对道路运输和建筑加热的净零行动对英国空气污染的暴露有什么影响?
Nosha Assareh1,2, Andrew Beddows1,2, Gregor Stewart1,2
1Environmental Research Group, School of Public Health, Imperial College London, Sir Michael Uren Biomedical Engineering Hub, White City Campus, 80 Wood Lane, London W12 0BZ, United Kingdom.
Environmental science & technology
|January 10, 2025
概括
英国的净零气候政策为空气污染带来了显著的共同利益. 通过平衡净零 (BNZP) 和广泛创新 (WI) 等途径实现净零 (NZ),可以大幅减少二氧化 (NO2),颗粒物 (PM) 和臭氧 (O3).
科学领域:
- 环境科学 环境科学
- 气候政策分析 气候政策分析
- 大气化学 大气化学
背景情况:
- 由二氧化 (NO2),臭氧 (O3) 和颗粒物 (PM) 造成的空气污染对环境和健康构成重大风险.
- 英国旨在通过各种气候政策实现净零 (NZ) 排放.
- 了解气候减缓战略对空气质量的共同好处对于综合政策制定至关重要.
研究的目的:
- 调查两个英国净零 (NZ) 场景的空气污染副效益:平衡的净零路径 (BNZP) 和广泛的创新 (WI).
- 在不同的新西兰情景下,与通常情况 (BAU) 轨迹相比,量化二氧化 (NO2),臭氧 (O3) 和颗粒物 (PM) 的减少.
- 评估电动汽车 (EV) 普及和低碳加热对空气质量改善的影响.
主要方法:
- 利用化学运输模型 (CTM) 在不同的排放场景下模拟空气质量.
- 分析了来自英国气候变化委员会第六次碳预算的两个特定的新西兰路径 (BNZP和WI).
- 对比了2030年和2040年的空气污染物预计度与业务通常 (BAU) 基线.
主要成果:
- 根据BAU,预计到2030年将减少NO2和PM,但到2040年将稳定.
- 根据BNZP和WI的情景,预计到2040年,由于加速采用电动汽车和低碳供暖,将大幅减少NO2和PM.
- 建筑业对减少PM的贡献是公路运输的2-3倍;电动汽车的过渡减少了交通排放和运输量.
- 臭氧 (O3) 趋势显示,到2030年将略有增加,然后到2040年将略有下降.
结论:
- 净零 (NZ) 气候政策,特别是BNZP和WI,在英国产生了显著的空气污染副效益.
- 加速向电动汽车 (EV) 的过渡和低碳供暖是减少NO2和PM的关键驱动因素.
- 政策制定者可以利用新西兰的战略,同时应对气候变化和改善空气质量,到2050年可能有进一步的好处.
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