air toxic directive Articles

  • Direct Energy case study

    A wholly owned subsidiary of Koch Industries - one of the largest privately owned companies in the world - Flint Hills Resources (FHR) operates 3 oil refineries in the United States, a petrochemical processing facility in Illinois, and petroleum marketing and distribution interests in Canada. FHR first implemented the e3 Compliance Management system as an enterprise solution in 2001. In 2003 the ...


    By e3 Solutions Inc.

  • Canarina DISPER Software · air toxics dispersion model · algorithms 7

      Canarina DISPER Software · air toxics dispersion model   9.1.2 Downwind and Crosswind Distances  The model uses a Cartesian receptor network. All receptor points are converted to Cartesian (X,Y) coordinates ...

  • Intraurban variability of Ambient PM Arsenic and other air toxics metals case study

    The Missouri Department of Natural Resources (MoDNR) and Washington University participated in a project to collect and analyze air toxics metals data. It was funded through a Community Air Toxics Grant from the U.S. Environmental Protection Agency (USEPA). The study grew out of the southside St. Louis Community Air Project (CAP) which identified six hazardous air pollutants of concern including ...


    By Cooper Environmental

  • The impact of urban areas on the deposition of air toxics to adjacent surface waters: A mass budget of PCBs in Lake Michigan in 1994

    The impact of urban air toxics on the proximate water bodies was investigated as part of the AEOLOS Project (Atmospheric Exchange Over Lakes and Oceans). The hypothesis of this project was that emissions of hazardous air pollutants into the coastal urban atmosphere increased atmospheric depositional fluxes to proximate Great Waters. Areas of major field and modeling campaigns were located in ...


    By Springer

  • PETROTOX: An aquatic toxicity model for petroleum substances

    A spreadsheet model (PETROTOX) is described that predicts the aquatic toxicity of complex petroleum substances from petroleum substance composition. Substance composition is characterized by specifying mass fractions in constituent hydrocarbon blocks (HBs), based on available analytical information. The HBs are defined by their mass fractions within a defined carbon number range or boiling ...


    By John Wiley & Sons, Ltd.

  • Regionally Based Assessment of Persistent Toxic Substances

    Untitled Document EXECUTIVE SUMMARY In 1997 the United Nations Environment Programme (UNEP) Governing Council decided that immediate international action ...


  • Uptake and toxicity of polycyclic aromatic hydrocarbons in terrestrial springtails—studying bioconcentration kinetics and linking toxicity to chemical activity

    Passive dosing applies a polymer loaded with test compound(s) to establish and maintain constant exposure in laboratory experiments. Passive dosing with the silicone poly(dimethylsiloxane) was used to control exposure of the terrestrial springtail Folsomia candida to six polycyclic aromatic hydrocarbons (PAHs) in bioconcentration and toxicity experiments. Folsomia candida could move freely on ...


    By John Wiley & Sons, Ltd.

  • Debate Continues on TCE Toxicity Estimates: TCE Remediation Plans Could be Affected

    Untitled Document Debate on EPA's draft toxicity factors for trichloroethene (TCE) continues both inside and outside of EPA. In August 2001, EPA published an External Review Draft TCE Health Risk ...


    By AECOM

  • A Breath of Fresh Air for Your

    As the full effect of the Federal Clean Air Act (CAA) Amendments continue to impact today’s industry, many companies will be required to install new or additional air pollution control equipment.  With over two decades of proven success, catalytic oxidation is a popular method for controlling volatile organic compound (VOC) emissions.During the past 25 years, industry has made progress in ...


    By The CMM Group, LLC

  • Identification of α-β unsaturated aldehydes as sources of toxicity to activated sludge biomass in polyester manufacturing wastewater

    Wastewater generated in industrial production processes are often contaminated by hazardous chemicals. Characterization by means of toxicity-directed analysis is useful for identifying which fractions of a waste stream possess the most toxicity. We applied this approach to evaluate toxic components of a polyester manufacturing wastewater. Using the reduction in oxygen uptake rate of activated ...


    By IWA Publishing

  • Modeling Mercury Fluxes and Concentrations in a Georgia Watershed Receiving Atmospheric Deposition Load from Direct and Indirect Sources

    Mercury (Hg) is considered a priority pollutant because of its toxicity and potential for strong bioaccumulation.There are many serious environmental and human health concerns associated with elevated levels of Hg linked to industrial ...

  • WOW-Air Eliminates Headworks H2S

    Summary FreshAWL was invited to the Mel Leong Industrial Waste Treatment Plant (MLTP) to introduce FreshAWL® WOW-Air™ for the purpose of better resolving their high levels of aerobic H2S at the treatment system head-works with a green sulfide scavenger. The MLTP and the San Francisco Public Utilities Commission (SFPUC) were researching cleaner and more effective alternatives to ...


    By FreshAWL, LLC

  • Technology: clean air’s unsung hero

    Last year, we celebrated the 40th anniversary of the U.S. Clean Air Act (CAA) and the 20th anniversary of the 1990 Amendments to the CAA. The CAA has been a huge success. From 1990 to 2008, emissions of six common pollutants were down 41%, while gross domestic product grew 64%. Emissions of volatile organic compounds dropped 31%, carbon monoxide dropped 46%, and sulfur dioxide dropped 51%. Lead ...

  • Air quality in Europe - 2014 report

    Despite considerable improvements in the past decades, Europe is still far from achieving levels of air quality that do not pose unacceptable risks to humans and the environment. Air pollution is the top environmental risk factor of premature death in Europe; it increases the incidence of a wide range of diseases and has several environmental impacts, damaging vegetation and ecosystems. This ...

  • Air quality in Europe — 2013 report

    Air quality continues to be a very important issue for public health, the economy and the environment. Europe has significantly cut emissions of several air pollutants in recent decades, greatly reducing emissions and exposure to substances such as sulphur dioxide (SO2), carbon monoxide (CO), benzene (C6H6) and lead (Pb). Despite improvements over several decades, air pollution continues to ...

  • Air quality in Europe — 2015 report

    Air pollution is both an environmental and a social problem, as it leads to a multitude of adverse effects on human health, ecosystems, the built environment and the climate. Air pollution poses the single largest environmental health risk in Europe today. Air pollutants are emitted from anthropogenic and natural sources; they may be transported or formed over long distances; and they may affect ...

  • 2013: a ‘perfect storm’ in air quality

    As many countries fail to meet air quality targets and large numbers of premature deaths still result from air pollution, Jim Mills, a particulate monitoring specialist and Managing Director of Air Monitors, explains why 2013 will be a pivotal year. In November 2011 Janez Potočnik, European Commissioner for the Environment, expressed his determination to make 2013 the ‘Year of ...


    By Air Monitors Ltd.

  • Air emissions impact measurements at a perchloroethene remediation site

    As part of an U.S. EPA time critical removal action, an air monitoring system was established to measure real-time impacts of perchloroethene (PCE) on the surrounding areas. The soils and groundwater beneath the site (located in West Fargo, North Dakota) were treated using in situ heating of soil and groundwater, with the produced vapors collected using conventional vapor extraction. In order ...


    By VOC Technologies

  • Designing and Implementing Perimeter Air Monitoring Programs

    Perimeter or fenceline ambient air quality and meteorological monitoring programs have become increasingly valuable at hazardous waste, landfill, dredging, ports, and MGP remediation sites. Air quality monitoring programs protect public health and reduce owner liability ...


    By AECOM

  • Air Pollution Control: Ready for the 21st Century

    The textile industry is plagued by air pollution problems which must be resolved. In particular, smoke and odor arising in the process require abatement. Air pollution control technology is available today which will serve the textile industry well into the 21st century. The nature of the problem The major air pollution problem in the textile industry occurs during the finishing stages, ...


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