Air Quality Variation in Wuhan, Daegu, and Tokyo during the Explosive Outbreak of COVID-19 and Its Health Effects
Air Quality Variation in Wuhan, Daegu, and Tokyo during the Explosive Outbreak of COVID-19 and Its Health Effects
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DOI：
10.3390/ijerph17114119
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发表时间：
2020-06-01
影响因子：
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通讯作者：
Kang, Gong-Unn
中科院分区：
文献类型：
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作者：
Ma, Chang-Jin;Kang, Gong-Unn
本研究旨在评估在经历COVID-19爆发的亚洲国家的三个城市（武汉、大邱和东京）的空气污染监测站（AQMS）在短时间内实际测量的空气质量变化。此外，我们还尝试计算细支气管（Br.）和肺泡间质（AI）区域的10岁儿童后，城市封锁/每个城市的自我反思。通过比较封锁（武汉）和自我反省（大邱和东京）前后一个月的PM2.5平均值，可以清楚地看到，武汉、大邱和东京的PM2.5浓度分别下降了29.9%、20.9%和3.6%。武汉、大邱和东京的NO2浓度也分别福尔斯了53.2%、19.0%和10.4%。武汉因COVID-19导致PM2. 5浓度下降幅度最大，其PM2. 5剂量（10岁儿童）（微克）下降幅度也最大（在Br. AI为6222 μ g），其次是大邱（Br.和1287微克在AI），和东京（18微克在Br.和52亩在AI），超过两个月后，城市封锁/自我反思。我们的研究结果表明，城市封锁/自我反思具有降低PM2.5浓度的效果，导致10岁儿童发生急性过敏性气道炎症（AAI）的时间延长。
This study was designed to assess the variation of the air quality actually measured from the air pollution monitoring stations (AQMS) in three cities (Wuhan, Daegu, and Tokyo), in Asian countries experiencing the explosive outbreak of COVID-19, in a short period of time. In addition, we made a new attempt to calculate the reduced Dose(PM2.5) (mu g) at the bronchiolar (Br.) and alveolar-interstitial (AI) regions of the 10-year-old children after the city lockdown/self-reflection of each city. A comparison of the average PM2.5 of a month before and after the lockdown (Wuhan) and self-reflection (Daegu and Tokyo) clearly shows that the PM2.5 concentration was decreased by 29.9, 20.9, and 3.6% in Wuhan, Daegu and Tokyo, respectively. Wuhan, Daegu and Tokyo also recorded 53.2, 19.0, and 10.4% falls of NO2 concentration, respectively. Wuhan, which had the largest decrease of PM2.5 concentration due to COVID-19, also marked the largest reduced Dose(PM2.5 10-year-old children) (mu g) (3660 mu g at Br. and 6222 mu g at AI), followed by Daegu (445 mu g at Br. and 1287 mu g at AI), and Tokyo (18 mu g at Br. and 52 mu g at AI), over two months after the city lockdown/self-reflection. Our results suggest that the city lockdown/self-reflection had the effect of lowering the concentration of PM2.5, resulting in an extension of the period it took to the acute allergic airway inflammation (AAI) for the 10-year-old children.