Investigation of atmospheric VOCs sources and ozone formation sensitivity during epidemic closure and control: A case study of Zhengzhou

Guo, Jiahua; Xu, Qixiang; Yu, Shijie; Zhao, Bingnan; Zhang, Meng

doi:10.1016/j.apr.2023.102035

Cited by 4 publications

(1 citation statement)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2022, Zhengzhou's Gross Domestic Product (GDP) reached 1293.47 trillion yuan (J. Guo et al, 2024), ranking it 16th among China's urban GDPs. Over the past decade, Zhengzhou's growth has been closely linked to the electronic information industrial chain, with Xinzheng Airport Area (XZA) serving as the world's largest iPhone processing base, responsible for 50% of Apple's total production.…”

Section: Study Areamentioning

confidence: 99%

Spatiotemporal Dynamics of COVID‐19 Pandemic City Lockdown: Insights From Nighttime Light Remote Sensing

Jiang,

Liu

2024

GeoHealth

View full text Add to dashboard Cite

The global COVID‐19 outbreak severely hampered the growth of the global economy, prompting the implementation of the strictest prevention policies in China. Establishing a significant relationship between changes in nighttime light and COVID‐19 lockdowns from a geospatial perspective is essential. In light of nighttime light remote sensing, we evaluated the spatiotemporal dynamic effects of COVID‐19 city lockdowns on human activity intensity in the Zhengzhou region. Prior to the COVID‐19 outbreak, nighttime light in the Zhengzhou region maintained a significant growth trend, even under regular control measures. However, following the October 2022 COVID‐19 lockdown, nighttime light experienced a substantial decrease. In the central area of Zhengzhou, nighttime light decreased by at least 18% compared to pre‐lockdown levels, while in the sub‐center, the decrease was around 14%. The areas where nighttime light decreased the most in the central region were primarily within a 15 km radius, while in the sub‐center, the decrease was concentrated within a 5 km radius. These changes in both statistical data and nighttime light underscored the significant impact of the COVID‐19 lockdown on economic activities in the Zhengzhou region.

show abstract

Section: Study Areamentioning

confidence: 99%