Alterations in the macrobenthic fauna from Guadarranque River (Southern Spain) associated with sediment–seawater acidification deriving from CO2 leakage

Almagro-Pastor, V.; Conradi, Mercedes; DelValls, T.À.; Riba, Inmaculada

doi:10.1016/j.marpolbul.2015.05.044

Cited by 18 publications

(6 citation statements)

References 44 publications

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“…The ecological integrity of the macrobenthic community related to the total abundance and diversity showed to be associated with the sediment contamination of the sampling sites, though not with the pH reduction. However, previous studies showed significant changes in the structure and reductions in diversity, abundance, and biomass of the benthic communities exposed to acidification scenarios [8,37,38]. These results confirm the obtained results (Table 3 and Figure 4) that showed a significant (p < 0.05) difference in the TRO benthic community at pH 8.0 when compared to the reference case.…”

Section: Multivariate Analysissupporting

confidence: 91%

Risk Assessment of a Coastal Ecosystem from SW Spain Exposed to CO2 Enrichment Conditions

et al. 2023

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The Weight-of-Evidence (WOE) approach uses multiple lines of evidence to analyze the adverse effects associated with CO2 enrichment in two stations from the Gulf of Cádiz (Spain) with different contamination degrees. Sediment contamination and metal (loid) mobility, toxicity, ecological integrity, and bioaccumulation from the samples exposed to different acidification scenarios (pH gradient from 8.0 to 6.0) were used in the WOE. The experiments were conducted under laboratory conditions using a CO2-bubbling system. Different integration approaches such as multivariate analyses were used to evaluate the results. The results indicated that the adverse biological effects under pH 6.5 were related to the mobility of dissolved elements (As, Fe, Cu, Ni, and Zn). Furthermore, the pH reduction was correlated to the increase of bioaccumulation of As, Cr, Cu, Fe, and Ni in the tissues of mussels at pH 7.0. The noncontaminated sediment showed environmental degradation related to the acidification at pH values of 7.0; whereas the sediment moderately contaminated showed both environmental risks, caused by acidification and the presence and the increase of the bioavailability of contaminants. The WOE approach supposes an effective tool to identify and distinguish the causes of adverse effects related to the enrichment of CO2 in marine environments.

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Section: Multivariate Analysissupporting

confidence: 91%

Risk Assessment of a Coastal Ecosystem from SW Spain Exposed to CO2 Enrichment Conditions

et al. 2023

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“…Sediments from D0 were sieved immediately and the retained fauna were fixed. The experiments were performed following [29]. After the acclimation time (1 day), mesocosms were performed in duplicate and maintained at 21 • C with natural photoperiod, and constant aeration for 21 days.…”

Section: Macro-benthic Communitymentioning

confidence: 99%

Integrative Assessment of Sediments Affected by CO2 Enrichment: A Case Study in the Bay of Santos—SP, Brazil

et al. 2021

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CO2 enrichment in the marine environment caused by leakages from carbon capture and storage technologies may occur over operational procedures. An integrated approach using weight-of-evidence was applied to assess the environmental risk associated with the acidification caused by CO2 enrichment in coastal sediments from Santos (Brazil). Chemical analyses (metal(loid)s and organic contaminant (e.g., hydrocarbons), toxicity tests (amphipods mortality, sea-urchin embryo-larval development) and macro-benthic community structure alteration assessment were performed with different acidified scenarios (pH 8.0–6.0) for two stations with different contamination degrees. These lines of evidence were statistically analyzed and integrated (multivariate analysis and ANOVA). Results of toxicity showed significant chronic effects starting at pH 7.0 while acute effects were observed starting at pH 6.5. The macro-benthic community integrity showed significant differences for all treatments at the Piaçaguera channel station, considered to be moderately contaminated. Results from the multivariate analysis correlated toxic effects and increase in the mobility of some elements with acidification. Also, the biological indexes were correlated with concentrations of dissolved Zn in seawater. The pH of 6.0 was extremely toxic for marine life due to its high acidification and metal bioavailability. The approach herein identified and discriminated the origin of the degradation caused by the acidification related to the enrichment of CO2.

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“…All these potential risks may provoke negative effects on the environment. Potential impacts on the environment deriving from possible CO2 leakages related to CCS are becoming better understood by the scientific community; however, there is still a lack of knowledge and data (Almagro-Pastor et al 2015;Borrero-Santiago et al 2016;Gilfillan et al 2017;Morkner et al 2022).…”

Section: The Precautionary Principle and Ccsmentioning

confidence: 99%

The Application of the Environment Act 2021 Principles to Carbon Capture and Storage

Rutherford

2022

Laws

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Carbon Capture and Storage (CCS) is a new technology considered to have the potential to decarbonise economies. However, nationally and internationally the use of CCS has also been raising concerns about its potential global risks and adverse impacts on the environment. CCS was part of the discussions at the fourth United Nations Environment Assembly (UNEA) in March 2019 and in side-events in the 26th UN Climate Change Conference that took place in Glasgow in November 2021. The UK Government aims to deploy CCS at scale during the 2030s, subject to cost reduction. At the same time, the UK Government has recently enacted the Environment Act 2021, which provides a set of five environmental principles: the integration principle, the principle of preventative action, the precautionary principle, the rectification at source principle and the polluter pays principle. This work seeks to analyse the application of the UK environmental law principles to carbon capture and storage policies in the United Kingdom and its balance with other considerations. Given the concerns surrounding the use of CCS, the debate about its legality may arise in the United Kingdom and in other countries. To this end, this paper initially carries out a systematic review of CCS policy documents to discover the policy considerations that support the development of CCS. It then examines the application of the UK environmental law principles to CCS initiatives and its balance with other considerations, such as reduction of carbon emissions, security of energy supply, economic growth and technological leadership. In doing so, this paper aims at contributing to the debate surrounding recent technological developments that have been utilised to help address climate change and some of the legal challenges emerging through the use of CCS under UK environmental law.

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Alterations in the macrobenthic fauna from Guadarranque River (Southern Spain) associated with sediment–seawater acidification deriving from CO2 leakage

Cited by 18 publications

References 44 publications

Risk Assessment of a Coastal Ecosystem from SW Spain Exposed to CO2 Enrichment Conditions

Risk Assessment of a Coastal Ecosystem from SW Spain Exposed to CO2 Enrichment Conditions

Integrative Assessment of Sediments Affected by CO2 Enrichment: A Case Study in the Bay of Santos—SP, Brazil

The Application of the Environment Act 2021 Principles to Carbon Capture and Storage

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