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Li Y, Livi KJT, Arenberg MR, Xu S, Arai Y. Depth sequence distribution of water extractable colloidal phosphorus and its phosphorus speciation in intensively managed agricultural soils. CHEMOSPHERE 2022; 286:131665. [PMID: 34315076 DOI: 10.1016/j.chemosphere.2021.131665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/17/2021] [Accepted: 07/22/2021] [Indexed: 06/13/2023]
Abstract
Legacy phosphorus (P) has accelerated the subsurface transport of colloidal P (CP) in intensively managed agricultural soils in the Midwestern U.S. Because of its high P sorption capacity and mobility, understanding the depth sequence distribution of mobile CP and its speciation in the soil profile is critical in assessing total P (TP) loss to protect the water quality of adjacent water bodies. In this study, physicochemical properties of water-extractable colloids (WECs) from the soil profile at 0-180 cm were characterized using conventional wet chemical analysis. Solution P-31 nuclear magnetic resonance spectroscopy (NMR), P and Fe K-edge X-ray absorption spectroscopy, and transmission electron microscopy were also used to understand P speciation and mineralogy of CP. Percent recovery of WECs per bulk soil increased more than three times with increasing depth. Considering mildly alkaline pH of pore water and negative zeta potential (-21 ± 4 mV) of WECs (size: 1.65 ± 0.45 μm), the transport of P rich WECs (TP: approximately 210-700 mg kg-1) were facilitated from surface to subsoils. Generally, TP in WEC decreased with increasing depth. Interestingly, WECs in subsoil contain organic P (OP) as much as 60 mg kg-1. NMR analysis clearly showed the presence of OP monoesters, OP diesters, and orthophosphate in these particles. Both orthophosphate and OP species interacted with iron oxyhydroxides, calcite, and aluminol functional groups of gibbsite and or phyllosilicates. The study showed the availability of WECs from surface to subsoils that carry orthophosphate as well as OP in legacy P impacted agricultural soils in the Midwestern U.S.
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Affiliation(s)
- Ying Li
- Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, 61801, USA
| | - Kenneth J T Livi
- Materials Science and Engineering, Johns Hopkins University, USA
| | - Mary R Arenberg
- Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, 61801, USA
| | - Suwei Xu
- Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, 61801, USA
| | - Yuji Arai
- Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana-Champaign, 61801, USA.
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Bessa da Silva M, Abrantes N, Nogueira V, Gonçalves F, Pereira R. TiO2 nanoparticles for the remediation of eutrophic shallow freshwater systems: Efficiency and impacts on aquatic biota under a microcosm experiment. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 178:58-71. [PMID: 27471045 DOI: 10.1016/j.aquatox.2016.07.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 07/02/2016] [Accepted: 07/13/2016] [Indexed: 06/06/2023]
Abstract
The application of nanomaterials (NMs) in the remediation of eutrophic waters, particularly in the control of internal loading of nutrients, has been started, but limited investigations evaluated the effectiveness of these new treatment approaches and of their potential impacts on species from shallow freshwater lakes. The present work investigated, under a microcosm experiment, the application of a TiO2 nanomaterial both for reducing nutrient (mainly phosphorus and nitrogen forms) desorption and release from sediments (preventive treatment-PT) and for eliminating algal blooms (remediation treatment-RT). Furthermore, we also intended to assess the potential impacts of nano-TiO2 application on key freshwater species. The results showed the effectiveness of nano-TiO2 in controlling the release of phosphates from surface sediment and the subsequent reduction of total phosphorus in the water column. A reduction in total nitrogen was also observed. Such changes in nutrient dynamics contributed to a progressive inhibition of development of algae after the application of the NM in PT microcosms. Concerning the ability of nano-TiO2 to interact with algal cells, this interaction has likely occurred, mainly in RT, enhancing the formation of aggregates and their rapid settlement, thus reducing the algal bloom. Both treatments caused deleterious effects on freshwater species. In PT, Daphnia magna and Lemna minor showed a significant inhibition of several endpoints. Conversely, no inhibitory effect on the growth of Chironomus riparius was recorded. In opposite, C. riparius was the most affected species in RT microcosms. Such difference was probably caused by the formation of larger TiO2-algae aggregates in RT, under a high algal density, that rapidly settled in the sediment, becoming less available for pelagic species. In summary, despite the effectiveness of both treatments in controlling internal nutrient loading and in the mitigating algal bloom episodes, their negative effects on biota have to be seriously taken into account.
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Affiliation(s)
- Márcia Bessa da Silva
- Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; CESAM (Centre of Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Nelson Abrantes
- CESAM (Centre of Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Department of Environment and Planning, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Verónica Nogueira
- Department of Biology & GreenUP/CITAB-UP, Porto, Portugal, Faculty of Science, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; CIIMAR (Interdisciplinary Centre of Marine and Environmental Research), University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - Fernando Gonçalves
- Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; CESAM (Centre of Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Ruth Pereira
- Department of Biology & GreenUP/CITAB-UP, Porto, Portugal, Faculty of Science, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; CIIMAR (Interdisciplinary Centre of Marine and Environmental Research), University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
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Dupas R, Gruau G, Gu S, Humbert G, Jaffrézic A, Gascuel-Odoux C. Groundwater control of biogeochemical processes causing phosphorus release from riparian wetlands. WATER RESEARCH 2015; 84:307-314. [PMID: 26255128 DOI: 10.1016/j.watres.2015.07.048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 07/20/2015] [Accepted: 07/28/2015] [Indexed: 06/04/2023]
Abstract
Because of the high sorption affinity of phosphorus (P) for the soil solid phase, mitigation options to reduce diffuse P transfer usually focus on trapping particulate P delivered via surface flow paths. Therefore, placing riparian buffers between croplands and watercourses has been promoted worldwide, sometimes in wetland areas. To investigate the risk of P-accumulating riparian wetlands (RWs) releasing dissolved P into streams, we monitored molybdate-reactive P (MRP) in the soil pore water of two RWs in an agricultural watershed. Two main mechanisms released MRP under the control of groundwater dynamics. First, soil rewetting after the dry summer period was associated with the presence of a pool of mobile P, limited in size. Its mobilization started under water saturated conditions caused by a rise in groundwater. Second, anoxic conditions at the end of winter caused reductive dissolution of Fe (hydr)oxides along with a release of MRP. Comparison of sites revealed that the first MRP release occurred only in RWs with P-enriched soils, whereas the second was observed even in RWs with low soil P status. Seasonal variations in stream MRP concentrations were similar to concentrations in RW soils. Hence, RWs can act as a key component of the P transfer continuum in agricultural landscapes by converting particulate P from croplands into MRP transferred to streams.
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Affiliation(s)
- Rémi Dupas
- Agrocampus Ouest, UMR 1069 Sol Agro et hydrosystème Spatialisation, F-35000 Rennes, France; INRA, UMR1069 Sol Agro et hydrosystème Spatialisation, F-35000 Rennes, France; Université européenne de Bretagne, France.
| | - Gérard Gruau
- Observatoire des Sciences de l'Univers de Rennes, CNRS, UMR 6118, Géosciences Rennes, Rennes, France
| | - Sen Gu
- Observatoire des Sciences de l'Univers de Rennes, CNRS, UMR 6118, Géosciences Rennes, Rennes, France
| | - Guillaume Humbert
- Agrocampus Ouest, UMR 1069 Sol Agro et hydrosystème Spatialisation, F-35000 Rennes, France; INRA, UMR1069 Sol Agro et hydrosystème Spatialisation, F-35000 Rennes, France; Université européenne de Bretagne, France
| | - Anne Jaffrézic
- Agrocampus Ouest, UMR 1069 Sol Agro et hydrosystème Spatialisation, F-35000 Rennes, France; INRA, UMR1069 Sol Agro et hydrosystème Spatialisation, F-35000 Rennes, France; Université européenne de Bretagne, France
| | - Chantal Gascuel-Odoux
- Agrocampus Ouest, UMR 1069 Sol Agro et hydrosystème Spatialisation, F-35000 Rennes, France; INRA, UMR1069 Sol Agro et hydrosystème Spatialisation, F-35000 Rennes, France; Université européenne de Bretagne, France
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Jennings E, Allott N, Pierson DC, Schneiderman EM, Lenihan D, Samuelsson P, Taylor D. Impacts of climate change on phosphorus loading from a grassland catchment: implications for future management. WATER RESEARCH 2009; 43:4316-4326. [PMID: 19646731 DOI: 10.1016/j.watres.2009.06.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2008] [Revised: 06/11/2009] [Accepted: 06/14/2009] [Indexed: 05/28/2023]
Abstract
Dynamic modelling was used to quantify the impact of projected climate change, and potential changes in population and land use, on phosphorus (P) export from a sub-catchment in SW Ireland using the Generalised Watershed Loading Functions (GWLF) model. Overall the results indicated that the increase in annual total phosphorus loads attributable to climate change was greater than that from either population or land use change, and therefore that future climate variability will pose an increasingly significant threat to the successful long-term implementation of catchment management initiatives. The seasonal pattern in projected P export mirrored changes in streamflow, with higher rates between January and April and lower rates in summer. The potential reduction in export in summer was, however, negated when increases in population were included in simulations. A change in the slurry spreading period from that stipulated in national regulations to the months between April and September could potentially mitigate against future increases in dissolved P export in spring. The results indicate that projected changes in climate should be included when undertaking modelling exercises in support of decision making for catchment management plans.
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Affiliation(s)
- Eleanor Jennings
- Centre for the Environment, School of Natural Sciences, Trinity College Dublin, Dublin, Ireland.
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Burkholder J, Libra B, Weyer P, Heathcote S, Kolpin D, Thorne PS, Wichman M. Impacts of waste from concentrated animal feeding operations on water quality. ENVIRONMENTAL HEALTH PERSPECTIVES 2007; 115:308-12. [PMID: 17384784 PMCID: PMC1817674 DOI: 10.1289/ehp.8839] [Citation(s) in RCA: 178] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2005] [Accepted: 11/13/2006] [Indexed: 05/14/2023]
Abstract
Waste from agricultural livestock operations has been a long-standing concern with respect to contamination of water resources, particularly in terms of nutrient pollution. However, the recent growth of concentrated animal feeding operations (CAFOs) presents a greater risk to water quality because of both the increased volume of waste and to contaminants that may be present (e.g., antibiotics and other veterinary drugs) that may have both environmental and public health importance. Based on available data, generally accepted livestock waste management practices do not adequately or effectively protect water resources from contamination with excessive nutrients, microbial pathogens, and pharmaceuticals present in the waste. Impacts on surface water sources and wildlife have been documented in many agricultural areas in the United States. Potential impacts on human and environmental health from long-term inadvertent exposure to water contaminated with pharmaceuticals and other compounds are a growing public concern. This work-group, which is part of the Conference on Environmental Health Impacts of Concentrated Animal Feeding Operations: Anticipating Hazards--Searching for Solutions, identified needs for rigorous ecosystem monitoring in the vicinity of CAFOs and for improved characterization of major toxicants affecting the environment and human health. Last, there is a need to promote and enforce best practices to minimize inputs of nutrients and toxicants from CAFOs into freshwater and marine ecosystems.
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Affiliation(s)
| | - Bob Libra
- Iowa Geological Survey, Iowa City, Iowa, USA
| | - Peter Weyer
- The University of Iowa, Iowa City, Iowa, USA
| | | | - Dana Kolpin
- Toxic Substances Hydrology Program, U.S. Geological Survey, Iowa City, Iowa, USA
| | - Peter S. Thorne
- The University of Iowa, Iowa City, Iowa, USA
- Address correspondence to P.S. Thorne, College of Public Health, 100 Oakdale Campus, The University of Iowa, 176 IREH, Iowa City, IA 52242 USA. Telephone: (319) 335-4216. Fax: (319) 335-4225. E-mail:
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Haygarth PM. Linking landscape sources of phosphorus and sediment to ecological impacts in surface waters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2005; 344:1-3. [PMID: 15907505 DOI: 10.1016/j.scitotenv.2005.02.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
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