The Anthropic Pressure on the Grey Water Footprint: The Case of the Vulnerable Areas of the Emilia-Romagna Region in Italy

Nitrogen (N) is an important component of plant development, yet its application and contamination are a global issue. Diffuse source pollution and its effects on ecosystem health are notoriously difficult to track and control. This paper answers the Sustainable development Goal 6 goal focused on reducing water pollution by improving the understanding of nitrate emissions to groundwater and their resulting water pollution level in the Emilia-Romagna region in Italy. The Grey water footprint (GWF) and water pollution level (WPL) were used as indicators and geospatial maps were constructed in order to determine if N levels exceeded groundwater quality demand from 2014 to 2020. Moreover, a selection of specific agricultural sites in the Piacenza district has been performed to better understand the potential anthropogenic nitrate pollution due to the agricultural sector. In the selected sites, the predicted nitrate pollution due to agricultural practice has been compared with the nitrate concentration measured in samples collected across the period 2015-2018. The regional results show that approximately 70% of the analysed sites resulted in a total N load exceeding the estimated agricultural load to groundwater. The analysis conducted in three selected wells in the Piacenza district shows the sporadic exceedances of the legal limit and demonstrates the presence of anthropogenic pressures of various natures insisting on the surrounding area and confirms a potential non-agricultural point or diffuse pollution source

Outcome variables in the evaluation of alcoholics' treatment: Lessons from the Italian Assessment of Alcoholism Treatment (ASSALT) project

The observational evaluation of alcoholics' treatments requires a combined analysis of alcoholic behaviour during treatment and of adherence to therapeutic programmes. The application of survival analysis techniques in this setting has been explored in this study. Two hundred and seventy alcoholics admitted to 15 Italian treatment units in a 1-year period were followed-up for 2 years, recording date and length of every recurrence episode and of definitive or transitory interruption of the planned treatment. An extensive use of several survival analysis techniques was made. The length of time between the start of the treatment and the first episode of relapse did not give a reliable measure of frequency of failures. Conversely, the length of time between the start of treatment and withdrawal appeared to be unbiased. The cumulative proportions of treatment-compliant patients (and the corresponding 95% confidence intervals) were 71% (66-76%), 63% (57-69%) and 53% (47-60%) after 6 months, 1 year and 2 years respectively from the start of treatment. Cumulative abstinence duration before withdrawal was significantly and positively associated with the risk of first, of definitive, and of every episode of treatment interruption. This first application of survival analysis techniques to the combined study of alcoholic behaviour and of adherence to treatment can improve our knowledge of treatment evaluation. Our results suggest that compliance to treatment is an objective and versatile outcome measure. Long-term follow-up studies aimed to elucidate the determinants of withdrawal should be performed