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Soluble salt removal from MSWI fly ash and its stabilization for safer disposal and recovery as road basement material

Fly ash from municipal solid waste incinerators (MSWI) is classified as hazardous in the European Waste Catalogue. Proper stabilization processes should be required before any management option is put into practice. Due to the inorganic nature of MSWI fly ash, cementitious stabilization processes are worthy of consideration. However, the effectiveness of such processes can be [...]

Biofuels and City Air: A Marginal Beneficial Effect Unless Adopted by 26% or More Drivers

If drivers switch from gasoline to biofuels, will it lessen the air pollution that shrouds cities around the world? Studies of auto emissions have indicated it might. But the first citywide air quality study of its kind, reported at the meeting, suggests that unless more than 26% of cars make the switch, it will have [...]

Solar Cooling Market: A Variety of Options Available for Consumers

A number of commercial products are available for solar cooling components in residential and vehicular uses from Climate Well: http://www.climatewell.com/index.html#/applications

EPA approves E15 ethanol blend registrations

In Washington, The U.S. Environmental Protection Agency approved the first applications for registration of e hanol for use in making gasoline that contains up to 15 percent ethanol – known as E15.To enable widespread use of E15, the Obama Administration has set a goal to help fueling station owners install 10,000 blender pumps over the [...]

Impact of Transportation Infrastructure on Development in East Africa and the Indian Ocean Region

The study explores the relationship between transportation and development in the East Africa and Indian Ocean (EAIO) region. A positive link between development, defined in terms of gross national income per capita (GNI/cap), and transportation, operationalized in terms of the different major forms of transport infrastructure in the study region, is hypothesized. Multiple regression involving [...]

Airports Offer Unrealized Potential for Alternative Energy Production

Scaling up for alternative energy such as solar, wind, and biofuel raises a number of environmental issues, notably changes in land use and adverse effects on wildlife. Airports offer one of the few land uses where reductions in wildlife abundance and habitat quality are necessary and socially acceptable, due to risk of wildlife collisions with [...]

Gasoline emissions dominate over diesel in formation of secondary organic aerosol mass

Although laboratory experiments have shown that organic compounds in both gasoline fuel and diesel engine exhaust can form secondary organic aerosol (SOA), the fractional contribution from gasoline and diesel exhaust emissions to ambient SOA in urban environments is poorly known. Here we use airborne and ground-based measurements of organic aerosol (OA) in the Los Angeles [...]