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DOI	10.1016/j.atmosenv.2021.118446
	On the complexity of anthropogenic and geological sources of carbon dioxide: Onsite differentiation using isotope surveying
	Di Martino R.M.R.; Capasso G.
发表日期	2021
ISSN	1352-2310
卷号	256
英文摘要	Anthropogenic emissions of greenhouse gases (GHGs) co-occur with emissions of these gases from volcanic and urban environments. Therefore, it remains a challenge for the scientific community to identify the contamination sources and quantify the specific contributions. Stable isotopes have many applications in different fields under geosciences, including volcanology, environmental surveying, and climatology. Isotopic surveys allow identification of photosynthetic fractionation in tree forests and gas sources in urban zones, and tracking of volcanic degassing. Thus, the stable isotopic composition of the local GHGs allows the evaluation of the environmental impacts and assists in mitigating the emissions. The present study aimed to distinguish the tropospheric sources of CO2 in the different ecosystems based on the stable isotopic composition of CO2. The study relies on field experiments performed in both volcanic and urban zones of the Mediterranean region. Experiments to identify the CO2 origins were designed and conducted in the field. The CO2 in the air in Palermo, the soil CO2 released at Vulcano (Aeolian Islands, Italy), and the CO2 emitted at Cava dei Selci (Rome, Italy) were selected for conducting case studies. Isotope surveying of the CO2-containing air in Palermo revealed that the CO2 content was correlated to human activity. Mobile-based measurements of carbon isotope were conducted to distinguish the different sources of CO2 at the district scale. In particular, the isotopic surveying process distinguished landfill-related CO2 emissions from the fossil fuel burning ones. The underlying geological reservoir was identified as the main source of air CO2 at Cava dei Selci. Finally, partitioning of soil CO2 enabled estimation of the geological CO2 estimation in the Vulcano Porto settled zones. The results of the present study revealed that detailed investigations on stable isotopes assist in tracking the CO2 sources and the fate of gas emissions. The fine-tuned experimental solutions assisted in broadening the research perspectives. In addition, deeper insights into the carbon cycle were obtained. © 2021 Elsevier Ltd
关键词	Carbon dioxide Greenhouse gas emissions Mediterranean region Stable isotopes Volcanic gases
语种	英语
scopus关键词	Environmental impact; Fossil fuels; Gas emissions; Geology; Greenhouse gases; Isotopes; Surveys; Volcanoes; Anthropogenic emissions; Anthropogenics; Greenhouse gas emissions; Greenhouses gas; Mediterranean region; Soil CO; Stable isotopes; Stable isotopic compositions; Urban zones; Volcanic gas; Carbon dioxide; carbon 13; carbon dioxide; fossil fuel; ground water; oxygen 18; sea water; stable isotope; toxic gas; toxic substance; anthropogenic source; carbon cycle; carbon dioxide; carbon emission; carbon isotope; complexity; fossil fuel; greenhouse gas; human activity; isotopic analysis; isotopic composition; reservoir; urban area; air pollution; Article; calibration; carbon cycle; carbon footprint; ecosystem; environmental impact; field experiment; geology; greenhouse gas; industry; Italy; landfill; lethal concentration; pollution; priority journal; soil pollution; Southern Europe; troposphere; urban area; volcano; waste management; Italy; Mediterranean Region
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248404
作者单位	Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo - Via Ugo La Malfa, Palermo, 153 - 90146, Italy
推荐引用方式 GB/T 7714	Di Martino R.M.R.,Capasso G.. On the complexity of anthropogenic and geological sources of carbon dioxide: Onsite differentiation using isotope surveying[J],2021,256.
APA	Di Martino R.M.R.,&Capasso G..(2021).On the complexity of anthropogenic and geological sources of carbon dioxide: Onsite differentiation using isotope surveying.ATMOSPHERIC ENVIRONMENT,256.
MLA	Di Martino R.M.R.,et al."On the complexity of anthropogenic and geological sources of carbon dioxide: Onsite differentiation using isotope surveying".ATMOSPHERIC ENVIRONMENT 256(2021).