Spatial and Temporal Variations in Rainwater Chemistry in a Rapid Urbanization Area of Shenzhen, China DOI Creative Commons

Yilong Huang,

Jingwei Yang, Chang Liu

et al.

Atmosphere, Journal Year: 2024, Volume and Issue: 15(12), P. 1536 - 1536

Published: Dec. 21, 2024

Studying chemical constituents in rainwater can provide insights into the origin, characteristics, concentration, and processes involved clearing atmospheric pollutants. This study investigated spatial–temporal variations chemistry characteristics a rapidly urbanizing area of Shenzhen from 2007 to 2022. The mean pH during 2007–2022 was 5.12 ± 0.45, significantly higher than 4.51 recorded 2006. electrical conductivity (EC) rainfall 15.79 2.63 μS/cm showed progressive decrease over years. Human activities influenced trends SO42−, which decreased, while NO3− Cl− increased time. cations Ca2+ NH4+ Mg2+, Na+, K+ increased. In recent years, Na+ Cl−, typical sea-salt ions, became dominant with continually rising contribution. also revealed that has been affected by both sulfuric nitric acid rain, formally ushering acid-type era. Spatial chemicals were observed, especially for conductivity, attributed urban growth, distance coast, industrial development. Moreover, total ion concentration demonstrated high values spring low summer due significant effect precipitation.

Language: Английский

Significant influence of urban human activities and marine input on rainwater chemistry in a coastal large city, China DOI
Jie Zeng, Guilin Han, Qixin Wu

et al.

Water Research, Journal Year: 2024, Volume and Issue: 257, P. 121657 - 121657

Published: April 22, 2024

Language: Английский

Citations

17
Influence of meteorological variables and human activities on precipitation chemistry in the Guanzhong Plain, Northwest China DOI

Raymond Wai-Yin Sun,

Xiaofei Li, Huayu Huang

et al.

Atmospheric Pollution Research, Journal Year: 2025, Volume and Issue: unknown, P. 102523 - 102523

Published: March 1, 2025

Language: Английский

Citations

0
Localized regional environmental risk in mountainous urban areas of Southwest China: identification, assessment, and management strategies in Kunming DOI
Wei Jin,

Qianwen Mo,

Guihong Li

et al.

Environmental Science Processes & Impacts, Journal Year: 2024, Volume and Issue: 27(1), P. 63 - 75

Published: Sept. 2, 2024

In recent decades, the escalating frequency of environmental risk events, arising from sources such as industrial accidents, chemical spills, or other anthropogenic activities, has intensified threats to ecological environment. The targeted identification high-risk areas, formulation control lists for key within regions, and implementation differentiated management strategies remain significant challenges. This study employed an administrative region assessment gridded analysis method comprehensively evaluate risks in city Kunming, China. results indicated a fourfold increase number 2012 2022. were found be widely distributed across entire but exhibited localized clustering. receptors primarily concentrated around local lake, densely populated counties, near rivers drinking water sources. Risk hotspot areas target identified using method. A list 29 was proposed, including nine parks 20 streets. Measures proposed handling unexpected incidents. findings provide data useful policy similar regions mountainous cities.

Language: Английский

Citations

0
Spatial and Temporal Variations in Rainwater Chemistry in a Rapid Urbanization Area of Shenzhen, China DOI Creative Commons

Yilong Huang,

Jingwei Yang, Chang Liu

et al.

Atmosphere, Journal Year: 2024, Volume and Issue: 15(12), P. 1536 - 1536

Published: Dec. 21, 2024

Studying chemical constituents in rainwater can provide insights into the origin, characteristics, concentration, and processes involved clearing atmospheric pollutants. This study investigated spatial–temporal variations chemistry characteristics a rapidly urbanizing area of Shenzhen from 2007 to 2022. The mean pH during 2007–2022 was 5.12 ± 0.45, significantly higher than 4.51 recorded 2006. electrical conductivity (EC) rainfall 15.79 2.63 μS/cm showed progressive decrease over years. Human activities influenced trends SO42−, which decreased, while NO3− Cl− increased time. cations Ca2+ NH4+ Mg2+, Na+, K+ increased. In recent years, Na+ Cl−, typical sea-salt ions, became dominant with continually rising contribution. also revealed that has been affected by both sulfuric nitric acid rain, formally ushering acid-type era. Spatial chemicals were observed, especially for conductivity, attributed urban growth, distance coast, industrial development. Moreover, total ion concentration demonstrated high values spring low summer due significant effect precipitation.

Language: Английский

Citations

0