A review of pesticide fate and transport simulation at watershed level using SWAT: Current status and research concerns

Wang, Ruoyu; Yuan, Yongping; Yen, Haw; Grieneisen, Michael L.; Arnold, Jeffrey G.; Wang, Dan; Wang, Chaozi; Zhang, Minghua

doi:10.1016/j.scitotenv.2019.03.141

Cited by 114 publications

(42 citation statements)

References 141 publications

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“…Their use is so common that the type of agriculture that uses them is called conventional agriculture, as opposed to other "alternative" that does not employ them. The continuous use of pesticides undoubtedly introduces unintended negative environmental impacts, such as the contamination of water sources and soils (Wang et al, 2019). When these agrochemicals are applied to the crop they usually end up in the soil from aerial and ground application (Kumari et al, 2008), where they can be retained by soil materials, be biologically or chemically degraded or be transported to other environmental compartments (Silva et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Optimization and validation of a QuEChERS-based method for the simultaneous environmental monitoring of 218 pesticide residues in clay loam soil

Acosta-Dacal

Rial-Berriel

Díaz-Díaz

et al. 2021

Science of The Total Environment

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Section: Introductionmentioning

confidence: 99%

Optimization and validation of a QuEChERS-based method for the simultaneous environmental monitoring of 218 pesticide residues in clay loam soil

Acosta-Dacal

Rial-Berriel

Díaz-Díaz

et al. 2021

Science of The Total Environment

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“…The SWAT model has many applications for the assessment of various processes occurring in river basins such as pesticide fate and transport modeling at watershed level [25], evapotranspiration on large areas [26], quantification of ecosystem services as a methodological framework for assisting the decision-making process [27], assessment of pollutant load in a river basin [28], impact assessment of individual land management strategies at basin scale [29,30], and evaluation of the potential impact for growing enlargement of "energy crops" on the quality condition of main channel [31], to model discharge rates and sediment quantities in rural areas [32]. Other studies have examined the effect of surface runoff in an agricultural catchment on a lagoon for estimating future sediment depositions [33] or the separate and combined impact of future climate change and of land use/land cover on river main channel using scenarios of the Intergovernmental Panel on Climate Change (IPCC) [34,35].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Water Quality in Ialomita River Basin in Relationship with Land Cover Patterns

Dunea

Brețcan

Tanislav

et al. 2020

Water

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The paper reviews the state of water quality in Ialomita River Basin (IRB), Romania, between 2007 and 2018 using the land use/land cover and basin-specific conditions effects on sediments and nutrients load. On-site monitoring was performed in two control sections of the Ialomita River, one in the upper part of the basin (near Targoviste city) and the second near the discharge into the Danube (downstream of Tandarei town). The statistical averages of water parameters for 10 years' monitoring in the control section that is close to the Ialomita River discharge in Danube were pH = 7.60 (range: 6.41-8.40), NH 4 -N = 1.20 mg/L (0.02-14.87), alkalinity = 4.12 mmol/L (1.34-6.27), NO 3 -N = 2.60 mg/L (0.08-17.30), PO 4 -P = 0.09 mg/L (0-0,31), dissolved oxygen (DO) = 8.87 mg/L (2.72-15.96), BOD 5 = 5.50 mg/L (0.01-74.71), suspended solids (TSS) = 508.32 mg/L (15.2-4457), total dissolved salts (TDS) = 733.69 mg/L (455.2-1053), and river discharge = 38.60 m 3 /s (8. . Expected mean concentration and soil and water assessment tool (SWAT) modeling have been employed in the GIS environment to extend the approach to large spatial patterns within the basin. The estimated average specific emission on the total area for nitrogen was 3.2 kg N/ha, and 0.3 kg P/ha for phosphorus highly influenced by the agricultural activities. The results are useful to raise awareness regarding water-quality degradation and the need to stop and even reverse such trends for local and national sustainable development.Water 2020, 12, 735 2 of 19 water [2]. The discharge of toxic substances, the contamination of groundwater, and the atmospheric transport of nutrients over long distances leading to eutrophication of surface waters, are some of the important processes responsible for the degradation of water quality [3].Massive pollution with organic compounds leads to increased biological oxygen demand and hypoxia, which is often accompanied by severe pathogenic contamination [4]. Eutrophication resulting from the enrichment with nutrients originating from various sources and in particular from agriculture and agro-industrial environment strongly influences the biosphere [5,6]. The over-application of fertilizers damages the ecosystems on large spaces, including soil, water and underground aquifer layers [7]. The main problems associated with intensive agriculture are salinization, nitrification, pesticide contamination and excessive erosion that produce high concentrations of colloids in flowing waters [8].Significant emissions of atmospheric pollutants and long-range transport have affected large areas, while droplets formed in the atmosphere through the combination of water with the gases produced by burning fossil fuels cause acid rain that leads to the acidification of surface waters, especially of lakes [9].Society uses natural resources in a steadily increasing rate. Human influence on nature may cause adverse consequences leading to the disturbance of the natural balance [10,11]. At the same time, technologies and approaches are being developed...

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“…soils and sediments). [48][49][50] In accordance with the illustrated results, these coefficients could be adopted to describe solidliquid extraction of carotenoids from microalgal biomass. This is not surprising if one takes into account that the chemical bonds of lutein and ⊎-carotene to the rest of microalgal biomass are similar to the bonds between organic pollutants and organic particles, which govern the adsorption and absorption interactions (e.g.…”

Section: Effect Of Freezing Storage On Carotenoid Stabilitymentioning

confidence: 72%

Sequential extraction of lutein and β‐carotene from wet microalgal biomass

Caprio

Altimari

Pagnanelli

2020

J of Chemical Tech & Biotech

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BACKGROUND: Microalgae are a promising resource to produce carotenoids for food/feed applications. However, energyintensive pre-treatments such as drying and cell destruction can hinder the sustainability of the process. Direct extraction from wet biomass may reduce energy consumption, but the residual water can reduce the effectiveness of the organic solvents used for the extraction. In this work, the extraction of lutein and ⊎-carotene from wet untreated microalgal biomass is investigated. The process includes a sequence of successive extraction stages with methanol. RESULTS: We show that the sequential extraction can effectively overcome the reduced extraction efficiency induced by the residual water in the biomass. The biomass was dehydrated during the first extraction stage, which increased the efficiency starting from the second stage. This allowed an extraction yield of >95% to be attained for both lutein and ⊎-carotene after five extraction stages. A mathematical model was developed by coupling mass balances with a linear equilibrium model, satisfactorily describing the partition of the two carotenoids between the solid and the solvent phase. By fitting the model to the data obtained by the first extraction stage, liquid-solid partition coefficients (K d) equal to 2.0 × 10 −3 and 1.1 × 10 −4 were estimated for lutein and ⊎-carotene, respectively. The K d of both carotenoids increased to ≈10 −2 during the six subsequent extraction stages without water. CONCLUSIONS: Direct solvent extraction from wet untreated microalgal biomass is a promising strategy to produce carotenoids. The described model can provide guidelines to design industrial processes.

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A review of pesticide fate and transport simulation at watershed level using SWAT: Current status and research concerns

Cited by 114 publications

References 141 publications

Optimization and validation of a QuEChERS-based method for the simultaneous environmental monitoring of 218 pesticide residues in clay loam soil

Optimization and validation of a QuEChERS-based method for the simultaneous environmental monitoring of 218 pesticide residues in clay loam soil

Evaluation of Water Quality in Ialomita River Basin in Relationship with Land Cover Patterns

Sequential extraction of lutein and β‐carotene from wet microalgal biomass

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