不同排放场景对西班牙O3污染水平的影响.
主要方法:
- 开发多种排放场景:一个基准案例,2030年的计划排放 (PE) 场景,以及针对道路运输和海运等部门的具体场景.
- 使用MONARCH和WRF-CMAQ空气质量模型在这些场景下模拟2019年7月的O3度.
- 对每天8小时最大O3度和超出监管值的影响分析.
主要成果:
- 预计计划中的排放场景将每天平均8小时最大O3度降低约4μg/m3.
- 预计O3超值的显著降低:在120μg/m3目标下降37%,在180μg/m3信息值下降77%.
- 道路运输和海上交通被确定为影响全国和地中海沿岸O3水平的关键排放来源.
结论:
- 计划的减排量很大,但不足以消除西班牙所有O3超标.
- 针对公路运输和海运的排放提供了最大的O3减排潜力.
- 为了实现热层臭氧的空气质量目标,需要进一步制定有针对性的排放控制战略.
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