pm2.5 impact Articles

  • PM2.5 Air Quality Modeling Updates

    There has been much activity over the past six (6) months that will impact how air quality modeling analyses will be conducted for Prevention of Significant Deterioration (PSD) permit applications with respect to particulate matter less than 2.5 microns (PM2.5).  As the resident air quality modeling expert at ALL4, I thought it ...


    By All4 Inc.

  • EPA shifts PM2.5 PSD permitting policies

    On August 12, 2009, EPA created a significant stir in the regulated community when it issued an order that signals a significant shift in how the agency intends particulate matter with a diameter less than 2.5 micrometers (PM2.5) emissions to be regulated under the Prevention of Significant Deterioration (PSD) program. The order specifically applied to petitions filed by environmental groups ...


    By Trinity Consultants

  • Performance characterization of the MiniVol PM2.5 Sampler case study

    Measurements were conducted to assess the MiniVol PM2.5 sampler performance for various particle preseparator configurations including flat and cup impaction stages. Laboratory measurements were conducted to determine the impactor collection efficiency as a function of paricle size. Impactor cut points - the aerodynamic particle diameter exhibiting 50% collection efficiency - were 2.5 um (+- 10%) ...


    By Airmetrics

  • Danone Bottling Plant Increases Production Capacity with Addition of Aeration without Modifying Existing Infrastructure

    Overview Aguas Danone de Argentina is a leader in the national mineral and flavored water market, with well-known brands such as Villavicencio, Villa del Sur, Levité, and Ser. Aguas Danone de Argentina is part of the Danone Group, world leader in the food and beverage industry, with products reaching 120 countries on 5 continents. The bottling plant located in ...

  • Maintenance To-Do: Coil Cleaning

    A coil-cleaning program should be an integral part of maintaining some kinds of process cooling equipment. Most people think of coil cleaning as a building or facility prepares to turn on the air-conditioners for another season. Admittedly, spring is a perfect time to put such cleaning and maintenance at the top of the to-do list. Condenser and evaporator coils are an integral part of HVAC ...


    By Evapco Inc.

  • Implications for UK coal-fired power stations of a move to a particulate matter standard based on PM2.5

    The contribution of UK coal-fired power stations to ambient PM2.5 concentrations has been assessed using short- and long-range modelling. The results suggested a minimal contribution from power stations to both local and regional concentrations of PM2.5 relative to the standards in the proposed European ...


    By Inderscience Publishers

  • Traffic emission effects on ambient air pollution by PM2.5–related PAH in Upper Silesia, Poland

    The ambient concentration of particle–bound polycyclic aromatic hydrocarbons (PAHs) was investigated in two industrial towns in Upper Silesia, Poland. The 24 h samples of PM2.5 (particles with aerodynamic diameter ≤ 2.5 µm) were collected simultaneously at busy roads (or crossroads) and at an urban background site. Additionally, the samples were collected during the heaviest traffic density (rush ...


    By Inderscience Publishers

  • Energy efficiency and emission reduction of TPM, PM2.5, and SO2 from natural gas and fuel oil fired boiler exhausts

    Fully 8% of all of Canada’s energy consumption occurs in gas and fuel oil fired boilers in commercial and institutional facilities1, with proportional amounts of greenhouse gases, particulate matter, and other pollutants. Recently particulate matter, and in particular that smaller than 2.5 microns (PM2.5) has garnered specific attention due to attributed health effects as demonstrated by ...

  • Global environmental impacts of the hydrogen economy

    Hydrogen-based energy systems appear to be an attractive proposition in providing a future replacement for the current fossil-fuel based energy systems. Hydrogen is an important, though little studied, trace component of the atmosphere. It is present at the mixing ratio of about 510 ppb currently and has important man-made and natural sources. Because hydrogen reacts with tropospheric hydroxyl ...


    By Inderscience Publishers

  • Including ecotoxic impacts on warm‐blooded predators in life cycle impact assessment

    In current life cycle impact assessment, the focus of ecotoxicity is on cold‐blooded species. We developed a method to calculate characterization factors (CFs) for the impact assessment of chemical emissions on warm‐blooded predators in freshwater food chains. The method was applied to 329 organic chemicals. The CF for these predators was defined as a multiplication of the fate factor (FF), ...


    By John Wiley & Sons, Ltd.

  • The impact of privatisation on the sustainability of water resources

    More than two and a half millennia ago, the Greek philosopher Thales of Miletus said  “best of everything is water” (Biswas, 2005; p.229). Indeed, water still remains the source of life although the world has changed dramatically. Water is the most important natural resource on our planet Earth. It is the basis of life that all organisms depend on for survival. ...


    By IWA Publishing

  • Impact of pH on Derivatization of Nitrophenol Compounds

    Our goal of evaluating the Normalized French Environmental Method 12673 required testing the method’s ability to derivatize nitrophenols and alkylphenols in addition to the chlorophenols the method was designed for. Unfortunately, nitrophenols proved challenging to derivatize at low concentrations. In an effort to improve the derivatization of nitrophenols, we experimented with the pH of ...


    By Restek Corporation

  • Differential impacts of smoke-free laws on indoor air quality

    The authors assessed the impacts of two different smoke-free laws on indoor air quality. They compared the indoor air quality of 10 hospitality venues in Lexington and Louisville, Kentucky, before and after the smoke-free laws went into effect. Real-time measurements of particulate matter with aerodynamic diameter of 2.5 µm or smaller (PM2.5) were made. One Lexington establishment was excluded ...

  • The jobs impact of GHG reduction strategies in the USA

    This paper estimates the economic and jobs impact of the USA displacing 1.2 billion tons of carbon emissions annually by 2030 using energy efficiency and renewable energy. We assess the technologies deployed, their costs, and the necessary time frames. We then estimate the job impacts of the policy and find that it will generate more than 4.5 million net jobs. We disaggregate the jobs created by ...


    By Inderscience Publishers

  • Final survey for the KALAHI-CIDSS impact evaluation

    Kapit-Bisig Laban Sa Kahirapan-Comprehensive and Integrated Delivery of Social Services (KALAHI-CIDSS) Project was set up in 2002 to alleviate rural poverty. The project seeks to achieve this by providing resources to poor rural municipalities for investment in public goods and by reviving local institutions for people's participation in governance. KALAHI-CIDSS is targeted at the poorest 25 ...


    By IWA Publishing

  • Assessing the environmental impact of the water footprint in Beijing, China

    Beijing is experiencing a shortage of water resources. Its rapid development and dense population have caused an extreme demand for water. This study quantifies the water footprint of Beijing at the sectoral level using a modified input–output model and estimates the impacts of freshwater use by life cycle impact assessment. The results suggest that the main water source of Beijing industries ...


    By IWA Publishing

  • Impact of critical source area on AnnAGNPS simulation

    The objective of this paper is to study the impact of critical source area (CSA) within an Annualized AGricultural Non-Point Source pollution models (AnnAGNPS) simulation at medium- large watershed scale. The impact of CSA on terrain attributes is examined by comparing six sets of CSA (0.5, 1, 2, 4, 6 and 8 km2). The accuracy of AnnAGNPS stimulation on runoff, sediment and nutrient loads on these ...


    By IWA Publishing

  • Impact lead the way in paper and glass separation

    Impact Air Systems was recently contacted by one of the UK's leading recycling led waste management companies to help them improve the process following the recent introduction of domestic glass into the material stream. The company involved have requested to remain anonymous, but currently operate 6 large scale operations in the UK.   We were called to their facility in the West ...


    By Impact Air Systems

  • Impacts of Climate Change on the Occurrence of Harmful Algal Blooms

    Climate change has been occurring naturally as well as caused by anthropogenic activities over the decades. In relation to the fresh and marine water, the concentration of greenhouse gases results in temperature rise of surface water, lower pH and changes to precipitation, evaporation and vertical mixing of water. All these consequences of changing the environment in combination with excessive ...


    By LG Sonic

  • Assessing the Impacts of the Iran Nuclear Deal on Climate Change

    Introduction On July 14, 2015, the international economic boycott levied against Iran was scheduled to conclude. In concert with the European Union and the P5+1, the Islamic Republic agreed to a Joint Comprehensive Plan of Action (JCPOA) whereby its capacity for nuclear development would be dramatically curtailed. Among other requirements, Iran is mandated, for a period of 15 years, to ...


    By Climate Institute

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