source emissions Articles
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California`s Achievements in Mobile Source Emissions Control
Untitled Document Since its formation in 1967, the California Air Resources Board (CARB) has successfully launched numerous emissions reduction programs in the state. These programs have significantly improved California’s air quality, despite the number of people and vehicles more than doubling over the past four decades. CARB’s programs have ...
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Comparative sensitivity study for operational short range atmospheric dispersion models
Eight atmospheric dispersion models are compared in a sensitivity study in which the responses towards variations in model input parameters are evaluated. For a single source the values of eight practical model input parameters are varied. The model response is evaluated by examining the maximum value of the 98th percentile of the hourly averaged concentration values. The results are represented ...
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Avoid a challenge to your air permit - choose the right off-site meteorological data, presented at EUEC 2010
Modeling Requires Many Inputs To set the stage, you need: Elevation data Fence lines Receptor grids Building locations Building dimensions Stack coordinates Stack heights Stack diameters Exit temperatures Exit velocities Volume source parameters Area source parameters Emission rates But to get it all moving (transporting/dispersing the emissions from a single point), you ...
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Mobile Stationary Source Emissions Testing, Coming to a Facility Near You?
Last week, Antea Group had the unique opportunity to perform a RATA (relative accuracy test audit) of the emissions from a thermal oxidizer at an ethanol production facility located in Minnesota using a state-of-the-art mobile testing laboratory. During this RATA audit, actual stack emissions levels (including NOx, SOx, CO2, CO, O2, flow rate, temperature, velocity and pressure) from the thermal ...
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The road not chosen
Analysis of data for historical consumption of the most important energy sources and carbon emission leads to a method to calculate the carbon emission with another fuel mix than the actual one. It is shown that a continued growth of nuclear power could have replaced the whole Kyoto process.Keywords: economy, ecology, nuclear power, nuclear energy, Kyoto protocol, carbon emissions, road not ...
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Fenceline Monitoring of Benzene in Refineries Using OMNI-2100 - Case Study
Background: According to the Environmental Protection Agency (EPA)1, undetected leaks (aka fugitive emissions) are a significant source of pollution and can emanate from industry, refineries, energy production, and natural gas pipelines. Fixing these leaks can protect workers and nearby communities, reduce operating costs for companies, and assist regulators with implementing source emissions ...
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H&S Operational Efficiency: Fugitive emissions
During normal operations, leaks can occur from pumps, valves, flanges, storage tanks or during loading and unloading. According to the US EPA3, valves and connectors account for more than 90% of emissions from leaking equipment and there are hundreds of pieces of equipment as shown in Figure 3. Figure 3: Typical equipment counts (EPA) Source: “Cost and Emission Reductions for ...
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The Area Source Mact/Gact Challenge
Dozens of new federal rules, regulating over 180 Hazardous Air Pollutants for relatively small sources, present a new and unique challenge for the air pollution profession. Over the past two decades, a large number of federal regulations have been adopted to control Hazardous Air Pollutants (HAPs) originating from a wide range of source categories from the corner dry cleaner to petroleum ...
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Introduction to the A&WMA 2005 Critical Review: Nanoparticles and the Environment
Untitled Document Nanoparticles are loosely defined as particles with diameters in the range of 1 nm to 50 or 100 nm (nanometers). Nanoparticles are bigger than air molecules (0.3 nm), but are smaller than the upper limits regulated by ambient air quality standards. (U.S. National Ambient Air Quality Standards regulate the mass of particles ...
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Significance of a CALPUFF Near-Field Analysis
Historically CALPUFF air dispersion modeling has been a useful tool for determining ambient concentrations, regional haze, and deposition in Class I areas for Prevention of Significant Deterioration (PSD) applications. Until recently, CALPUFF has not been utilized by minor sources for small permitting projects or for near- field regulatory analyses due to the costs encountered from the complexity ...
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How to Obtain an Air Pollution Construction Permit Infographic
Today, U.S. Environmental Protection Agency (EPA) is more aggressively pursuing enforcement actions against industrial sources than ever before. This is a result of EPA desire to generate revenue, as well as reflecting the desires of current leadership. In this regulatory climate, it’s increasingly important for emission unit operators to understand enforcement risks and liabilities. ...
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Enterprise Carbon Accounting: The quest for unprecedented transparency
Enterprise carbon accounting (ECA) is an essential requirement for companies and will likely become necessary due to government legislation. No longer is it permissible for a company to look within its borders, but it must look at its overall environmental responsibilities and accurately gauge and measure carbon production and emission caused by its very existence. Financial data must be directly ...
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Determinating the influence of different PM 10 sources on air quality in Ljubljana basin with CALPUFF dispersion model
Ljubljana has an unfavourable geographical location in the basin, almost entirely surrounded by high hills. Winds in the basin are often weak and situations with temperature inversion are very frequent, therefore, many PM 10 daily limit value exceedances were observed in 2011. The Directive 2008/50/EC (EU, 2008) requires member states to adjust or provide new air quality plans in order to ...
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CO2 Emissions From Fuel Combustion Highlights 2014
In the lead-up to the UN climate negotiations in Lima, the latest information on the level and growth of CO2 emissions, their source and geographic distribution will be essential to lay the foundation for a global agreement. To provide input to and support for the UN process, the IEA is making available for free download the "Highlights" version of CO2 Emissions from Fuel Combustion now on sale ...
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Integrated gasification combined cycle (IGCC) air permitting: overcoming obstacles, maximizing flexibility, presented at EUEC 2010
Agenda 1.IGCC Process Overview Gasification system options and process flow diagram Process area and plant-wide air emissions summary 2.Gasification Block Sources Emission points and operating scenarios (OS) Short-term and annual emissions summary 3.Permitting and Compliance Strategies Permitting considerations for startup, shutdown, gasifier rotations, and malfunctions (SSM) ...
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Air quality model simulating photochemical formation of pollutants: the Sao Paulo Metropolitan Area, Brazil
The main sources of ozone precursors in the atmosphere of the Sao Paulo Metropolitan Area (SPMA) in Brazil are emissions from gasoline-, ethanol-, and diesel-powered vehicles. Ozone is a significant air quality problem in the SPMA. To come into compliance with the National Ambient Air quality Standard for Ozone, emission reduction policies must be established. An adequate emissions inventory and ...
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State of Illinois Treasury Office - Case Study
Project Results and Impacts Identification of the most energy consuming sources Minimize emissions and utility costs CSE Solution “Measurement of GHG Emissions” CSE performed the calculations for all the operations of the State of Illinois Treasury Office. The calculations were performed for the buildings operated by the State of Illinois Treasury Office in Springfield, ...
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A special issue of JAW&MA supporting key scientific and policy- and health-relevant findings from EPA`s particulate matter supersites program and related studies: an integration and synthesis of results
The U.S. Environmental Protection Agency (EPA) initiated a major air quality program in 1998 referred to as the Particulate Matter (PM) Supersites Program. The overall goal of the program was to improve our understanding of source/receptor relationships and atmospheric processes leading to PM accumulation on urban and regional scales, and thus, provide the scientific underpinning for modeling and ...
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How Refiners Use Monitoring Tools to Support Community Health and Safety
Nothing is more important than the health and safety of our people and our communities—the communities where our employees live, work and go to school. Fenceline monitoring is used at our facilities to aid in the early detection of emissions, including benzene. The data helps us immediately correct problems and nearly all refining facilities quickly return to below action levels after ...
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Inventory of US greenhouse gas emissions and sinks: 1990 – 2006
An emissions inventory that identifies and quantifies a country's primary anthropogenic sources and sinks of greenhouse gases is essential for addressing climate change. This inventory adheres to both 1) a comprehensive and detailed set of methodologies for estimating sources and sinks of anthropogenic greenhouse gases, and 2) a common and consistent mechanism that enables Parties to the United ...
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