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Article ; Online: Toward Water Security (SDG 6) amidst the Climate and Water Crisis: Lessons from Chile.

Rivera, Rayén / Leal, Carlos / Barra, Ricardo O

Environmental science & technology

2023 Volume 57, Issue 35, Page(s) 12940–12943

MeSH term(s)	Chile ; Sustainable Development ; Climate ; Water Supply
Language	English
Publishing date	2023-08-24
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1520-5851
ISSN (online)	1520-5851
DOI	10.1021/acs.est.3c05466
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Article ; Online: Groundwater Leaching Potential of Pesticides: A Historic Review and Critical Analysis.

Araya, German / Perfetti-Bolaño, Alessandra / Sandoval, Marco / Araneda, Alberto / Barra, Ricardo O

Environmental toxicology and chemistry

2024

Abstract: We evaluated the main leaching indices that have been used for decades for the protection of groundwater against contamination by pesticides. We describe the index classifications in detail and discuss their advantages and limitations relative to their ... ...

Abstract	We evaluated the main leaching indices that have been used for decades for the protection of groundwater against contamination by pesticides. We describe the index classifications in detail and discuss their advantages and limitations relative to their prediction value. Most of the indices have similarities in the types of parameters they use. Some of the similarities are basic physicochemical properties of the pesticides such as their water solubility and their organic carbon partition coefficient, as well as characteristics such as environmental persistence in the soil and some soil characteristics. It is very difficult to maintain a simple index with high predictive power. However, comparisons are allowed by many indices among different active ingredients before pesticides are classified according to the risk of being groundwater contaminants. In contrast, limitations are the scarce inclusion of pesticide byproducts in the ground, lack of prediction capacity for polar pesticides, and lack of prediction of the vulnerability of groundwater to being contaminated by pesticides. Despite the limitations of such approaches, they are of great utility, particularly for protection of groundwater from pesticide contamination when little information is available, which is the case in most developing countries and in countries with economies in transition. Caution is recommended in the analysis of information generated by these approximations, which ideally should be validated experimentally in the different application scenarios and the needs for pesticide assessment based on local information. Environ Toxicol Chem 2024;00:1-14. © 2024 SETAC.
Language	English
Publishing date	2024-04-17
Publishing country	United States
Document type	Journal Article ; Review
ZDB-ID	46234-2
ISSN	1552-8618 ; 0730-7268
ISSN (online)	1552-8618
ISSN	0730-7268
DOI	10.1002/etc.5869
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Article: Towards a Chilean Water Governance: A Study on the Los Batros and Paicaví Wetland Reservoirs

Quevedo, Francisca / Rojas Hernández, Jorge / Barra, Ricardo O.

Water. 2022 Sept. 13, v. 14, no. 18

2022

Abstract: The creation of the Urban Wetlands Law has emerged as a promising initiative to address the challenges of urban wetland management in Chile. Concepción, with its urban wetlands, is presented as a relevant case study for the analysis of water management ... ...

Abstract	The creation of the Urban Wetlands Law has emerged as a promising initiative to address the challenges of urban wetland management in Chile. Concepción, with its urban wetlands, is presented as a relevant case study for the analysis of water management of these ecosystems. The simple identification of the actors involved in the territory is not enough to achieve a clear understanding of the problem, so this article focuses on the networks of actors that are involved in the water management practices of the wetland ecosystems of Los Batros and Paicaví. In this work, the application of grounded theory and semi-structured interviews with key actors were combined. The main results indicate that water management has elements that are close to polycentric governance, such as the aforementioned law, where there are coordination initiatives among actors and power limitations in the analyzed cases. However, this research identifies several areas of improvement regarding decentralization, citizen participation, mitigation, and adaptation actions.
Keywords	case studies ; citizen participation ; decentralization ; governance ; water ; water analysis ; water management ; wetland management ; wetlands ; Chile
Language	English
Dates of publication	2022-0913
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2521238-2
ISSN	2073-4441
ISSN	2073-4441
DOI	10.3390/w14182861
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Article: Analysis of the contribution of locally derived wastewater to the occurrence of Pharmaceuticals and Personal Care Products in Antarctic coastal waters

Perfetti-Bolaño, Alessandra / Muñoz, Katherine / Kolok, Alan S. / Araneda, Alberto / Barra, Ricardo O.

Science of the total environment. 2022 Dec. 10, v. 851

2022

Abstract: Pharmaceuticals and Personal Care Products (PPCPs) are emerging pollutants detected in many locations of the world including Antarctica. The main objective of this review is to discuss the influence of the human population on the concentration, ... ...

Abstract	Pharmaceuticals and Personal Care Products (PPCPs) are emerging pollutants detected in many locations of the world including Antarctica. The main objective of this review is to discuss the influence of the human population on the concentration, distribution and biological effects of PPCPs across the Antarctic coastal marine ecosystem. We carried out a review of the scientific articles published for PPCPs in Antarctic, supported by the information of the Antarctic stations reported by Council of Managers of National Antarctic Programs (CONMAP), Scientific Committee on Antarctic Research (SCAR) and Secretariat of the Antarctic Treaty (ATS). In addition, spatial data regarding the Antarctic continent was obtained from Quantarctica. Antarctic concentrations of PPCPs were more reflective of the treatment system used by research stations as opposed to the infrastructure built or the annual occupancy by station. The main problem is that most of the research stations lack tertiary treatment, resulting in elevated concentrations of PPCPs in effluents. Furthermore, the geographic distribution of Antarctic field stations in coastal areas allows for the release of PPCPs, directly into the sea, a practice that remains in compliance with the current Protocol. After their release, PPCPs can become incorporated into sea ice, which can then act as a chemical reservoir. In addition, there is no clarity on the effects on the local biota. Finally, we recommend regulating the entry and use of PPCPs in Antarctica given the difficulties of operating, and in some cases the complete absence of appropriate treatment systems. Further studies are needed on the fate, transport and biological effects of PPCPs on the Antarctic biota. It is recommended that research efforts be carried out in areas inhabited by humans to generate mitigation measures relative to potential adverse impacts. Tourism should be also considered in further studies due the temporal release of PPCPs.
Keywords	compliance ; drugs ; environment ; geographical distribution ; human population ; infrastructure ; marine ecosystems ; protocols ; sea ice ; spatial data ; tourism ; wastewater ; Antarctic region ; Antarctica
Language	English
Dates of publication	2022-1210
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2022.158116
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Article ; Online: Analysis of the contribution of locally derived wastewater to the occurrence of Pharmaceuticals and Personal Care Products in Antarctic coastal waters.

Perfetti-Bolaño, Alessandra / Muñoz, Katherine / Kolok, Alan S / Araneda, Alberto / Barra, Ricardo O

The Science of the total environment

2022 Volume 851, Issue Pt 1, Page(s) 158116

Abstract	Pharmaceuticals and Personal Care Products (PPCPs) are emerging pollutants detected in many locations of the world including Antarctica. The main objective of this review is to discuss the influence of the human population on the concentration, distribution and biological effects of PPCPs across the Antarctic coastal marine ecosystem. We carried out a review of the scientific articles published for PPCPs in Antarctic, supported by the information of the Antarctic stations reported by Council of Managers of National Antarctic Programs (CONMAP), Scientific Committee on Antarctic Research (SCAR) and Secretariat of the Antarctic Treaty (ATS). In addition, spatial data regarding the Antarctic continent was obtained from Quantarctica. Antarctic concentrations of PPCPs were more reflective of the treatment system used by research stations as opposed to the infrastructure built or the annual occupancy by station. The main problem is that most of the research stations lack tertiary treatment, resulting in elevated concentrations of PPCPs in effluents. Furthermore, the geographic distribution of Antarctic field stations in coastal areas allows for the release of PPCPs, directly into the sea, a practice that remains in compliance with the current Protocol. After their release, PPCPs can become incorporated into sea ice, which can then act as a chemical reservoir. In addition, there is no clarity on the effects on the local biota. Finally, we recommend regulating the entry and use of PPCPs in Antarctica given the difficulties of operating, and in some cases the complete absence of appropriate treatment systems. Further studies are needed on the fate, transport and biological effects of PPCPs on the Antarctic biota. It is recommended that research efforts be carried out in areas inhabited by humans to generate mitigation measures relative to potential adverse impacts. Tourism should be also considered in further studies due the temporal release of PPCPs.
MeSH term(s)	Antarctic Regions ; Cosmetics/analysis ; Ecosystem ; Environmental Monitoring/methods ; Environmental Pollutants/analysis ; Humans ; Pharmaceutical Preparations ; Waste Water/analysis ; Water Pollutants, Chemical/analysis
Chemical Substances	Cosmetics ; Environmental Pollutants ; Pharmaceutical Preparations ; Waste Water ; Water Pollutants, Chemical
Language	English
Publishing date	2022-08-18
Publishing country	Netherlands
Document type	Journal Article ; Review
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2022.158116
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Article ; Online: Assessing ammonium pollution and mitigation measures through a modified watershed non-point source model.

Han, Feng / Tian, Qing / Chen, Nengwang / Hu, Zhaoping / Wang, Yao / Xiong, Rui / Xu, Peng / Liu, Wei / Stehr, Alejandra / Barra, Ricardo O / Zheng, Yi

Water research

2024 Volume 254, Page(s) 121372

Abstract: Watershed water quality modeling is a valuable tool for managing ammonium ( ... ...

Abstract	Watershed water quality modeling is a valuable tool for managing ammonium (NH
MeSH term(s)	Ammonium Compounds ; Fertilizers ; Sewage ; Reproducibility of Results ; Environmental Monitoring/methods ; Nitrogen/analysis ; Water Quality ; China ; Rivers ; Water Pollutants, Chemical/analysis ; Phosphorus/analysis
Chemical Substances	Ammonium Compounds ; Fertilizers ; Sewage ; Nitrogen (N762921K75) ; Water Pollutants, Chemical ; Phosphorus (27YLU75U4W)
Language	English
Publishing date	2024-02-23
Publishing country	England
Document type	Journal Article
ZDB-ID	202613-2
ISSN	1879-2448 ; 0043-1354
ISSN (online)	1879-2448
ISSN	0043-1354
DOI	10.1016/j.watres.2024.121372
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Article: Novel entities and technologies: Environmental benefits and risks

Bierbaum, Rosina / Barra, Ricardo O / Leonard, Sunday A / Libre, Christina / Rejeski, David / Whaley, Christopher

Environmental science & policy. 2020 Mar., v. 105

2020

Abstract: Novel technologies are continually being developed every day. Lessons from the past show that some resulted in unintended harm to the Earth’s system. The challenge for organizations working at the interface of the environment, technology, and society is, ...

Abstract	Novel technologies are continually being developed every day. Lessons from the past show that some resulted in unintended harm to the Earth’s system. The challenge for organizations working at the interface of the environment, technology, and society is, therefore, how to best harness the environmental benefits from new technologies while minimizing their potential adverse effects. Here, we identify some of the emerging technologies that the international development community needs to consider as it seeks to take advantage of new technologies to promote sustainable development. There are several innovations – such as blockchain, nanotechnology, synthetic biology, cellular agriculture, and gene editing techniques that could either positively or negatively affect the environment, food security, human health, and the transition to clean energy. Some of their benefits and potential environmental and socio-economic concerns are discussed. We further suggest actions that can be taken by organizations involved in sustainable development, such as the United Nations and other global and regional bodies, to exploit the benefits from novel technologies and mitigate their risks.
Keywords	adverse effects ; cellular agriculture ; clean energy ; ecosystem services ; food security ; gene editing ; human health ; issues and policy ; nanotechnology ; risk ; socioeconomics ; sustainable development ; synthetic biology ; United Nations
Language	English
Dates of publication	2020-03
Size	p. 134-143.
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	1454687-5
ISSN	1462-9011
ISSN	1462-9011
DOI	10.1016/j.envsci.2019.11.002
Database	NAL-Catalogue (AGRICOLA)

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Article: Influence of Climate and Land Cover/Use Change on Water Balance: An Approach to Individual and Combined Effects

Martínez-Retureta, Rebeca / Aguayo, Mauricio / Abreu, Norberto J. / Urrutia, Roberto / Echeverría, Cristian / Lagos, Octavio / Rodríguez-López, Lien / Duran-Llacer, Iongel / Barra, Ricardo O.

Water. 2022 July 25, v. 14, no. 15

2022

Abstract: Land use/cover change (LUCC) and climate change (CC) affect water resource availability as they alter important hydrological processes. Mentioned factors modify the magnitude of surface runoff, groundwater recharge, and river flow among other parameters. ...

Abstract	Land use/cover change (LUCC) and climate change (CC) affect water resource availability as they alter important hydrological processes. Mentioned factors modify the magnitude of surface runoff, groundwater recharge, and river flow among other parameters. In the present work, changes that occurred in the recent decades at the Quino and Muco river watersheds in the south-central zone of Chile were evaluated to predict future cover/use changes considering a forest expansion scenario according to Chilean regulations. In this way an expansion by 42.3 km² and 52.7 km² at Quino and Muco watersheds, respectively, was predicted, reaching a watersheds’ occupation of 35.4% and 22.3% in 2051. Additionally, the local climatic model RegCM4-MPI-ESM-MR was used considering periods from 2020–2049 and 2050–2079, under the RCP 8.5 scenario. Finally, the SWAT model was applied to assess the hydrological response of both watersheds facing the considered forcing factors. Five scenarios were determined to evaluate the LUCC and CC individual and combined effects. The results depict a higher sensitivity of the watersheds to CC impacts, where an increase of evapotranspiration, with a lessening of percolation, surface flow, lateral flow, and groundwater flow, triggered a water yield (WYLD) decrease in all predicted scenarios. However, when both global changes act synergistically, the WYLD decreases considerably with reductions of 109.8 mm and 123.3 mm at the Quino and Muco watersheds, respectively, in the most extreme simulated scenario. This water scarcity context highlights the necessity to promote land use management strategies to counteract the imminent effects of CC in the watersheds.
Keywords	Soil and Water Assessment Tool model ; climate ; climate change ; climate models ; evapotranspiration ; forests ; groundwater flow ; groundwater recharge ; land cover ; land use planning ; occupations ; overland flow ; river flow ; rivers ; runoff ; water shortages ; water yield ; Chile
Language	English
Dates of publication	2022-0725
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2521238-2
ISSN	2073-4441
ISSN	2073-4441
DOI	10.3390/w14152304
Database	NAL-Catalogue (AGRICOLA)

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Article: Biotransport of persistent organic pollutants in the southern Hemisphere by invasive Chinook salmon (Oncorhynchus tshawytscha) in the rivers of northern Chilean Patagonia, a UNESCO biosphere reserve

Montory, Mónica / Habit, Evelyn / Fernandez, Pilar / Grimalt, Joan O / Kolok, Alan S / Barra, Ricardo O / Ferrer, Javier

Environment international. 2020 Sept., v. 142

2020

Abstract: Biotransport is often associated with migration patterns of species, including large, anadromous salmonids. Several studies have reported biotransport of persistent organic pollutants in the Northern Hemisphere, but there is no published information on ... ...

Abstract	Biotransport is often associated with migration patterns of species, including large, anadromous salmonids. Several studies have reported biotransport of persistent organic pollutants in the Northern Hemisphere, but there is no published information on biotransport ocurring south of the equator. Chile’s Patagonia is one of the last largely intact natural areas in the world. The objective of this study was to determine whether persistent organic pollutants are transported by the invasive Pacific Chinook salmon (O. tshawytscha) from the Pacific Ocean to Chilean Patagonia. Samples of juvenile and adult Chinook salmon were analyzed for polychlorinated biphenyls, pesticides and polybrominated diphenyl ethers. The results revealed that concentrations of POPs in adults migrating into Patagonian rivers were significantly higher than those found in juveniles migrating seaward. A mass balance analysis indicates that Chinook salmon are a source of persistent organic pollutants to Chilean Patagonia inland waters.Capsule: Biotransport of Persistent Organic Pollutants (POPs) by Chinook salmon (O. tshawytscha) from the Pacific Ocean to Chilean Patagonia has been confirmed by mass balance of POPs.
Keywords	Oncorhynchus tshawytscha ; United Nations Educational, Scientific and Cultural Organization ; adults ; anadromous fish ; biphenyl ; conservation areas ; environment ; juveniles ; polychlorinated biphenyls ; Argentina ; Chile ; Pacific Ocean
Language	English
Dates of publication	2020-09
Publishing place	Elsevier Ltd
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	554791-x
ISSN	1873-6750 ; 0160-4120
ISSN (online)	1873-6750
ISSN	0160-4120
DOI	10.1016/j.envint.2020.105803
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Article: Integrated approaches for detecting the occurrence and effects of endocrine disrupting substances in surface waters

Barra, Ricardo O / Cardenas-Soraca, Diana / Campos-Garagay, Matias / McMaster, Mark E / Hewitt, L. Mark

Current opinion in environmental science & health. 2020 Dec., v. 18

2020

Abstract: In this article, we document a strategy for addressing the difficulties of analyzing complex chemical mixtures of endocrine-disrupting substances (EDSs) in surface waters. The overall approach includes effect-based assessments to detect mixtures of EDSs ... ...

Abstract	In this article, we document a strategy for addressing the difficulties of analyzing complex chemical mixtures of endocrine-disrupting substances (EDSs) in surface waters. The overall approach includes effect-based assessments to detect mixtures of EDSs exerting real-world effects, the use of passive samplers for in situ extraction and preconcentration of compounds, effect-directed analysis to isolate causative substances and finally, nontargeted analysis to facilitate their identification. This package of integrated approaches can be instrumental to address endocrine-disrupting mixtures in water bodies because it balances chemical- and effect-based methods that are inclusive of the broad diversity of chemicals functioning as EDSs. These methods are complementary to each other and, when used together, result in a synergistic and multidisciplinary approach to holistically detect and manage complex mixtures of EDSs exerting a myriad of effects in aquatic ecosystems.
Keywords	aquatic ecosystems ; attitudes and opinions ; body water ; endocrine-disrupting chemicals ; environmental health ; samplers ; surface water
Language	English
Dates of publication	2020-12
Size	p. 20-25.
Publishing place	Elsevier B.V.
Document type	Article
Note	NALT-AP-4-rerunAP2-fuzzy
ISSN	2468-5844
DOI	10.1016/j.coesh.2020.06.002
Database	NAL-Catalogue (AGRICOLA)

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