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Despite the negative environmental impact of private cars, especially when driven alone, thousands of college commuters around the World are still car dependent. In order to promote eco-friendly commuting and reduce the GHGs caused by cars, different Travel Demand Management (TDM) policies are in place at many colleges, but they do not usually consider the car commuters' point of view when identifying proper measures. In this paper, by using survey data from an Italian medium-size public university, we study what TDM policies are perceived by car users as the most effective in reducing the number of solo-drivers and consequently their carbon footprint. By estimating a multinomial logit model, we found that restrictive parking policies are statistically supported by female car commuters, students and employees belonging to science departments, and those who know that driving alone could impede alternative modes. Indeed, transit-oriented and multimodal options (including bikes) are chosen by faculty/staff car users, by users willing to leave their cars at home when the weather is good, and in general by people living in towns without railway stations. Instead, probably due to inadequate rail services, car users living in areas far from the college are weakly inclined to use transit-plus-bikes modes. Beyond improving TDM policies, these results can help mobility managers design localized tools to reduce the environmental impact of college commuting. • Carbon footprints of college users are worsened by solo-driving car commuting. • Car users' point of view helps identifying effective sustainable mobility policies. • A multinomial logit model to evaluate car users' preferable policies is used. • Transit-plus-bike policies are advocated by users without railway stations at home. • Users who enjoy driving alone a car consider parking policies more effective. [ABSTRACT FROM AUTHOR]

In 71 adults residing in Florence, Italy, enrolled in a prospective study, we investigated the correlation between individual levels of oxidative DNA damage detected by the Comet assay in circulating lymphocytes, and a specific ozone exposure score calculated in 10 different time-windows (0–5 to 0–90days) before blood drawing, based on daily measurements provided by the local environmental monitoring system. Overall, statistically significant positive correlations between average ozone concentrations and DNA damage emerged in almost all time-windows considered; correlations were more evident among males, non-smokers, and traffic-exposed workers. Multivariate regression analyses taking into account selected individual characteristics, showed an independent effect on DNA damage of average ozone concentrations in the last 60–90days before blood drawing. Local residents showed a divergent pattern with correlations restricted to shorter time-windows. Our results suggest that ozone concentrations at ground levels modulate oxidative DNA damage in circulating lymphocytes of residents of polluted areas. [Copyright &y& Elsevier]

This paper investigates whether or not Italian Certified B Corps® in the fashion industry achieved levels of corporate social responsibility (CSR) and financial performance that are comparable to listed companies in the same industry during the Covid-19 pandemic. After a review of the literature concerning B Corps, CSR and the circular economy, as well as some coverage of pandemic impacts, a quantitative approach is used to analyze the data empirically. Based on the data available, the study incorporated the entire population of Italian listed companies and B Corps in the fashion industry. Moreover, this study confirms the relationship between CSR and financial performance. The availability of sustainability documents other than the required social responsibility report does not directly affect a company's profitability, but they are necessary for the long term. The results also confirm the positive relationship between sustainability certification and higher financial performance, as the most sustainable companies were also the most profitable. Certified B Corps® declare their willingness to adopt circular economic principles to the same extent as non-certified listed companies. Moreover, the results show that consumers mainly remember the information disclosed on a company's homepage; therefore, managers should publish more there. However, they should not underestimate the importance of their sustainability report because it is an effective social communication tool, especially in the long term. Finally, obtaining the B Corp certification will allow companies to inform stakeholders of their social responsibility and achieve higher financial results. [ABSTRACT FROM AUTHOR]

On October 2004, a sampling survey was carried out in Florence to estimate urban fine particle exposure concentrations inside commuting vehicles during workdays characterized by heavy traffic. Portable samplers were positioned inside four regularly scheduled diesel-powered buses and four taxis during eight weekdays. Each sampler consisted of a 2.5μm size pre-separator cyclone, a direct-reading data logging photometer (pDR-1200), and a 4Lmin−1 filter sampler for the determination of PM2.5 mass concentration. Based on reflectance analysis measurements, a PM2.5 Black Smoke Index was determined for each filter, and the elemental composition of the PM2.5 was analyzed by Particle Induced X-ray Emission (PIXE). PM2.5 mass concentrations inside the vehicles correlated well with the urban ambient air PM2.5 concentrations measured at the fixed-site monitoring stations. The PM2.5 excess above the urban ambient level was on average 32μgm− 3 (range: 22–52μgm− 3) and 20μgm− 3 (range: 11–29μgm− 3) in buses and taxis, respectively. The PM2.5-bound sulfur concentration was also higher in the buses than in the taxis. Based on daily Time-Microenvironment-Activity-Diary (TMAD) data, the Florentines spend on average 9.7% of their day in traffic, and the corresponding average exposure is approximately 12% of their daily PM2.5 personal exposure. The obtained data could be used to plan interventions to minimize the PM2.5 citizen exposures in commuting. [Copyright &y& Elsevier]