Sustainability, substance-flow management, and time, Part II: Temporal impact assessment (TIA) for substance-flow management

Hofmeister, Sabine; Kümmerer, Klaus

doi:10.1016/j.jenvman.2008.08.004

Cited by 8 publications

(5 citation statements)

References 28 publications

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“…1.2 Sources and Sinks Hofmeister and Kümmerer (2009) note that the separation of inputs and outputs during a process allows for their characterization as sources and sinks. Figure 1.1 presents a graphic representation of this is more detail.…”

Section: Life Cycle Interpretationmentioning

confidence: 99%

“…Thus, inputs into the system which are characterized by temporality are not currently well defined. Hofmeister and Kümmerer (2009) note that the separation of inputs and outputs during a process allows for their characterization as sources and sinks. In turn, this has led to the treatment of inputs and outputs as two wholly separate parameters or factors with no relation to each other (Ibid.).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Effects of Temporality and Spatiality Due to Aged Data in LIfe Cycle Assessments

Pryshlakivsky¹

2021

Preprint

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Life cycle assessment is a relatively new—although decades old—method for assessing the environmental impacts of goods and services. It seeks to quantify these impacts in such a manner as to facilitate informed decisions regarding different, yet equally viable, options. However, this aim must be conditional on the notion that these impacts are measured with a number of associated qualifications or caveats, two of which is subject of this work. As subject matter, temporality and spatiality in life cycle assessment are both very broad, although this dissertation focuses specifically on temporality and spatiality due to age of data. The structure of the dissertation follows three distinct phases. The first phase contextualized the subject matter and its relation towards standardization of life cycle assessment methods. In doing so, it identifies and contextualizes the subject matter. The second phase identified Greenhouse gases, Regulatory Emissions, and Energy use in Transportation 2 as an ideal model on which to assess temporality and spatiality due to age of data since it models the life cycle assessment of an assortment of different vehicles. This phase also involved data collection, and uses a platform of assessment tools including Monte Carlo simulations, analysis of variance, F tests, regression analysis, and tests for non-normality (kurtosis and skewness). Building on the second phase, the third phase moved beyond the original phases by more than doubling the amount of materials of manufacture to be studied and adding further tools for assessment, the mainstay of which are regression analyses. Overall, this study found that the use of Monte Carlo simulations and analysis of variance are useful for identifying long term variation in energy intensity of materials. F-tests were useful in identifying which materials showed effects owing to spatiality. Although not in all instances, tests for non-normality identified which circumstances merit log transformation to bring about more accurate results. Linear regression techniques were used as a posterior test to confirm the origins of the variation seen in the Monte Carlo simulations and the analysis of variation. Moving ahead, this study pointed to the need for more concerted efforts in data promulgation.

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Section: Life Cycle Interpretationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Effects of Temporality and Spatiality Due to Aged Data in LIfe Cycle Assessments

Pryshlakivsky¹

2021

Preprint

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“…small capacitors with PCB as the isolating agent. [See also Kümmerer and Hofmeister (2008) and Hofmeister and Kümmerer (2009) describing the role of time for chemical policy.] Second, scarce resources cannot be substituted by secondary raw materials as long as they are in use.…”

Section: Reasons For Shortcomings Of the Regulationsmentioning

confidence: 99%

Review of material recovery from used electric and electronic equipment-alternative options for resource conservation

Friege¹

2012

Waste Manag Res

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For waste from electric and electronic equipment, the WEEE Directive stipulates the separate collection of electric and electronic waste. As to new electric and electronic devices, the Restriction of Hazardous Substances (RoHS) Directive bans the use of certain chemicals dangerous for man and environment. From the implementation of the WEEE directive, many unsolved problems have been documented: poor collection success, emission of dangerous substances during collection and recycling, irretrievable loss of valuable metals among others. As to RoHS, data from the literature show a satisfying success. The problems identified in the process can be reduced to some basic dilemmas at the borders between waste management, product policy and chemical safety. The objectives of the WEEE Directive and the specific targets for use and recycling of appliances are not consistent. There is no focus on scarce resources. Extended producer responsibility is not sufficient to guarantee sustainable waste management. Waste management reaches its limits due to problems of implementation but also due to physical laws. A holistic approach is necessary looking at all branch points and sinks in the stream of used products and waste from electric and electronic equipment. This may be done with respect to the general rules for sustainable management of material streams covering the three dimensions of sustainable policy. The relationships between the players in the field of electric and electronic devices have to be taken into account. Most of the problems identified in the implementation process will not be solved by the current amendment of the WEEE Directive.

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“…In other words, sustainable use of soils is closely intertwined with temporal issues. However, a temporal approach is not often taken, despite the fact that it offers new insights into the assessment of environmental issues and sustainability (Kümmerer and Hofmeister 2008;Hofmeister and Kümmerer 2009). It is clear that soils and their ecosystems are characterized by a hierarchy of processes (Ulrich 1992;Brantley 2008) differentiated according to a space and time scale (O'Neill et al 1986) (table 1).…”

Section: Soils and Environmental Damagesmentioning

confidence: 99%

“…A temporal diagnosis is a valuable tool (Hofmeister and Kümmerer 2009). It may help to point out the proper measures with respect to the time scales and points in time and their results.…”

Section: Hoursmentioning

confidence: 99%

Sustainable use of soils and time

Kümmerer¹,

Held²,

Pimentel³

2010

Journal of Soil and Water Conservation

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Soils are the source of 99.7% of our food (FAO 1991(FAO to 2001. The threat to soils has increased dramatically within the last century. Temporal features of soil use and fertility are manifold. Time-related aspects are well known to soil scientists and others. Time is not only an essential factor in soil science but also in the use and protection of soils. However, for social and economic reasons, this knowledge is often not applied. The challenge in maintaining sustainable use of soils is to develop appropriate cross-disciplinary analytical methods and measures. The focus on time presented here offers such an approach. We specify temporal features that allow us to better understand the various forms of soil degradation and the full range of sustainable and unsustainable use of soils. Therefore, temporal parameters and temporal patterns, as well as other temporal features such as time scales, points in time, and their interplay are a key issue for sustainable use of soils. We use the temporal perspective for diagnosis and therapy. Problems and delays connected with planning and action towards greater sustainability in the use of soils become more transparent. To demonstrate this, we present a temporal framework and the rules based thereon.

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Sustainability, substance-flow management, and time, Part II: Temporal impact assessment (TIA) for substance-flow management

Cited by 8 publications

References 28 publications

The Effects of Temporality and Spatiality Due to Aged Data in LIfe Cycle Assessments

The Effects of Temporality and Spatiality Due to Aged Data in LIfe Cycle Assessments

Review of material recovery from used electric and electronic equipment-alternative options for resource conservation

Sustainable use of soils and time

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