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Example Projects
Green House Gases Emissions Inventories
Led early efforts to promote the use of greenhouse gas inventories to provide a better understanding of the extent of firms' liability. Conducted inventory development or carried out verification review for large cement manufacturer, the University of Washington, a Dept. of Energy national laboratory, the City of Seattle, a multi-campus regional hospital, and farming operations, among others. Prepared a comparative study of six municipal GHG inventories. Also conducted "carbon footprint" studies of embedded carbon in the supply chain. Verification studies have been carried out against the Climate Registry and WRI-WCSD protocols.
Evaluation of Medical Waste Incineration Policy Options for Municipal Government (Seattle, WA)
Prepared a detailed study of medical waste disposal, including characterization of the local medical waste stream and medical waste incinerators, review of other disposal options, review of permit compliance, an assessment of health risks of incinerator emissions, review of local, state and federal regulations, three case studies of regulation of medical waste incinerators, and an analysis of six different regulatory approaches appropriate to a municipality.
Evaluation of Acid Deposition Control Policies for Washington
Used macro-ecologic model and regional acid deposition model for sulfates and nitrates to estimate effects of alternative control policies. Developed a regional emission inventory, inventories of the resources at risk, dose-effect functions, and economic cost functions from empirical studies and expert opinion. Estimated costs and benefits of control policies and made a statistical analysis of net economic values.
Waste Characterization and Incinerator Feasibility Study (North Slope Borough, AK)
Carried out a comprehensive study of existing municipal waste incinerator and waste disposal options for the Prudhoe Bay oil fields. Waste characterization and engineering studies showed the existing incinerator would require significant modifications to achieve economical operation. Feasibility studies examined the comparative capital and operating costs of large and small incinerators, recycling, composting, a new local landfill, and long haul to an existing landfill.
Emission Inventory and Meteorological Data Analysis (Dhanbad, Bihar, India)
An emission inventory was developed for the Jharia coalfields and surrounding region. Sources included coal mining, coal fires, a thermal power plant, other industrial sources, road dust, vehicular emissions and domestic sources, including cottage industries. An estimate was made of the annual total tons of coal burned, mined and processed into coke. Envirometrics also analyzed local meteorological data sets, all of which were missing critical data. Methods were developed for estimating the missing data using other parameters and known climatological patterns. Results from the emission inventory and air dispersion modeling were used to relocate portions of the population catastrophically impacted by underground and surface coal fires to areas of acceptable air quality.
Hazardous Waste Incineration in Cement Kiln (Rio de Janeiro, RJ, Brazil)
Prepared study of permitting requirements and system design and operation modifications necessary to meet US standards for incineration of hazardous wastes in a cement kiln.
Urban Air Quality Strategy in Asia
Developed study of the then-current technology in diesel vehicle particulate matter control, reviewed existing industrial emissions standards and advised national environmental agencies in the Philippines and Indonesia on the preparation of air quality implementation plans.
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