A general-applicable model for estimating the binding coefficient of organic pollutants with dissolved organic matter

Li, Yi-Long; He, Wei; Wu, Renyi; Xing, Baoshan; Xu, Fu-Liu

doi:10.1016/j.scitotenv.2019.03.146

Cited by 8 publications

(3 citation statements)

References 43 publications

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“…Not surprisingly, the soil carbon content both in the solid-and solution phases is a key property in numerous models to predict the fate, bioavailability and risks of both metals, organic micropollutants and emerging contaminants including substances, like PFAS, nanoparticles and veterinary products present in soil (e.g. Vitale and Di Guardo, 2019;Li et al, 2019).…”

Section: Outlook On Scenario-analysesmentioning

confidence: 99%

Development of a conceptual framework to evaluate organic fertilisers : assessment on soil quality and agronomic, environmental and economics aspects

Schoumans

Ehlert

Hanegraaf³

et al. 2019

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Characterisation of organic fertilisers 2.1 Type designation and demarcation 2.2 Selection of organic fertilising products 2.3 Characterisation methods 2.3.1 Protocols 2.3.2 Current analytical research methods 2.4 Analytical methods in protocols and regulation 2.5 A framework for assessing the quality of organic fertilisers 2.6 Main knowledge gaps and missing methods 3 Methods to quantify effects on soil quality 3.1 Soil quality and chemical, physical and biological soil parameters 3.2 Carbon-and nitrogen dynamics in soil 3.3 Emissions from soil 3.4 Methods to quantify effects 3.4.1 Options 3.4.2 Extended modelling 3.4.3 Outlook on scenario-analyses 3.5 Relevance of organic matter dynamics in soil in relation to environmental risk assessment 3.6 Main knowledge gaps and further steps 4 Risk assessment of organic fertilisers: towards a systems approach 4.1

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Section: Outlook On Scenario-analysesmentioning

confidence: 99%

Development of a conceptual framework to evaluate organic fertilisers : assessment on soil quality and agronomic, environmental and economics aspects

Schoumans

Ehlert

Hanegraaf³

et al. 2019

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“…DOC in river water has a close impact on the dynamic of the aquatic biogeochemical cycle, light penetration, transportation of trace metals, secondary production, and the flow of nitrogen [15][16][17][18][19]. It is also considered to increase the solubility of some organic pollutants in water [20]. DOC levels change over time and space due to the complexity of catchments and aquatic ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau

You

Sillanpää

et al. 2022

Sustainability

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The carbon release and transport in rivers are expected to increase in a warming climate with enhanced melting. We present a continuous dataset of DOC in the river, precipitation, and groundwater, including air temperature, discharge, and precipitation in the source region of the Yangtze River (SRYR). Our study shows that the average concentrations of DOC in the three end-members are characterized as the sequence of groundwater > precipitation > river, which is related to the water volume, cycle period, and river flow speed. The seasonality of DOC in the river is observed as the obvious bimodal structure at Tuotuohe (TTH) and Zhimenda (ZMD) gauging stations. The highest concentration appears in July (2.4 mg L−1 at TTH and 2.1 mg L−1 at ZMD) and the secondary high value (2.2 mg L−1 at TTH 1.9 mg L−1 at ZMD) emerges from August to September. It is estimated that 459 and 6751 tons of DOC are transported by the river at TTH and ZMD, respectively. Although the wet deposition flux of DOC is nearly ten times higher than the river flux, riverine DOC still primarily originates from soil erosion of the basin rather than precipitation settlement. Riverine DOC fluxes are positively correlated with discharge, suggesting DOC fluxes are likely to increase in the future. Our findings highlight that permafrost degradation and glacier retreat have a great effect on DOC concentration in rivers and may become increasingly important for regional biogeochemical cycles.

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“…It also has a close impact on dominant mechanisms leading the dynamic of the aquatic biogeochemical cycle or on other factors including light penetration, transportation of trace metals, secondary production, or the flow of nitrogen [3][4][5][6][7][8]. Due to the formation of DOM organic pollutant colloid, DOC is considered to increase the solubility of some organic pollutants, thus affecting the distribution of organic pollutants in water [9]. Every year, rivers probably carry up to 0.38-0.5 Gt of organic carbon (OC) to the oceans globally, and 55% of the carried OC is in the dissolved form [10,11].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variations in Dissolved Organic Carbon in the Source Region of the Yellow River on the Tibetan Plateau

You

2021

Water

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Rivers as the link between terrestrial ecosystems and oceans have been demonstrated to transport a large amount of dissolved organic carbon (DOC) to downstream ecosystems. In the source region of the Yellow River (SRYR), climate warming has resulted in the rapid retreat of glaciers and permafrost, which has raised discussion on whether DOC production will increase significantly. Here, we present three-year data of DOC concentrations in river water and precipitation, explore the deposition and transport processes of DOC from SRYR. Results show that annual mean concentrations of riverine DOC ranged from 2.03 to 2.34 mg/L, with an average of 2.21 mg/L. Its seasonal variation is characterized by the highest concentration in spring and summer (2.65 mg/L and 2.62 mg/L, respectively), followed by autumn (1.95 mg/L), and the lowest in winter (1.44 mg/L), which is closely related to changes in river runoff under the influence of precipitation and temperature. The average concentration of DOC in precipitation (2.18 mg/L) is comparable with riverine DOC, while the value is inversely related to precipitation amount and is considered to be the result of precipitation dilution. DOC deposition flux in precipitation that is affected by both precipitation amount and DOC concentration roughly was 86,080, 105,804, and 73,072 tons/yr from 2013 to 2015, respectively. DOC flux delivered by the river ranged from 24,629 to 37,539 tons/yr and was dominated by river discharge. Although permafrost degradation in SRYR is increasing, DOC yield is not as significant as previously assumed and is much less than other large rivers in the world.

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A general-applicable model for estimating the binding coefficient of organic pollutants with dissolved organic matter

Cited by 8 publications

References 43 publications

Development of a conceptual framework to evaluate organic fertilisers : assessment on soil quality and agronomic, environmental and economics aspects

Development of a conceptual framework to evaluate organic fertilisers : assessment on soil quality and agronomic, environmental and economics aspects

Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau

Seasonal Variations in Dissolved Organic Carbon in the Source Region of the Yellow River on the Tibetan Plateau

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