北京和海口大气微量元素污染的比较分析:来源,运输和当地排放
Shuhan Liu1, Jing Liu1, Yuxiao Li1
1State Key Laboratory of Marine Resources Utilization in South China Sea, School of Marine Sciences, Hainan University, Haikou 570228, China.
Journal of hazardous materials
|January 21, 2026
概括
由于工业和运输排放,大气微量元素 (ATE) 在北京比海口更高. 这里是海口 (Haikou).
科学领域:
- 环境科学 环境科学
- 大气化学 大气化学
- 污染研究 污染研究
背景情况:
- 大气微量元素 (ATEs) 由于其毒性和持久性,构成重大环境和健康风险.
- 了解ATE的来源和空间分布对于有效的污染控制至关重要.
- 北京 (内陆) 和海口 (岛屿) 等城市为ATE污染分析提供了不同的地理背景.
研究的目的:
- 为了比较大气微量元素度和北京和海口之间的污染源.
- 确定这些对比的城市环境中ATEs污染的主要驱动因素.
- 为了阐明季节性变化和区域运输对中国北部和南部ATE的影响.
主要方法:
- 综合方法结合在线监测,受体建模和排放库存分析.
- 对北京和海口的ATEs度和来源分配进行比较分析.
- 评估季节性模式和来自当地,区域和跨境来源的贡献.
主要成果:
- 北京的ATEs总度高于海口,主要是由于当地工业/交通排放和中国北方的灰尘.
- 海口显示了 (V) 和 (Ni) 的独特升高,主要与航运排放 (> 50%) 有关.
- 季节性ATE峰值不同:北京在春秋,海口在秋冬,受区域交通 (海洋航运,南亚生物质燃烧) 的影响.
结论:
- 在中国内陆北部 (北京) 和岛屿南部 (海口) 之间存在不同的ATE污染模式和机制.
- 航运排放是沿海城市V和Ni污染的关键,经常被低估的来源.
- 综合方法改善了来源分配的可靠性,为特定区域的污染控制策略提供了信息.
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