Tartakovsky Dmitry, Kordova-Biezuner Levana, Broday David M
Shalhevet Information Systems Ltd, Rishon Lezion, Israel.
Air Quality and Asbestos Division, Israeli Air Monitoring Network, Israeli Ministry of Environmental Protection, Tel Aviv, Israel.
Environ Monit Assess. 2025 Jan 24;197(2):188. doi: 10.1007/s10661-025-13654-x.
This work examines the impact of the electrification of the Holon-Bat Yam passenger train line (central Israel) on air pollutant concentrations using data collected from air quality monitoring stations that operated at the train stations across the electrified train line. We present statistically significant reduction in the annual average NO, NO and NO concentrations (29-45%, 79-85% and 65-75%, respectively), attributed to the electrification of the passenger train line. The drop in the NO and NO concentrations was much stronger than in the NO concentrations, since NO is the main nitrogen species emitted by diesel locomotives. PM concentrations also significantly decreased, but only in two (out of the three) train stations situated along the electrified line. Following various analyses, we conclude that electrification of train lines reduces train locomotive emissions and improves the air quality at the stations, as expected, thus protecting the passengers and reducing their exposure to air pollutants. Although this study presents a specific case, the findings are expected to be applicable, at least quantitatively, to other locations, as railway electrification removes emissions associated with fossil-fuel-powered locomotives. This work supports railway electrification policy, which has the potential to substantially lower air pollution levels and diminish the passengers' exposure to harmful air pollutants.
本研究利用在以色列中部霍隆 - 巴特亚姆客运铁路线沿线各火车站运行的空气质量监测站收集的数据，考察了该铁路线电气化对空气污染物浓度的影响。我们发现，由于客运铁路线的电气化，年度平均一氧化氮（NO）、二氧化氮（NO₂）和氮氧化物（NOₓ）浓度出现了具有统计学意义的下降，降幅分别为29% - 45%、79% - 85%和65% - 75%。由于NO是柴油机车排放的主要氮类物质，NO和NO₂浓度的下降幅度远大于NOₓ浓度。颗粒物（PM）浓度也显著下降，但仅在电气化线路沿线的三个火车站中的两个出现了这种情况。经过各种分析，我们得出结论，正如预期的那样，铁路线电气化减少了火车机车的排放，改善了车站的空气质量，从而保护了乘客并减少了他们接触空气污染物的机会。尽管本研究呈现的是一个具体案例，但预计这些发现至少在定量方面适用于其他地区，因为铁路电气化消除了与化石燃料驱动机车相关的排放。这项工作支持铁路电气化政策，该政策有可能大幅降低空气污染水平，并减少乘客接触有害空气污染物的机会。
