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24 Support local greenbelt trust and outreach program-- Forest Stewardship Council certified cherrywood staff involved in habitat improvement. paneling. Nature conservation areas created and financially sup- ported as ecological compensation measures. Hazardous or Toxic Products Use of lower biochemical oxygen demand (BOD) de- icing materials. (TRB ACRP has also published Project Materials 02-01 "Alternative Aircraft and Airfield De-icing and Anti-Icing Formulations with Reduced Aquatic Construction and demolition waste constitutes about 40% of Toxicity and Biological Oxygen Demand." For more the total solid waste stream in the United States. Extraction, information, go to www.trb.org.) processing, and transportation, as well as the air and water Work safety service tracks harmful chemicals and pollutants created during production, can destroy natural hab- enters records into a database when the chemical prod- itats and deplete natural resources (Green Building... 2005). ucts work group encounters a new product. Reuse and recycling of materials can significantly reduce Use of nontoxic pest-control products. consumption of virgin materials, as well as the amount of Use of antifreeze with high recycled content (glycol). waste sent to landfill. Ensuring that materials have little or no environmental impact and do not harm human health is para- mount for achieving sustainable outcomes at an airport. Waste Management Waste management at airports is becoming increasingly Vancouver International Airport's building and con- important with the enormous increases in passenger num- struction processes use materials such as strawboard bers; it is a key responsibility of the facilities manager (Pitt and paints that are low in volatile organic compounds, and Smith 2003). Airports are notoriously poor environ- reuse building materials onsite, and have a high reuse rate of concrete and asphalt (see Figure 10). mental performers, and the growth in the industry is leading to increasing levels of waste production. Environmentally sound waste management must go beyond the mere safe dis- posal or recovery of wastes and address the root cause of the problem by attempting to change unsustainable patterns of production and consumption (United Nations Conference on the Environment and Development 2001). Portland Airport recycles foreign periodicals from international flights to educational institutions that teach foreign languages (see Figure 11). FIGURE 10 Vancouver Airport sustainable materials use. Survey respondents listed the following practices related to materials use at their airports: Free-trade coffee purchased for offices. Compostable food serviceware. Soy-based ink. Carpeting with high recycled content. Restroom paper products with high recycled content. Construction Materials FIGURE 11 Waste management at Portland Airport. Use of strawboard instead of gyprock. Reuse of building materials onsite; very high reuse of Managing the waste streams from airport operations pro- concrete and asphalt during construction projects. vides a variety of challenges, including separating and recy-