Gregor Wernet's research while affiliated with Molecular Partners AG, Zurich, Switzerland and other places

Publications (28)

Technical Report
Full-text available
El objetivo de esta publicación es dar soporte y proporcionar directrices para ayudar a los países a desarrollar e implementar hojas de ruta y planes de acción para establecer bases de datos nacionales de ACV. Las hojas de ruta son una herramienta práctica para fortalecer y alinear el apoyo y los esfuerzos que se requieren por parte de los diferent...
Technical Report
Full-text available
The goal of this publication is to support countries in developing and implementing roadmaps and action plans to establishing national LCA databases. Such roadmaps are a practical tool to raise and align the support and multi-stakeholder efforts required to generate, structure, and disseminate LCA data while pursuing interoperability with other dat...
Article
Full-text available
Purpose Improving the quality and quantity of unit process datasets in Life Cycle Inventory (LCI) databases affects every LCA they are used in. However, improvements in data quality and quantity are so far rather directed by the external supply of data and situation-driven requirements instead of systematic choices guided by structural dependencies...
Article
Full-text available
Purpose: Elementary flows are essential components of data used for life cycle assessment. A standard list is not used across all sources, as data providers now manage these flows independently. Elementary flows must be consistent across a life cycle inventory for accurate inventory analysis and must correspond with impact methods for impact asses...
Article
Environmental footprints are increasingly used to quantify and compare environmental impacts of for example products, technologies, households, or nations. This has resulted in a multitude of footprint indicators, ranging from relatively simple measures of resource use (water, energy, materials) to integrated measures of eventual damage (for exampl...
Article
The 62nd life cycle assessment (LCA) forum was held on 9 September 2016 to discuss the state of research and application with regard to consequential life cycle assessment. This conference report presents the highlights of the LCA forum. The state of the art of consequential LCA was presented from different viewpoints. It was pointed out that conse...
Article
Full-text available
The largest Life Cycle Inventory (LCI) databases contain about 10,000 unit process datasets. Assuming that updating one dataset would, on average, require one working day, then updating the entire database would roughly require the continuous work of five workers for ten years. Methods are therefore needed to prioritize datasets to be updated, and...
Article
Full-text available
Purpose Version 3 of ecoinvent includes more data, new modeling principles, and, for the first time, several system models: the “Allocation, cut-off by classification” (Cut-off) system model, which replicates the modeling principles of version 2, and two newly introduced models called “Allocation at the point of substitution” (APOS) and “Consequent...
Article
Full-text available
Purpose Good background data are an important requirement in LCA. Practitioners generally make use of LCI databases for such data, and the ecoinvent database is the largest transparent unit-process LCI database worldwide. Since its first release in 2003, it has been continuously updated, and version 3 was published in 2013. The release of version 3...
Technical Report
Full-text available
This report covers the changes to the ecoinvent database between version 3.1, released in 2014 and version 3.2, released in 2015. It describes both the database-wide changes that affect the whole database as well as the specific changes in the different sectors. These changes consist in the addition of new datasets, in the deletion of outdated ones...
Article
Purpose Mixtures of organic chemicals are a part of virtually all life cycles, but LCI data exist for only relatively few chemicals. Thus, estimation methods are required. However, these are often either very time-consuming or deliver results of low quality. This article compares existing and new methods in two scenarios and recommends a tiered app...
Article
In many cases, policy makers and laymen perceive harmful emissions from chemical plants as the most important source of environmental impacts in chemical production. As a result, regulations and environmental efforts have tended to focus on this area. Concerns about energy use and greenhouse gas emissions, however, are increasing in all industrial...
Article
Full-text available
Background, aim, and scopePharmaceuticals have been recently discussed in the press and literature regarding their occurrence in rivers and lakes, mostly due to emissions after use. The production of active pharmaceutical ingredients (APIs) has been less analyzed for environmental impacts. In this work, a life cycle assessment (LCA) of the producti...
Article
The chemical industry is increasing its efforts to reduce the environmental burdens of chemical production. One focus is to implement energy-efficient processes and green technologies early in the process design to maximize environmental efficiency and to reduce costs. However, as data on many chemical products are scarce, many sustainability studi...
Article
Background, aim, and scopeOrganic solvents are used in large quantities in the chemical, metal and electronics industries as well as in many consumer products, such as coatings or paints, and are therefore among the most important chemicals. The petrochemical production of organic solvents is a relevant environmental issue because fossil resources...
Article
Chemical synthesis is a complex and diverse procedure, and production data are often scarce or incomplete. A detailed inventory analysis of all mass and energy flows necessary for the production of chemicals is often costly and time-intensive. Therefore only few chemical inventories exist, even though they are essential for process optimization and...

Citations

... non-ferrous metal extraction processes in the database. As a result, sulfidic tailings are identified as a large contributor to toxicity impacts in many product systems (Reinhard et al. 2019). Hence, collection of more data with higher specificity regarding the treatment of tailings from different extractions could influence the results of this study. ...
... However, specific data (e.g., differences in fertilization techniques, irrigation, pesticides, etc.) per EU country were scarce. In this sense, regionalized LCA modeling is required more than ever (Frischknecht et al., 2019) to overcome the challenges of data requirements. ...
... Heijungs (2017) commented on the unjustified use of distribution theory by Steinmann et al. (2017a), after which Steinmann et al. (2017b) analyzed their case in more detail. This remains, however, an exception, and the use of t , F , and p values in quasi-empirical meta-comparative LCA should be interpreted with caution. ...
... The lack of harmonization across different data providers, software providers and life cycle impact assessment (LCIA) methods is a well-documented challenge [2][3][4][5][6][7][8]. Previous research efforts have been investigated to highlight and showcase the myriad of challenges associated with LCA data interoperability [9], even going so far as to create methodologies to review and assess the level of harmonization across various platforms [9,10]. Past research has highlighted the issues around nomenclature [7,10] and the need for improved semantics within LCA to access machine capabilities for harmonizing data across platforms [4,9,10]. ...
... Por outro lado, a extensa lista de fluxos requerida para calcular os indicadores da ACV [9] requer medições de poluentes atualmente não exigidas pela legislação ambiental brasileira. Ademais, os indicadores previstos no Sidac cobrem os principais aspectos ambientais da construção e se correlacionam com os impactos ambientais avaliados na ACV [10], [11]. ...
... In electricity consume and heat production during the operation is also considered. Background data include data of construction materials, chemicals, energy production, avoided fertilizer, transportation, and sludge incineration process obtained from the Ecoinvent 3.1 database (Moreno-Ruiz et al., 2014;Weidema et al., 2013). ...
... In order to make the necessary calculations in the LCA model, first of all, waste types are defined separately in the system. For this, the waste groups that exist in the Ecoinvent 3 library were used (Moreno Ruiz et al. 2013). The Ecoinvent database is considered the most comprehensive corresponding to the European requirements for SimaPro software used in LCA analysis. ...
... This all relates with the pertinent concept of decision-support, from an ideological perspective, which has been brought forward in many works on this topic. A lot of studies focus in fact only on the decision-support criterion as a crucial point of comparing ALCA and CLCA (Frischknecht et al., 2017;Yang, 2019), despite the importance of the other criteria. To conclude, the second criterion is whether the tool is in line with certain ethics, related responsibility accounting and decision-support. ...
... However, the assessment accounts for solely manufacturing impacts thus these aspects are not covered. Moreover, the uncertainties of the LCA model must be examined further with the emissions from upstream processes such as mining taken from the Ecoinvent database [51], where numerous simplifications are made. Acidification impacts are clearly dominated by the mining of sulfidic minerals above all cobalt, nickel and copper as a result the NMC and NMMT type cells score correspondingly worse. ...
... Secondary data are recognised as forming the background part of the system investigated, whilst the primary ones are contained within the foreground part of the same system. Despite its importance for processspecific and -representative LCAs, the foreground system generally represents around 5% of the total process units of the whole product system (Reinhard et al., 2016;Ingrao et al., 2021c). ...