air pollution Articles
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How air pollution affects office workers—and the economy
FOR anyone who has tried jogging through smog, the physically sapping impacts of air pollution should come as no surprise. But pollution doesn’t just slow down runners, it hampers workers too. Research by Tom Chang of the University of Southern California and colleagues found that pear packers working indoors were slowed by air pollution even at levels well below current air-quality ...
By Camfil Ltd
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Why Air Quality Monitoring Matters
Air pollution causes premature deaths and has significant consequences on the global economy. This has been presented in several reports recently. Air pollution has emerged as the fourth-leading risk factor for deaths worldwide. The World Bank states that 1 in 10 deaths worldwide is caused by air pollution exposure. In the report The Cost of Air Pollution: Strengthening the Economic Case for ...
By OPSIS AB
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Types of Air Pollutants
Indoor air quality is vital to human health. Having high-quality indoor air helps humans live, breathe and work better. However, many common air contaminants can make their way into indoor environments, putting occupants at risk of both short- and long-term health effects. This guide to the types of air pollutants will help educate professionals on the sources of air pollutants that may ...
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Evaluation of air pollution trends in Istanbul
Previously, SO2 and PM10 (particulate matter less than 10 Bm in size) concentration distributions have been investigated in order to assess air pollution in Istanbul during the winter season (November–March) in which the concentration of these pollutants had reached formidably high levels due to the consumption of low-quality fuels (mainly coal) for residential heating. In this study, the effect ...
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Refinery MACT II Compliance – Are We There Yet?
Refinery MACT II, 40 CFR Part 63 Subpart UUU, was published in Federal Register on April 12, 2002 by the U.S. Environmental Protection Agency (EPA). This rule, as a subpart of the National Emission Standards for Hazardous Air Pollutants (NESHAP), controls hazardous air pollutants from catalytic cracking units (CCU), catalytic reforming unit (CRU), sulfur recovery units (SRU), and bypass lines ...
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Development of a low-rise industrial source dispersion model
In Japan, with amendment of the Air Pollution Control Law in May 1996, various substances, including benzene and trichloroethylene, were newly designated as hazardous air pollutants, and environmental standards were established. In this situation, it is necessary to develop a dispersion model that is applicable to environmental impact assessment of industrial areas with a complex of factory ...
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Analysis of the impact of the new Athens airport on urban air quality with contemporary air pollution models
The new airport of Athens will be constructed in the Spata area to the east of the Athens basin. In an attempt to reveal how the airport operation will influence air quality in Athens, the transport of air pollutants in the Athens basin and the Spata area is studied by applying a set of contemporary models, all constituents of the European Zooming Model (EZM). Simulations were performed for ...
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Air quality in Europe — 2012 report
'Air pollution is bad for our health. It reduces human life expectancy by more than eight months on average and by more than two years in the most polluted cities and regions. Member States must comply with EU air quality standards quickly and reduce air pollutant emissions,' Janez Potočnik, EU Commissioner for the Environment (EU, 2010a). Emissions of air pollutants derive from almost all ...
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Particulate matter from natural sources and related reporting under the EU Air Quality Directive in 2008 and 2009
Much of the air pollution that damages human health and the environment today is the result of human activities. But natural sources also emitt air pollutants, contributing to the exposure of European citizens and ecosystems to bad air quality — and potentially undermining EU Member State efforts to meet the air quality standards set out in EU legislation. Recognising the challenge ...
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Facing the New Emission Standards for Hydrochloric Acid Pickling
The U.S. Environmental Protection Agency (EPA) has developed a new regulation to reduce hazardous air pollutant (HAP) emissions from facilities that pickle carbon steel using hydrochloric acid (HCl) solution as well as from associated HCl regeneration plants. This regulation, the National Emission Standards for Hazardous Air Pollutants for Steel Pickling – HCl Process Facilities and HCl Acid ...
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Methodology for developing an air quality index (AQI) for Tunisia
Air quality index (AQI) is a quantitative tool through which air pollution data can be reported, providing information on how clean or polluted the air is. Several countries employ some type of air quality index to communicate the quality of their air. Some of these systems rely on relating measured (monitored) or predicted concentrations of air pollutants (results of modelling system). In this ...
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EPA moves closer to GHG control
EPA has put itself on the path toward greenhouse gas regulation, but in Congress, the courts, and the international community, the debate rages on. On Dec. 7, 2009, EPA moved one step closer to imposing the first ever set of enforceable greenhouse gas (GHG) standards on tailpipe emissions from vehicles, and a requirement that large power plants and industrial emitters install best available ...
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Air pollution and the influence of sources on Paulinia (Brazil) and surroundings
The air quality in the industrial area and surroundings of the city of Paulinia (state of Sao Paulo, Brazil) has been investigated by analysing the concentration of air pollutants (SO2, PM10, NO, NO2, CO and ozone) and identifying the main sources of air pollution. A mobile pollutant monitoring unit was used to collect the data at five different sites from November 2000 to July 2002. Critical ...
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Understanding the Connection Between Air Pollution and COVID-19
It’s known that air pollution is a contributing factor to a vast majority of respiratory health issues [1], so it’s not surprising that researchers are exploring the relationship between areas with high air pollution and the elevated health risks associated with COVID-19, the respiratory disease caused by the novel coronavirus. For those already facing compromised health conditions, ...
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Trends of exhaust emissions from gasoline motor vehicles in the metropolitan area of Mexico city
Light duty gasoline vehicles account for most of CO, hydrocarbons and NOx emissions to the urban environment in the metropolitan area of Mexico City. In order to ameliorate air pollution, several control measures have been imposed in the last decade, such as: up-grade of gasoline's quality, stringent environmental standards, and catalytic converters. On the other hand and from the beginning of ...
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The Reality and Implications of SSM and NESHAPs
In this edition of ALL4's 4 The Record newsletter, The Reality and Implications of SSM and NESHAPs, Roy R., Eric S., and Mark W. discuss the recent changes to the National Emission Standards for Hazardous Air Pollutants (NESHAP) rule and how that applies to facilities. The article takes you through what NESHAPs means for compliance during operational periods outside of normal operations, ...
By All4 Inc.
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Affirmative Defense is Vacated for the Cement Industry
I wrote a blog back in February that was intended to raise the awareness level of the cement industry regarding new requirements for their MACT operations and maintenance (O&M) plans. As part of addressing action items related to that blog, many owners/operators that are affected by 40 CFR Part 63, Subpart LLL – National Emission Standards for Hazardous Air Pollutants (NESHAP) From the ...
By All4 Inc.
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Defeat Devices Could Cost Volkswagen $18 billion
Can you cheat compliance? Volkswagen AG, Audi AG, and Volkswagen Group of America, Inc. (Volkswagen) recently discovered that the answer is “no.” On September 18, 2015, the U.S. Environmental Protection Agency (EPA) issued a Notice of Violation (NOV) of the federal Clean Air Act (CAA) to Volkswagen after discovering diesel cars from model years 2009 to 2015 contain software that ...
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Atmospheric dispersion models for regulatory purposes in the Federal Republic of Germany. Part II: the current situation
This paper starts with some remarks on the present air pollution situation in Germany. The air quality standards will be presented and compared with data from the continuous monitoring network stations. Subsequently a short description of the tools in use for regulatory applications is given. The quality of these tools and their status of validation are critically discussed. Finally, conclusions ...
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On PM 2.5 Filters, Let’s just clear the air between us; ok?
In the area of a former military building complex in the Chaoyang District of Beijing is a unique and thriving artistic community. In the middle of this art district, is a strange 7-meter tall tower shaped like an avant-garde metallic pineapple. Designed by Dutch artist Daan Roosegaarde, it is both an artistic creation and a functional tool meant to test a possible solution for Beijing’s ...
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