Modelled air pollution levels in the UK from 2003 to 2019

IF 3.7 2区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Atmospheric Environment Pub Date : 2025-09-26 DOI:10.1016/j.atmosenv.2025.121572

Eleanor R. Smith, Lucy S. Neal, Paul Agnew

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引用次数: 0

Abstract

Air pollution levels in the UK have been modelled for the period 2003 to 2019, generating a consistent record at hourly time resolution for the whole period. The modelling system employed, ‘AQREAN’, comprises a well-validated air quality forecast model together with a bias correction post-processing system. This combines model values with pollutant observations to give an improved estimate (termed a ‘reanalysis’) of hourly average pollution levels for the whole UK on a 0.1° grid. The system is described, together with key model input datasets and the verification procedure used to quality assure the dataset. As part of this verification, statistics summarising the level of uncertainty in the data are presented. The final dataset is described in detail. In addition to the concentrations of the air quality pollutants (PM_2.5, PM₁₀, O₃, NO₂ and SO₂) it includes many additional chemical and physical quantities, plus key meteorological parameters. An initial analysis of the dataset is presented, describing long-term trends in air pollution, along with the frequency and intensity of poor air quality episodes. Ozone and particulate matter are the key drivers of regional air pollution episodes in the UK, with ozone-driven events more frequent during spring and summer and particulate matter-driven events more frequent during late winter and springtime. Pollution episodes are more common in the south and southeast of England, as well as in and around large urban areas of the UK.

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模拟了2003年至2019年英国的空气污染水平

英国的空气污染水平在2003年至2019年期间进行了建模，得出了整个时期每小时分辨率的一致记录。所采用的建模系统“AQREAN”包括一个经过充分验证的空气质素预测模型，以及一个偏差校正后处理系统。该方法将模型值与污染物观测值结合起来，在0.1°网格上对整个英国的每小时平均污染水平进行了改进的估计（称为“再分析”）。描述了该系统，并给出了关键模型输入数据集和用于保证数据集质量的验证程序。作为验证的一部分，提供了总结数据不确定程度的统计数据。详细描述了最终的数据集。除了空气质量污染物（PM2.5、PM10、O3、NO2和SO2）的浓度外，它还包括许多额外的化学和物理量，以及关键的气象参数。对数据集进行了初步分析，描述了空气污染的长期趋势，以及空气质量差事件的频率和强度。臭氧和颗粒物是英国区域空气污染事件的关键驱动因素，臭氧驱动事件在春季和夏季更频繁，颗粒物驱动事件在冬末和春季更频繁。污染事件在英格兰南部和东南部以及英国大城市及其周边地区更为常见。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Atmospheric Environment 环境科学-环境科学

CiteScore

9.40

自引率

8.00%

发文量

458

审稿时长

53 days

期刊介绍： Atmospheric Environment has an open access mirror journal Atmospheric Environment: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Atmospheric Environment is the international journal for scientists in different disciplines related to atmospheric composition and its impacts. The journal publishes scientific articles with atmospheric relevance of emissions and depositions of gaseous and particulate compounds, chemical processes and physical effects in the atmosphere, as well as impacts of the changing atmospheric composition on human health, air quality, climate change, and ecosystems.