tailieunhanh - Economic Benefits of Air Pollution Regulation in the USA: An Integrated Approach

The Group recognised the difficulties involved in setting limit values for particles when the epidemiological studies had not demonstrated a no-effects threshold. However, the Group felt that limit values could be recommended at levels at which public health effects at the population level were likely to be small. On this basis the Group initially considered ranges of daily values of 30-100µgm-3 and 15- 40µgm-3 as an annual average. Drawing on studies in Europe and the US, and considering the WHO summary of exposure-response relationships the majority of the Group recommended a daily limit value of 50µgm-3 as a level at which public health. | MIT Joint Program on the Science and Policy of Global Change Economic Benefits of Air Pollution Regulation in the USA An Integrated Approach Trent Yang Kira Matus Sergey Paltsev and John Reilly Report No. 113 July2004 revised January2005 The MIT Joint Program on the Science and Policy of Global Change is an organization for research independent policy analysis and public education in global environmental change. It seeks to provide leadership in understanding scientific economic and ecological aspects of this difficult issue and combining them into policy assessments that serve the needs of ongoing national and international discussions. To this end the Program brings together an interdisciplinary group from two established research centers at MIT the Center for Global Change Science CGCS and the Center for Energy and Environmental Policy Research CEEPR . These two centers bridge many key areas of the needed intellectual work and additional essential areas are covered by other MIT departments by collaboration with the Ecosystems Center of the Marine Biology Laboratory MBL at Woods Hole and by short- and long-term visitors to the Program. The Program involves sponsorship and active participation by industry government and non-profit organizations. To inform processes of policy development and implementation climate change research needs to focus on improving the prediction of those variables that are most relevant to economic social and environmental effects. In turn the greenhouse gas and atmospheric aerosol assumptions underlying climate analysis need to be related to the economic technological and political forces that drive emissions and to the results of international agreements and mitigation. Further assessments of possible societal and ecosystem impacts and analysis of mitigation strategies need to be based on realistic evaluation of the uncertainties of climate science. This report is one of a series intended to communicate research results and improve .

• Môi trường
• notifications and data
• sources for analysis
• Reporting and analysis
• tuberculosis cases
• mortality
• drug resistance
• Push Notifications
• Push Notification Data Flow
• Push Notification Features
• Toast Message Content
• Tile Message Content
• Response Custom Headers
• Commentary
• European Region
• notified in TESSy
• Improve productivity
• preconfigured
• notifications
• settings
• scheduled reports
• Streamline processes