Abstract：
Air pollution is affected by the atmospheric dynamics. This study aims to determine that air pollution concentration values in İstanbul increased significantly and reached peak values due to atmospheric blocking between the 30th of December 2022 and the 5th of January 2023. In this study, hourly pollutant data was obtained from 16 air quality monitoring stations (AQMS), the exact reanalysis data was extracted from ERA5 database, and inversion levels and meteorological and synoptic analyses were used to determine the effects of atmospheric blocking on air pollution. Also, cloud base heights and vertical visibility measurements were taken with a ceilometer. Statistical calculations and data visualizations were performed using the R and Grads program. Omega-type blocking, which started in İstanbul on December 30, 2022, had a significant impact on the 1st and 2nd of January 2023, and PM10 and PM2.5 concentration values reached their peak values at 572.8 and 254.20 µg/m3, respectively. In addition, it was found that the average concentration values in the examined period in almost all stations were higher than the averages for January and February. As a result, air quality in İstanbul was determined as \"poor\" between these calendar dates. It was found that the blocking did not affect the ozone (µg/m3) concentration. It was also found that the concentrations of particulate matter (PM) 10 µm or less in diameter (PM10) and PM 2.5 µm or less in diameter (PM2.5) were increased by the blocking effect in the İstanbul area. Finally, according to the data obtained using the ceilometer, cloud base heights decreased to 30 m and vertical visibility to 10 m.
摘要：
空气污染受到大气动力学的影响。这项研究旨在确定伊斯坦布尔的空气污染浓度值显着增加，并由于2022年12月30日至2023年1月5日之间的大气阻塞而达到峰值。在这项研究中,每小时污染物数据来自16个空气质量监测站(AQMS)，准确的重新分析数据是从ERA5数据库中提取的，和反转水平以及气象和天气分析用于确定大气阻塞对空气污染的影响。此外，云基高度和垂直能见度测量是用测高仪进行的。使用R和Grads程序进行统计计算和数据可视化。欧米茄型阻塞，2022年12月30日在伊斯坦布尔开始，对2023年1月1日和2日产生了重大影响，PM10和PM2.5浓度值分别达到了572.8和254.20µg/m3的峰值。此外,发现几乎所有站点在检查期间的平均浓度值都高于1月和2月的平均值。因此,在这些日历日期之间，伊斯坦布尔的空气质量被确定为“差”。发现阻塞不影响臭氧(μg/m3)浓度。还发现，伊斯坦布尔地区的阻塞效应增加了直径为10µm或更小（PM10）的颗粒物（PM）和直径为2.5µm或更小（PM2.5）的浓度。最后,根据使用测高仪获得的数据，云基高度降至30m，垂直能见度降至10m。
