Health Effects Caused by Primary Fine Particulate Matter (PM2.5) Emitted from Buses in the Helsinki Metropolitan Area, Finland

Fine particle (PM(2.5)) emissions from traffic have been associated with premature mortality. The current work compares PM(2.5)-induced mortality in alternative public bus transportation strategies as being considered by the Helsinki Metropolitan Area Council, Finland. The current bus fleet and transportation volume is compared to four alternative hypothetical bus fleet strategies for the year 2020: (1) the current bus fleet for 2020 traffic volume, (2) modern diesel buses without particle traps, (3) diesel buses with particle traps, and (4) buses using natural gas engines. The average population PM(2.5) exposure level attributable to the bus emissions was determined for the 1996-1997 situation using PM(2.5) exposure measurements including elemental composition from the EXPOLIS-Helsinki study and similar element-based source apportionment of ambient PM(2.5) concentrations observed in the ULTRA study. Average population exposure to particles originating from the bus traffic in the year 2020 is assumed to be proportional to the bus emissions in each strategy. Associated mortality was calculated using dose-response relationships from two large cohort studies on PM(2.5) mortality from the United States. Estimated number of deaths per year (90% confidence intervals in parenthesis) associated with primary PM(2.5) emissions from buses in Helsinki Metropolitan Area in 2020 were 18 (0-55), 9 (0-27), 4 (0-14), and 3 (0-8) for the strategies 1-4, respectively. The relative differences in the associated mortalities for the alternative strategies are substantial, but the number of deaths in the lowest alternative, the gas buses, is only marginally lower than what would be achieved by diesel engines equipped with particle trap technology. The dose-response relationship and the emission factors were identified as the main sources of uncertainty in the model.     

Proactive or Protective? Dimensions of and Advocacy Activities Associated with Reported Policy Change by Nonprofit Organizations

Nonprofit and voluntary associations have a long history of defending the rights of their members, clients, and the public. Despite a burgeoning literature on advocacy by nonprofit organizations, few studies attempt to answer a central question: what factors influence nonprofit success in achieving the changes they aim to affect? Using original data from nearly 400 US nonprofits, we examine the extent to which they were involved in changing public policy, the nature of this engagement, and advocacy activities, organizational characteristics and relationships with others associated with reported policy change. More than three quarters of respondents reported having enacted, stopped, or modified policy. Nonprofits more often reported proactively changing policy when working in partnership and reactively stopping or modifying policy when facing opposition groups. Providing expertise and attending meetings was associated with reported policy change, whereas placing opinion ads was not.     

Distinguishing Providing Public Services from Receiving Government Funding as Factors in Nonprofit Advocacy

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This study innovates by introducing a conceptual distinction between the provision of public services and the receipt of...