## 3 Conclusions  
An environmental LCA was implemented to investigate the evolution of MSW management in the Italian municipality of Procida island, based on high-quality data obtained from the W-MySir information system, which is widely used in the South of Italy. These data, together with those provided by Conai, or available in the scientific literature for units operating in the area of interest, were processed by means of material flow analyses to quantify the environmental burdens relevant to the LCA study.  
The results quantify the improvement in the main impact categories, highlighting the great importance of the quantitative and qualitative increase of household source  
Figure 6: Results of sensitivity analysis scenarios, compared with those of base case scenarios. Results refer to the chosen functional unit (“the treatment of 1 tonne of MSW”) and are normalised in “person”year” (the average impact in a specific category caused by a person during one year in Europe). NC = non-carcinogens; RI = respiratory inorganics; LO = land occupation; GW = global warming; NRE = non-renewable energy.  
separation and collection over the last 10 years. The possibility of using a more integrated and sustainable management system is also crucial for all the pathways of sorted and unsorted wastes, including the recycling chains, biological treatments (particularly for the anaerobic digestion option), and thermal treatment (in highly efficient waste-to-energy units).  
The role of the information system appears crucial in providing reliable high-quality data; it could provide a continuously updated databank for LCA studies. Future improvements to the platform will include the acquisition and processing of data for solid residues from the selection and remanufacturing stages, for innovative management options, together with those relating to the real role played by recycled products in the market.  
The study demonstrates the importance of a well-structured and updated information system in supporting the activities of monitoring and planning of the waste management service of a community or larger districts. Its combined use with LCA can provide local governments with data for the reliable assessment of their waste management system and for the implementation of continuous improvements to its overall environmental performance. The combined approach appears advantageous for both the tools assessed: LCA studies could be more quickly implemented and provide further reliable results; information systems could offer more extensive and valuable services. This will help to monitor the sustainability of management systems and to plan for their evolution consistent with the principles of a circular economy.  
The following supporting information can be downloaded at: [[https://www.mdpi.com/article/10.3390/app13020707/s1](https://www.mdpi.com/article/10.3390/app13020707/s1)]([https://www.mdpi.com/article/10.3390/app13020707/s1](https://www.mdpi.com/article/10.3390/app13020707/s1)).  
Conceptualization, F.A. and U.A.; methodology, F.A.; software, F.A. and C.D.D.; validation, U.A.; investigation, F.A. and F.P.; data curation, F.P., F.A., F.C. and C.D.D.; writing--original draft preparation, F.A.; writing--review and editing, U.A.; visualization, F.P.; supervision, U.A. All authors have read and agreed to the published version of the manuscript.  
This research received no external funding.  
Not applicable.  
Annexes associated with this article can be found, in the online version.  
The authors declare no conflict of interest.  
List of Acronyms  
Anaerobic Digestion  
APC Air Pollution Control  
BOD5 Biochemical Oxygen Demand  
CHP Combined Heat and Power  
COD Chemical Oxygen Demand  
EC European Community  
EU European Union  
EWC European Waste Code  
FU Functional Unit  
GW Global Warming  
LCA Life-Cycle Assessment  
LCI Life-Cycle Inventory  
LCIA Life-Cycle Impact Assessment  
LHV Low Heating Value  
LO Land Occupation  
MFA Material Flow Analysis  
MRF Material Recovery Facility  
MSW Municipal Solid Waste  
NC Non-Carcinogens