意大利的PM10化学特征全国数据集. 城市空气污染的地理影响和来源分配
Adriana Pietrodangelo1, Maria Chiara Bove2, Alice Corina Forello3
1C.N.R. Institute of Atmospheric Pollution Research, Monterotondo St., Rome 00015, Italy.
The Science of the total environment
|October 18, 2023
概括
意大利的城市地理影响PM10的化学成分. 这项研究表明,尽管区域差异很大,但相似的地形产生了可比的PM10档案,为空气质量管理提供了洞察力.
科学领域:
- 环境科学 环境科学
- 大气化学 大气化学
- 城市气候学 城市气候学
背景情况:
- 城市结构在很大程度上受到当地地理的塑造,这导致不同地区的城市之间空气质量特征的相似性,但具有可比较的地形区域.
- 现有的研究往往侧重于个别城市,缺乏国家范围的观点,以了解地理如何影响城市空气污染成分.
研究的目的:
- 调查不同地形是否显著改变意大利城市地区的PM10化学成分,这些城市拥有相似的地理特征,但位于不同地区.
- 利用现有的空气污染监测数据,开发和验证一种新的方法方法,用于在国家范围内分析PM10的化学成分.
主要方法:
- 编制了一个独特的数据集,用于从2005年至2016年为21个意大利城市网站的季节平均PM10质量度和化学成分数据.
- 应用统计分析,缺失数据估计,潜伏集群识别和正矩阵因数分解 (PMF) 来进行源分配建模.
- 使用各种测试评估PMF模型的物理一致性和性能.
主要成果:
- 证明成功地利用非典型的时间分辨率数据集作为PMF的输入,产生PM10的全国代表性化学配置文件.
- 开发的化学配置文件在物理上是一致的,并通过严格的建模性能测试来评估.
- 该数据集作为意大利季节性PM10化学物种平均值的参考存储库.
结论:
- 提出的方法方法对于分析国家级PM10化学成分,即使使用非标准数据分辨率,也是非常强大的.
- 针对意大利城市聚合区的PM10化学概况可以为排放清单提供有价值的数据.
- 该方法可适应用于空气污染监测网络中常见的数据集,从而促进更广泛的应用.
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