Category: New buildings
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G-30 (Buildings) / G-28 (Products) Land use indicator
Aspect G-30 (Buildings) / G-28 (Products) Land use indicator Description Land-use change is linked to human activities such as the exploitation of land for agricultural, industrial, residential, recreational, or other purposes. Currently, several LCIA methods exist, providing both midpoint and endpoint characterization factors. According to the ILCD Handbook, the midpoint characterization factor for land use,…
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G-31 (Buildings) / G-29 (Products) Biodiversity indicator
Aspect G-31 (Buildings) / G-29 (Products) Biodiversity indicator Description The loss of species and their diversity caused by destruction of their habitat has become one of the pivotal topics of environmental political actions in recent years. For years the scientific community has been working on completing a portfolio of considered environmental impacts, including taking biodiversity…
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G-32 (Buildings) / G-30 (Products) Human toxicity and ecotoxicity indicators
Aspect G-32 (Buildings) / G-30 (Products) Human toxicity and ecotoxicity indicators Description LCIA methodologies usually include midpoint or endpoint indicators for three area of protection: resources, human health and ecosystem. For the two last areas of protection, different indicators are currently available to assess the ecotoxicity and toxicity effects related to a product or a…
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G-33 (Buildings) / G-31 (Products) Ionizing radiation indicator
Aspect G-33 (Buildings) / G-31 (Products) Ionizing radiation indicator Description ‘Ionizing radiation’ is an impact category in LCA related to the damage to human health and ecosystems that is linked to the emissions of radionuclides throughout a product or building life cycle. In the building sector, they can be linked to the use of nuclear…
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G-34 (Buildings) / G-32 (Products) Water consumption as a new impact category
Aspect G-34 (Buildings) / G-32 (Products) Water consumption as a new impact category Description The water consumed during the life cycle of a product or a building can have an impact on the environment. This impact actually depends on the geographical location. For example, in some regions of the world, the same amount of consumed…
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5.5 Interpretation.
5.5 Interpretation. G-35 Normalization of indicators G-36 Weighting of indicators G-37 Uncertainty analysis for comparative assertion. G-38 Sensitivity analysis G-39 Scenario analysis
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G-35 (Buildings) / G-33 (Products) Normalization of indicators
Aspect G-35 (Buildings) / G-33 (Products) Normalization of indicators Description According to the ILCD Handbook, the normalization step refers to the expression of indicators (LCIA, midpoints or endpoints) relative to a common reference by dividing the indicator results by the respective reference value. Different normalization factors can be applied in practice to help the interpretation…
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G-36 (Buildings) / G-34 (Products) Weighting of indicators
Aspect G-36 (Buildings) / G-34 (Products) Weighting of indicators Description According to the ILCD Handbook, the weighting step refers to an optional step of the ISO 14044 standard to support the interpretation of the profile as a fully aggregated result. Generally speaking, it is a subsequent step to the normalization of indicators (see aspect ‘normalization’),…
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G-37 (Buildings) / G-35 (Products) Uncertainty analysis for comparative assertion
Aspect G-37 (Buildings) / G-35 (Products) Uncertainty analysis for comparative assertion Description An uncertainty analysis measures the variability of the data values: for example, a low variance leads to a high precision. Because of the long supply chain of building products and buildings as a whole, uncertainties are aggregated over the life cycle. Following [Huijbregts…
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G-38 (Buildings) / G-36 (Products) Sensitivity analysis
Aspect G-38 (Buildings) / G-36 (Products) Sensitivity analysis Description According to the ILCD Handbook, the goal of a sensitivity analysis is to assess the reliability of the study by adjusting the main parameters to see how this affects the final results. It is part of the interpretation step, and is generally used together with complementary…