emissions event Articles

  • Beaver Dam Flats ArmorFlex Pathway Reconstruction - Case Study

    ArmorFlex provides a low-disturbance, efficient and flexible solution to a flood-damaged trail. A trail system path through the Bow River floodplain in Calgary was washed-out during the city’s 2013 flood. The City of Calgary needed to make quick and lasting repairs to maintain this section as part of its larger Regional Pathway Network, an important link for commuters and ...


    By Nilex

  • Side event: Terrestrial Ecosystems with High Carbon Content

    SBSTA is currently discussing technical and scientific aspects regarding the assessment of emissions and removals of greenhouse gases in terrestrial ecosystems with high carbon content, such as steppe, peatlands and tundra. Research and systematic observations on ecosystems with high carbon content enable a better understanding of the scale of human impact on such ecosystems and an estimation of ...


    By Wetlands International

  • Dynamic Simulation of Volatile Compound Transient Events at WWTPS

    ABSTRACTTransient or intermittent releases of specific volatile or semi-volatile organic compounds are not managed well by existing predictive fate models such as TOXCHEM+ or Water9 because they are based on steady-state conditions. In this paper, two scenarios for treatment of transient organic compound concentrations are studied using dynamic simulation: ...

  • A look back on 2012, the year of extreme weather events

    Temperatures hit an unseasonably warm 61˚F in Washington D.C. earlier this week. The Middle East is blanketed in record rainfall and rare heavy snowfall, ending a nearly decade-long drought. Australia ...

  • Continous Emission Monitoring (CEMs)

    Presented in Track B1: CEMs at EUEC 2011,January 31 Phoenix, Arizona   B1.1  | Particulate CEM for wet FGD plant William Averdieck |  Managing ...

  • A constant eye on emissions

    Due to increasingly rigorous requirements for regulatory and permit compliance, organisations are seeking more from all compliance support systems. The ability to expand systems to encompass new, or migrate existing, regulatory calculations used to monitor environmental performance is vital. Planning strategically for a scalable and sustainable system has been shown to reduce overall compliance ...


    By Wood Group Mustang, Inc.

  • Source identification by a statistical analysis of backward trajectories based on peak pollution events

    Back-trajectory techniques are extensively used to identify the most probable source locations, starting from the known pollutants concentration data at some receptor sites. In this paper, we review the trajectory statistical methods (TSMs) that are most used in literature for source identification, which are essentially based on the concept of residence time (RT), and we introduce a novel ...


    By Inderscience Publishers

  • A new approach to SSM emissions management

    On October 16, 2009, the United States Court of Appeals for the District of Columbia Circuit (DC Circuit) mandated the vacatur of the “Startup, Shutdown, and Malfunction (SSM) exemption” allowed under General Provisions in Subpart A of the National Emission Standards for Hazardous Air Pollutants (NESHAP).1  Under the SSM exemption, NESHAP Subpart A previously stipulated that an ...


    By Trinity Consultants

  • CIBSE Event at Kings Cross CHP plant a great success - Case Study

    Clarke Energy showcases GE’s Jenbacher combined heat and power (CHP) engines at the 67 acre, Kings Cross development at Hoare Lea. Hoare Lea is a firm of consulting engineers, specialising in mechanical, electrical and environmental engineering. The event took place on the evening of ...


    By Clarke Energy

  • The connection between climate change and recent extreme weather events

    What do we know about the connection between climate change and recent extreme weather events, such as the heat waves, drought, and fires? Scientists agree that climate change has already primed the pump for extreme weather events: A recent report by National Oceanic and Atmospheric Administration (NOAA) scientists compared the rising risk of extreme weather events to a baseball ...

  • Summarizing the fundamentals of fugitive emission tracking

    Fugitive emission tracking for a number of key industries is now a focus for the United States and a number of other countries. When a hazardous leak occurs it is important to identify and gauge the amount and type of substance emitted. Officials will gain a better understanding of the challenge posed by greenhouse gases, as they affect global warming. When an unexpected leak of a hazardous ...


    By Verisae

  • When companies track their climate emissions

    Voluntary greenhouse gas accounting has become common in the private sector, but is it helping? Ten years ago, as part of a sustainability initiative, Walmart decided to take a look at its greenhouse gas emissions. The retail giant not only tallied up the carbon footprint of its trucking fleet and supersize stores, it also set out to quantify the greenhouse gas emissions associated with ...


    By Ensia

  • Clean urban transport can drive emissions cuts

    Here’s a way to save $100 trillion and stop 1,700 million tonnes of carbon dioxide from getting into the atmosphere every year by 2050: cycle, walk or take public transport. A new report by the University of California Davis and the Institute for ...


    By Climate News Network

  • Zero emissions day: What it is and why we need it

    Today is September the 21st – a day that didn’t hold any particular significance until a simple observation occurred in the 1980’s. Ken Wallace, father of a newborn daughter, realized, after witnessing the local neighborhood pizzeria truck, parked, running and driverless, combined with the surrounding traffic that “Stopping all this for a bit would be most excellent for ...

  • Emissions Trading in China: First Reports from the Field

    When Tianjin launched its carbon emission trading scheme (ETS) on Dec 26th 2013, it became the fifth ETS operating in China, following Shenzhen, Beijing, Shanghai, and Guangdong. Now that five of seven pilots have started trading and the rest are expected to start in 2014, the aggregate of all emissions regulated in China through the seven pilots will be the second largest in the world, following ...

  • New laser-based dust emission monitoring system

    Abstract A new generation of continuous particulate matter concentration monitoring instruments is presented, covering a measuring range of 0 to 1000 mg/m3. The laser-based scattered light instrument gives an improved stability as well as excellent resolution in the low range. This enables high concentration measurement as well as especially low emission monitoring down to 0.01 mg/m3 with a ...


    By Sigrist-Photometer AG

  • Assessing UV- and fluorescence-based metrics as disinfection byproduct precursor surrogate parameters in a water body influenced by a heavy rainfall event

    Although disinfection byproducts (DBPs) were discovered decades ago and surrogate parameters have been developed to track their precursors, the accuracy of these metrics in waters impacted by heavy rainfall events is largely unknown. We measured DBPs and their precursor surrogate parameters in a water body impacted by 28 cm of rain between 4/24/11 and 4/26/11. Raw waters collected from four ...


    By IWA Publishing

  • Methodology for risk assessment of flash flood events due to climate and land-use changes: application to the Llobregat basin

    Global change, including climate, land-use and socio-economic changes, is expected to increase the stress on the entire water cycle. In the Mediterranean region, extreme events are likely to increase due to climate change. This work, framed in the EC Seventh Framework Programme project IMPRINTS, presents a methodology to obtain future flood risk maps using climate and land-use scenarios, ...


    By IWA Publishing

  • Do we need a standard to calculate “avoided emissions”?

    Businesses are constantly reminded of the risks and challenges of climate change, most recently with the Intergovernmental Panel on Climate Change’s fifth assessment report (AR5). Extreme weather events like flooding, wildfires, and droughts are challenging our infrastructure and disrupting our ...

  • Proposed boiler MACT sets aggressive emission limits

    On June 4, 2010, U.S. EPA proposed National Emission Standards for Hazardous Air Pollutants (NESHAP) for industrial, commercial, and institutional boilers and process heaters at both major and area sources of hazardous air pollutants (HAP) emissions.  EPA proposed separate rules for units at major sources of HAP emissions (greater than 10 tons per year [tpy] of any single HAP and/or greater ...


    By Trinity Consultants

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