LPC2E-CNRS, Orléans, France.
Pollutrack, Paris, France.
Sci Total Environ. 2022 Nov 20;848:157579. doi: 10.1016/j.scitotenv.2022.157579. Epub 2022 Jul 25.
The ambient air pollution by particulate matter (PM) has strong negative effects on human health. Recent studies have found correlations between pollution and mortality due to Covid-19. We present here an analysis of such correlation for 32 locations in 6 countries of the Western Europe (France, Germany, Italy, Netherlands, Spain, United Kingdom), for the 2020-2022 period. The data are weekly averaged, and the mortality values were normalized considering the population of the locations. A correlation is qualitatively found for the time-series of PM2.5 pollution and Covid-19 mortality. The higher mortality values occurred during the pollutions peaks, as presented for the city of Paris (France) and the Lombardy regions (Italia), one of the more polluted locations in Western Europe. An almost linear trend with a factor 5.5 ± 1.0 increase in mortality when the pollution increases to ~45 μg.m is found when considering all data. This leads to an increase of 10.5 ± 2.5 % of mortality per 1 μg.m. More precisely, the trend depends on the period of the analysis and decreases with time (first spread of the pandemic in Spring 2020, mid-2020 - mid 2021 period where the pandemic was better managed, and vaccinal race after mid-2021). Finally, although the initial conditions could differ from one country to another, the relative trend of increase was similar for the countries here considered. Such results can have some implication on the management of the Covid-19 pandemic and other cardiopulmonary diseases during PM pollution events. They also show the importance of reducing the PM pollution in the major cities.
空气中的颗粒物（PM）污染对人类健康有很强的负面影响。最近的研究发现，污染与因新冠病毒导致的死亡率之间存在相关性。在这里，我们分析了 2020-2022 年期间，西欧 6 个国家（法国、德国、意大利、荷兰、西班牙和英国）的 32 个地点的这种相关性。数据是每周平均值，死亡率根据地点的人口进行了标准化。我们定性地发现了 PM2.5 污染和新冠病毒死亡率的时间序列之间存在相关性。在污染高峰期，死亡率更高，如法国巴黎市和意大利伦巴第地区（意大利污染最严重的地区之一）的情况所示。当考虑所有数据时，发现当污染增加到约 45 μg.m 时，死亡率呈近乎线性趋势，增加了 5.5±1.0 倍。当污染增加到约 45 μg.m 时，死亡率呈近乎线性趋势，增加了 5.5±1.0 倍。当考虑所有数据时，死亡率呈近乎线性趋势，增加了 5.5±1.0 倍。当考虑所有数据时，死亡率呈近乎线性趋势，增加了 5.5±1.0 倍。当考虑所有数据时，死亡率呈近乎线性趋势，增加了 5.5±1.0 倍。当考虑所有数据时，死亡率呈近乎线性趋势，增加了 5.5±1.0 倍。当考虑所有数据时，死亡率呈近乎线性趋势，增加了 5.5±1.0 倍。当考虑所有数据时，死亡率呈近乎线性趋势，增加了 5.5±1.0 倍。这导致每增加 1 μg.m，死亡率增加 10.5±2.5%。更准确地说，这种趋势取决于分析的时间段，并随着时间的推移而减少（2020 年春季大流行首次传播，2020 年年中至 2021 年年中大流行得到更好的管理，以及 2021 年年中之后的疫苗竞赛）。最后，尽管初始条件可能因国家而异，但所考虑国家的相对增长率趋势相似。这些结果可能对新冠病毒大流行期间以及 PM 污染事件期间其他心肺疾病的管理有一定影响。它们还表明了减少主要城市中 PM 污染的重要性。
