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Papers by Jesper Knutsson

The HSB Habitation Living Lab is a 29 apartment residential complex built on the university campu... more The HSB Habitation Living Lab is a 29 apartment residential complex built on the university campus. Some 32 students have their permanent residence in the lab, which is also an open sustainability research and innovation platform. The present data set contains one month of disaggredated water consumption data and a total of 20535 rows of data. Water consumption is measured for individual micro-consumption points. 24 of the apartments are organized in four clusters with six studio apartments, where each apartment has it own kitchen box and private WC, and shares a common kitchen area and two bathrooms. Apart from this there are five apartments consisting of 2-4 rooms each. The dwellers are mainly students in their early-mid twenties. No detailed demographics are available. The following fields are used: time: the time of the consumption in 24h format day_of_month: day of the month (1-31) weekday: weekday name (monday-sunday) value: the reported consumption, in cubic meters. room_id: ...

Copyright © 2014 Jesper Knutsson et al.This is an open access article distributed under theCreati... more Copyright © 2014 Jesper Knutsson et al.This is an open access article distributed under theCreative CommonsAttribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Diffusion-based passive samplers are increasingly used for water quality monitoring. While the overall method robustness and reproducibility for passive samplers in water are widely reported, there has been a lack of a detailed description of uncertainty sources. In this paper an uncertainty budget for the determination of fully labile Cu in water using a DGT passive sampler is presented. Uncertainty from the estimation of effective cross-sectional diffusion area and the instrumental determination of accumulated mass of analyte are the most significant sources of uncertainty, while uncertainties from contamination and the estimation of diffusion coefficient are negligible. The results presented highlight issues with passive samplers wh...

Household consumption is the ultimate driver for all production in our economies, and a significa... more Household consumption is the ultimate driver for all production in our economies, and a significant part is direct consumption that takes place within physical boundaries of the household, which we call the home. Important consumption categories include utilities like water, electricity, heating and cooling, but also the food we eat and the clothes we wear. To facilitate sustainable innovation in the built environment, reducing innovation cost and product time to market a co-creation open innovation approach is proposed, which is expected to lower thresholds for new innovation project for all actors, and in particular small to medium enterprises (SME's). In the Habitation Lab academia, public bodies, industry and users come together to form a quadruple helix of innovation. The open innovation process involves multiple stakeholders, and end users take on the role not only as test subjects, but also as active contributors and co-creators of new products and services. A newly built...

The use of biomass as a renewable fuel for production of heat and electricity is regarded as a ke... more The use of biomass as a renewable fuel for production of heat and electricity is regarded as a key to reduce fossil fuel dependency, and thereby to reduce net CO2 emissions. Fluidized bed (FB) technology is widely accepted as the most energy efficient process for thermal conversion of biomass. One of the often-mentioned drawbacks is the building up of agglomerates within the process because of bed material-ash interaction. To avoid unplanned operational stops due to agglomeration, bed material is continuously replenished and spent bed material is removed in the form of bottom ash. The spent bed material cannot readily be reused and is usually deposited or used as construction filler material. Sand is the primary choice for bed material but novel bed materials are being tested to improve biomass conversion. Even though agglomeration is reduced and the energy efficiency of the conversion process is improved, bottom and fly ash are still being generated and need to be managed. To conce...

Increasing amounts of heavy metals is a growing societal problem. By using ion exchangers, heavy ... more Increasing amounts of heavy metals is a growing societal problem. By using ion exchangers, heavy metals can be captured and thereby their environmental impact can be decreased. Microalgae have been shown to adsorb metals; the algal cell wall contains functional groups, such as amino-, carboxyl-, hydroxyl- and sulphate groups, to which the various metal ions could bind [1]. This makes them suitable as a sustainable alternative for environmental remediation. Removal of pollutants with algae is called phycoremediation and is well studied for e.g. waste water [2]. Within this project, we study the potential of microalgae for remediating heavy metals in low concentration originating from leaching of combustion ashes, by measuring the metal binding capacity by three phytoplankton species: Chlorella sauna, Dunaliella sauna and Scendesmus obliquus. The heavy metals assessed are divalent ions of copper (Cu), cadmium (Cd), zinc (Zn), mercury (Hg) and lead (Pb). The effect of pH has been deter...

Table S1 Mean water temperature (from continuous measurement) for the various passive sampler exp... more Table S1 Mean water temperature (from continuous measurement) for the various passive sampler exposure periods. Table S2 Major components measured in Meuse river water at the twelve spot sampling events during the trial. Table S3 Major components measured in Meuse river water in the weekly composite samples taken during the trial. Table S4 Diffusion coefficients of metals for the DGT (OP) hydrogel. Table S5 Diffusion coefficients of metals for the DGT (RP) hydrogel. Table S6 Metal uptake rates for the ChemcatcherTM passive sampler. Figure S1 Figure S1. Comparison of time-weighted average concentrations of Cd (a), Cu (c), Ni (e), Pb (g) and Zn (i) obtained using DGT (OP) for exposures of 7, 14 and 28 days, with mean total ( , ) and 0.45 μmfiltered ( , ) metal concentrations measured in spot (Team A) and composite (Team B) water samples; and with concentrations of Cd (b), Cu (d), Ni (f), Pb (h) and Zn (j) obtained using Visual MINTEQ speciation modelling (Key: inorganic( ), and inorga...

Bulgarian Chemical Communications, 2012

A simple and rapid field sampling procedure was developed for the speciation of dissolved Fe(II) ... more A simple and rapid field sampling procedure was developed for the speciation of dissolved Fe(II) and Fe(III) in waters. The determination of iron species was possible by selective batch solid phase extraction of Fe(III) using chelating resin Chelex-100 in H+ form, sample acidity range of pH 1.5-2.5, elution with 0.03 mol L-1 NH4-EDTA, and detection of Fe(III) by flame or electrothermal atomic absorption spectrometry (ETAAS). The concentration of Fe(II) was determined in the solution above the resin by direct ETAAS or after adsorption on Chelex-100 in NH4+ form without the need for preoxidation of Fe(II) to Fe(III). Water samples were collected in situ and filtered by passing them through a syringe filter (0.45 mu m). The batch procedure was performed at the field and then, the tubes containing the resins with the loaded analytes were returned to the laboratory where the iron species were eluted and determined. Field sampling prevents changes in the oxidation state of iron. The effec...

To decrease the CO2 levels in the atmosphere without compromising with the electricity production... more To decrease the CO2 levels in the atmosphere without compromising with the electricity production and energy security two different issues have to be addressed – replacement of the current use of fossil fuels with CO2-neutral fuels and increase in the efficiency of the existing processes for thermal conversion. Fluidized bed (FB) thermal conversion is usually considered as the most energy efficient choice when biomass and municipal solid waste are used as fuels. The bed material that is used commonly within FB boilers is sand. With the demand to increase the efficiency of the electricity generation process, alternative bed materials have been tested. These materials are usually naturally occurring minerals containing transient oxides, most often Fe or Mn. The present paper presents three naturally occurring minerals that may be utilized as bed materials – olivine, ilmenite and manganese ore, while comparing with industrial silica sand for reference. The feasibility of their utilizat...

Resources, Conservation & Recycling Advances, 2021

Abstract Globally an increasing number of people are facing water scarcity. To address the challe... more Abstract Globally an increasing number of people are facing water scarcity. To address the challenge, measures to reduce water demand are investigated in the world. In the present paper, a novel approach to reuse bathroom graywater for shower and bathroom sink hot water is investigated. The investigation focuses on water and energy savings, water treatment, economic benefit and investigates the main actors and institutions that are involved. The main results are that there is significant potential for water and energy savings with a positive economic benefit. Water savings of domestic hot water up to 91 % and energy savings up to 55 % were observed. The investigated treatment plant produces recycled graywater with a quality close to drinking water standards. The investigation also presents that the reason for the positive economic benefit will depend on the utility tariffs. Therefore, two locations with different utility rate structures were investigated, Gothenburg, Sweden and Settle, USA. In Gothenburg, the utility cost for energy was the driver of economic benefit and in Seattle it was the water and wastewater cost that was the driver. The return of investment for the system and installation was shown to be 3.7 years in Gothenburg and 2.4 years in Seattle.

International Journal of Energy and Water Resources, 2020

Municipal drinking water supplies are under great stress globally, and one way to mitigate the pr... more Municipal drinking water supplies are under great stress globally, and one way to mitigate the problems is the reutilization of wastewater in various settings. In this paper, a greywater reuse scheme and the impact of system design and configuration on water and energy savings are investigated. The objective of the paper was to investigate the impact of hydraulic design and performance of a greywater treatment and reuse system on water and energy savings. A simulation model was created based on real, disaggregated water consumption data that predicts the reuse potential. Three scenarios were investigated; (1) greywater collection from the bathroom and reuse for toilet flushing, (2) greywater collection from bathroom sinks and showers, and reuse as hot water for sinks and showers, and (3) a combination of (1) and (2) where greywater collection from bathroom sinks and showers is used for toilet flushing, sinks and shower. The results indicate hot water reductions between 55.6 and 58.2...

The GoBiGas plant, which comprises a 32-MWth dual fluidized bed gasifier, was constructed as a de... more The GoBiGas plant, which comprises a 32-MWth dual fluidized bed gasifier, was constructed as a demonstration unit for converting biomass to biomethane via gasification. On several occasions during the commissioning of the plant, low activity of the olivine bed generated a high content of tar in the produced gas, which was deleterious to the downstream equipment. The problem was attributed to a deficiency of ash constituents, and the solution was to control activation of the bed material through the addition of K2CO3 to the process. This enabled extended operational periods without tar-related issues. The achieved activity could be lost during interrupted operation at which time the activation procedure had to be repeated. In the present paper analysis of the bed material samples extracted upon activation and after loss of activity using Scanning Electron Microscopy coupled with Energy Dispersive X-ray spectroscopy (SEM-EDS) showed similar morphologies for the ash layers formed around the olivine particles. The observed differences mainly related to the distributions of potassium (K) across the layers. Furthermore, surface analysis showed differences in K speciation within the outer regions. K solubility tests and X-ray photoelectron spectroscopy analyses indicated that K was present as an oxide/hydroxide rather than as a silicate on the surface of the active olivine. The presented results are of major relevance for the operation of dual fluidized bed gasifiers with fuels that are potassium-lean when ash components need to be supplied as additives

J. of Design Research

This paper explores how the design of domestic appliances influences people's energy use during e... more This paper explores how the design of domestic appliances influences people's energy use during everyday activities. Drawing on findings from an interview study with 81 informants, a variety of design characteristics were uncovered, which set preconditions for use that in different ways impede or support energy conservation. The identified characteristics concerned not only appliances' operative functions but also their interactive and communicative functions as well as people's underlying motives for using specific appliances. Addressing the full range of characteristics during the development of new appliances will highlight a variety of design opportunities 44 A. Selvefors et al. and increase the possibilities for developing appliances that support people to go about their everyday activities in less energy-reliant ways.

Doktorsavhandlingar vid Chalmers tekniska högskola Ny serie nr 3535

Trac, 2005

We review the state of the art in using passive sampling technology for environmental monitoring ... more We review the state of the art in using passive sampling technology for environmental monitoring of waterborne organic and inorganic pollutants. We discuss strategies for sampler design, calibration, in situ sampling and quality-control issues, and advantages ...

The atmospheric dispersion model software HYSPLIT (HYbrid Single-Particle Lagrangian Integrated T... more The atmospheric dispersion model software HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) was used to simulate the dispersion and deposition of airborne particulate PGE (Platinum Group Elements) emissions from two major Russian production facilities. Proxy data was used to establish two emission scenarios and the short range deposition output from the model was found to agree well with previously published data for Pt and Pd in snow pack samples. 100 days of emission, dispersion and deposition simulations were used to calculate a yearly deposition rate of PGE at the Summit, central Greenland. Russian PGE production contributes approximately 90 and 380 kg to the annual global flux of Pt and Pd respectively making it a smaller emitter than automotive catalytic converters, but still significant source. Most of the deposition of Russian smelter derived Pt and Pd emissions were found to occur locally. The smelter derived deposition on Greenland was found to be up to 0.008% (Platinum) and 0.034% (Palladium) of the total deposition of PGE, if all production is assumed to occur in Monchegorsk and 0.5 μm particles. For the Taymir scenario this share is less (0.3 ppm and 0.4 respectively, 5 μm particles).

The atmospheric dispersion model software HYSPLIT (HYbrid Single-Particle Lagrangian Integrated T... more The atmospheric dispersion model software HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) was used to simulate the dispersion and deposition of airborne particulate PGE (Platinum Group Elements) emissions from two major Russian production facilities. Proxy data was used to establish two emission scenarios and the short range deposition output from the model was found to agree well with previously published data for Pt and Pd in snow pack samples. 100 days of emission, dispersion and deposition simulations were used to calculate a yearly deposition rate of PGE at the Summit, central Greenland. Russian PGE production contributes approximately 90 and 380 kg to the annual global flux of Pt and Pd respectively making it a smaller emitter than automotive catalytic converters, but still significant source. Most of the deposition of Russian smelter derived Pt and Pd emissions were found to occur locally. The smelter derived deposition on Greenland was found to be up to 0.008% (Platinum) and 0.034% (Palladium) of the total deposition of PGE, if all production is assumed to occur in Monchegorsk and 0.5 μm particles. For the Taymir scenario this share is less (0.3 ppm and 0.4 respectively, 5 μm particles).

The HSB Habitation Living Lab is a 29 apartment residential complex built on the university campu... more The HSB Habitation Living Lab is a 29 apartment residential complex built on the university campus. Some 32 students have their permanent residence in the lab, which is also an open sustainability research and innovation platform. The present data set contains one month of disaggredated water consumption data and a total of 20535 rows of data. Water consumption is measured for individual micro-consumption points. 24 of the apartments are organized in four clusters with six studio apartments, where each apartment has it own kitchen box and private WC, and shares a common kitchen area and two bathrooms. Apart from this there are five apartments consisting of 2-4 rooms each. The dwellers are mainly students in their early-mid twenties. No detailed demographics are available. The following fields are used: time: the time of the consumption in 24h format day_of_month: day of the month (1-31) weekday: weekday name (monday-sunday) value: the reported consumption, in cubic meters. room_id: ...

Copyright © 2014 Jesper Knutsson et al.This is an open access article distributed under theCreati... more Copyright © 2014 Jesper Knutsson et al.This is an open access article distributed under theCreative CommonsAttribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Diffusion-based passive samplers are increasingly used for water quality monitoring. While the overall method robustness and reproducibility for passive samplers in water are widely reported, there has been a lack of a detailed description of uncertainty sources. In this paper an uncertainty budget for the determination of fully labile Cu in water using a DGT passive sampler is presented. Uncertainty from the estimation of effective cross-sectional diffusion area and the instrumental determination of accumulated mass of analyte are the most significant sources of uncertainty, while uncertainties from contamination and the estimation of diffusion coefficient are negligible. The results presented highlight issues with passive samplers wh...

Household consumption is the ultimate driver for all production in our economies, and a significa... more Household consumption is the ultimate driver for all production in our economies, and a significant part is direct consumption that takes place within physical boundaries of the household, which we call the home. Important consumption categories include utilities like water, electricity, heating and cooling, but also the food we eat and the clothes we wear. To facilitate sustainable innovation in the built environment, reducing innovation cost and product time to market a co-creation open innovation approach is proposed, which is expected to lower thresholds for new innovation project for all actors, and in particular small to medium enterprises (SME's). In the Habitation Lab academia, public bodies, industry and users come together to form a quadruple helix of innovation. The open innovation process involves multiple stakeholders, and end users take on the role not only as test subjects, but also as active contributors and co-creators of new products and services. A newly built...

The use of biomass as a renewable fuel for production of heat and electricity is regarded as a ke... more The use of biomass as a renewable fuel for production of heat and electricity is regarded as a key to reduce fossil fuel dependency, and thereby to reduce net CO2 emissions. Fluidized bed (FB) technology is widely accepted as the most energy efficient process for thermal conversion of biomass. One of the often-mentioned drawbacks is the building up of agglomerates within the process because of bed material-ash interaction. To avoid unplanned operational stops due to agglomeration, bed material is continuously replenished and spent bed material is removed in the form of bottom ash. The spent bed material cannot readily be reused and is usually deposited or used as construction filler material. Sand is the primary choice for bed material but novel bed materials are being tested to improve biomass conversion. Even though agglomeration is reduced and the energy efficiency of the conversion process is improved, bottom and fly ash are still being generated and need to be managed. To conce...

Increasing amounts of heavy metals is a growing societal problem. By using ion exchangers, heavy ... more Increasing amounts of heavy metals is a growing societal problem. By using ion exchangers, heavy metals can be captured and thereby their environmental impact can be decreased. Microalgae have been shown to adsorb metals; the algal cell wall contains functional groups, such as amino-, carboxyl-, hydroxyl- and sulphate groups, to which the various metal ions could bind [1]. This makes them suitable as a sustainable alternative for environmental remediation. Removal of pollutants with algae is called phycoremediation and is well studied for e.g. waste water [2]. Within this project, we study the potential of microalgae for remediating heavy metals in low concentration originating from leaching of combustion ashes, by measuring the metal binding capacity by three phytoplankton species: Chlorella sauna, Dunaliella sauna and Scendesmus obliquus. The heavy metals assessed are divalent ions of copper (Cu), cadmium (Cd), zinc (Zn), mercury (Hg) and lead (Pb). The effect of pH has been deter...

Table S1 Mean water temperature (from continuous measurement) for the various passive sampler exp... more Table S1 Mean water temperature (from continuous measurement) for the various passive sampler exposure periods. Table S2 Major components measured in Meuse river water at the twelve spot sampling events during the trial. Table S3 Major components measured in Meuse river water in the weekly composite samples taken during the trial. Table S4 Diffusion coefficients of metals for the DGT (OP) hydrogel. Table S5 Diffusion coefficients of metals for the DGT (RP) hydrogel. Table S6 Metal uptake rates for the ChemcatcherTM passive sampler. Figure S1 Figure S1. Comparison of time-weighted average concentrations of Cd (a), Cu (c), Ni (e), Pb (g) and Zn (i) obtained using DGT (OP) for exposures of 7, 14 and 28 days, with mean total ( , ) and 0.45 μmfiltered ( , ) metal concentrations measured in spot (Team A) and composite (Team B) water samples; and with concentrations of Cd (b), Cu (d), Ni (f), Pb (h) and Zn (j) obtained using Visual MINTEQ speciation modelling (Key: inorganic( ), and inorga...

Bulgarian Chemical Communications, 2012

A simple and rapid field sampling procedure was developed for the speciation of dissolved Fe(II) ... more A simple and rapid field sampling procedure was developed for the speciation of dissolved Fe(II) and Fe(III) in waters. The determination of iron species was possible by selective batch solid phase extraction of Fe(III) using chelating resin Chelex-100 in H+ form, sample acidity range of pH 1.5-2.5, elution with 0.03 mol L-1 NH4-EDTA, and detection of Fe(III) by flame or electrothermal atomic absorption spectrometry (ETAAS). The concentration of Fe(II) was determined in the solution above the resin by direct ETAAS or after adsorption on Chelex-100 in NH4+ form without the need for preoxidation of Fe(II) to Fe(III). Water samples were collected in situ and filtered by passing them through a syringe filter (0.45 mu m). The batch procedure was performed at the field and then, the tubes containing the resins with the loaded analytes were returned to the laboratory where the iron species were eluted and determined. Field sampling prevents changes in the oxidation state of iron. The effec...

To decrease the CO2 levels in the atmosphere without compromising with the electricity production... more To decrease the CO2 levels in the atmosphere without compromising with the electricity production and energy security two different issues have to be addressed – replacement of the current use of fossil fuels with CO2-neutral fuels and increase in the efficiency of the existing processes for thermal conversion. Fluidized bed (FB) thermal conversion is usually considered as the most energy efficient choice when biomass and municipal solid waste are used as fuels. The bed material that is used commonly within FB boilers is sand. With the demand to increase the efficiency of the electricity generation process, alternative bed materials have been tested. These materials are usually naturally occurring minerals containing transient oxides, most often Fe or Mn. The present paper presents three naturally occurring minerals that may be utilized as bed materials – olivine, ilmenite and manganese ore, while comparing with industrial silica sand for reference. The feasibility of their utilizat...

Resources, Conservation & Recycling Advances, 2021

Abstract Globally an increasing number of people are facing water scarcity. To address the challe... more Abstract Globally an increasing number of people are facing water scarcity. To address the challenge, measures to reduce water demand are investigated in the world. In the present paper, a novel approach to reuse bathroom graywater for shower and bathroom sink hot water is investigated. The investigation focuses on water and energy savings, water treatment, economic benefit and investigates the main actors and institutions that are involved. The main results are that there is significant potential for water and energy savings with a positive economic benefit. Water savings of domestic hot water up to 91 % and energy savings up to 55 % were observed. The investigated treatment plant produces recycled graywater with a quality close to drinking water standards. The investigation also presents that the reason for the positive economic benefit will depend on the utility tariffs. Therefore, two locations with different utility rate structures were investigated, Gothenburg, Sweden and Settle, USA. In Gothenburg, the utility cost for energy was the driver of economic benefit and in Seattle it was the water and wastewater cost that was the driver. The return of investment for the system and installation was shown to be 3.7 years in Gothenburg and 2.4 years in Seattle.

International Journal of Energy and Water Resources, 2020

Municipal drinking water supplies are under great stress globally, and one way to mitigate the pr... more Municipal drinking water supplies are under great stress globally, and one way to mitigate the problems is the reutilization of wastewater in various settings. In this paper, a greywater reuse scheme and the impact of system design and configuration on water and energy savings are investigated. The objective of the paper was to investigate the impact of hydraulic design and performance of a greywater treatment and reuse system on water and energy savings. A simulation model was created based on real, disaggregated water consumption data that predicts the reuse potential. Three scenarios were investigated; (1) greywater collection from the bathroom and reuse for toilet flushing, (2) greywater collection from bathroom sinks and showers, and reuse as hot water for sinks and showers, and (3) a combination of (1) and (2) where greywater collection from bathroom sinks and showers is used for toilet flushing, sinks and shower. The results indicate hot water reductions between 55.6 and 58.2...

The GoBiGas plant, which comprises a 32-MWth dual fluidized bed gasifier, was constructed as a de... more The GoBiGas plant, which comprises a 32-MWth dual fluidized bed gasifier, was constructed as a demonstration unit for converting biomass to biomethane via gasification. On several occasions during the commissioning of the plant, low activity of the olivine bed generated a high content of tar in the produced gas, which was deleterious to the downstream equipment. The problem was attributed to a deficiency of ash constituents, and the solution was to control activation of the bed material through the addition of K2CO3 to the process. This enabled extended operational periods without tar-related issues. The achieved activity could be lost during interrupted operation at which time the activation procedure had to be repeated. In the present paper analysis of the bed material samples extracted upon activation and after loss of activity using Scanning Electron Microscopy coupled with Energy Dispersive X-ray spectroscopy (SEM-EDS) showed similar morphologies for the ash layers formed around the olivine particles. The observed differences mainly related to the distributions of potassium (K) across the layers. Furthermore, surface analysis showed differences in K speciation within the outer regions. K solubility tests and X-ray photoelectron spectroscopy analyses indicated that K was present as an oxide/hydroxide rather than as a silicate on the surface of the active olivine. The presented results are of major relevance for the operation of dual fluidized bed gasifiers with fuels that are potassium-lean when ash components need to be supplied as additives

J. of Design Research

This paper explores how the design of domestic appliances influences people's energy use during e... more This paper explores how the design of domestic appliances influences people's energy use during everyday activities. Drawing on findings from an interview study with 81 informants, a variety of design characteristics were uncovered, which set preconditions for use that in different ways impede or support energy conservation. The identified characteristics concerned not only appliances' operative functions but also their interactive and communicative functions as well as people's underlying motives for using specific appliances. Addressing the full range of characteristics during the development of new appliances will highlight a variety of design opportunities 44 A. Selvefors et al. and increase the possibilities for developing appliances that support people to go about their everyday activities in less energy-reliant ways.

Doktorsavhandlingar vid Chalmers tekniska högskola Ny serie nr 3535

Trac, 2005

We review the state of the art in using passive sampling technology for environmental monitoring ... more We review the state of the art in using passive sampling technology for environmental monitoring of waterborne organic and inorganic pollutants. We discuss strategies for sampler design, calibration, in situ sampling and quality-control issues, and advantages ...

The atmospheric dispersion model software HYSPLIT (HYbrid Single-Particle Lagrangian Integrated T... more The atmospheric dispersion model software HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) was used to simulate the dispersion and deposition of airborne particulate PGE (Platinum Group Elements) emissions from two major Russian production facilities. Proxy data was used to establish two emission scenarios and the short range deposition output from the model was found to agree well with previously published data for Pt and Pd in snow pack samples. 100 days of emission, dispersion and deposition simulations were used to calculate a yearly deposition rate of PGE at the Summit, central Greenland. Russian PGE production contributes approximately 90 and 380 kg to the annual global flux of Pt and Pd respectively making it a smaller emitter than automotive catalytic converters, but still significant source. Most of the deposition of Russian smelter derived Pt and Pd emissions were found to occur locally. The smelter derived deposition on Greenland was found to be up to 0.008% (Platinum) and 0.034% (Palladium) of the total deposition of PGE, if all production is assumed to occur in Monchegorsk and 0.5 μm particles. For the Taymir scenario this share is less (0.3 ppm and 0.4 respectively, 5 μm particles).

The atmospheric dispersion model software HYSPLIT (HYbrid Single-Particle Lagrangian Integrated T... more The atmospheric dispersion model software HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) was used to simulate the dispersion and deposition of airborne particulate PGE (Platinum Group Elements) emissions from two major Russian production facilities. Proxy data was used to establish two emission scenarios and the short range deposition output from the model was found to agree well with previously published data for Pt and Pd in snow pack samples. 100 days of emission, dispersion and deposition simulations were used to calculate a yearly deposition rate of PGE at the Summit, central Greenland. Russian PGE production contributes approximately 90 and 380 kg to the annual global flux of Pt and Pd respectively making it a smaller emitter than automotive catalytic converters, but still significant source. Most of the deposition of Russian smelter derived Pt and Pd emissions were found to occur locally. The smelter derived deposition on Greenland was found to be up to 0.008% (Platinum) and 0.034% (Palladium) of the total deposition of PGE, if all production is assumed to occur in Monchegorsk and 0.5 μm particles. For the Taymir scenario this share is less (0.3 ppm and 0.4 respectively, 5 μm particles).