air particulate Articles
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Genotoxicity evaluation of atmospheric environments of subway stations in Seoul using Tradescantia micronucleus assay
Airborne pollutants in subway facilities can be harmful to passengers. This study was done to examine whether the suspended particulates have clastogenic effects on the biological systems. Total suspended particulates were collected from subway stations in Seoul. Aqueous extracts from the particulates were tested with the Tradescantia micronucleus assay. All the plant cuttings exposed to the ...
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New Advances in Wet Scrubbing Improvements in Efficiencies
Of all the air pollution abatement technologies, wet scrubbing systems remain the most versatile and cost efficient. New, patented advances in venturi scrubbing of air particulate, aerosols and gases easily achieves removal efficiencies greater than 99% for particulate and aerosols less than 3 Fm. Sub-micron particles present a special concern because they cause (at the very least) irritation of ...
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Air Particulate Monitoring – PM1
What is PM1 “PM” (Particulate Matter) is not a single pollutant but refers to a complex mixture of solids and aerosols. Which are of varying shape, size, and chemical composition. Which may contain many chemical species like organic compounds, inorganic ios, metallic compounds, elementary carbon, etc. These atmospheric particles are definable by their diameter for air quality ...
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Using the exhaled breath condensate as a tool for non-invasive evaluation of pollutant exposure
The aim of the present study was to investigate whether Exhaled Breath Condensate (EBC) can be employed for a better risk assessment among human exposure to heavy metals. The objective was to develop a human bioindicator to be applicable for professional exposure that, compared with other common indicators, presents important advantages: it is non-invasive and it is easily and quickly collected. ...
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Rapid estimation of nuclear magnetic resonance experiment time in low‐concentration environmental samples
Nuclear magnetic resonance (NMR) spectroscopy is an essential tool for studying environmental samples but is often hindered by low sensitivity, especially for the direct detection of nuclei such as 13C. In very heterogeneous samples with NMR nuclei at low abundance, such as soils, sediments, and air particulates, it can take days to acquire a conventional 13C spectrum. The present study ...
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Modelling long-term averages of local ambient air pollution in Oslo, Norway: evaluation of nitrogen dioxide, PM10 and PM2.5
Large seasonal variations in climate as in Norway give challenges for air pollution modelling, especially of Particulate Matter (PM) that seldom has been evaluated. The EPISODE model calculated ambient concentrations of nitrogen dioxide (NO2), PM with diameter Keywords: evaluation, modelling, long-term averages, ambient air pollution, nitrogen dioxide, particulate matter, air quality, ...
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Air pollution and restricted activity days among New Zealand school children and staff
Particulate Matter (PM) air pollution has been associated with a variety of adverse health effects. However, the influence of exposure to particulate pollution on non-notifiable health outcomes such as individual-level restricted activity is less well understood. Days absent from work or school were collected for 2257 students and teachers at eight secondary schools in Christchurch, New Zealand. ...
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Seasonal apportionment of the sources of ambient air particulates in the city of Trieste
A PCA/APCS model was applied to PM2.5 data, which were collected for the Svevo and Muggia districts of the City of Trieste. The sampling campaigns covered the winter and summer periods of 2006. The set of investigated species comprised major inorganic ions, organic and elemental carbon and several Polyaromatic Hydrocarbons (PAHs) that were considered as probable or possible carcinogens by ...
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Cytiva - Whatman™ glass fiber (GF) tape improves data collection in continuous air monitoring
Find out why using glass fiber filter tape can support reliable measurement of particulate matter in continuous air monitoring research, offering increased efficiency and consistency during data collection and analysis. From companies needing to regulate the number of particulates released from their plants, to government agencies such as the US Environmental Protection Agency (EPA) studying ...
By Cytiva
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`Major Stationary Sources - What’s New, What’s Changing and What to Do About It,` presented at the 2006 PA Chamber Annual Environmental Laws and Regulations conference
Clean Air Mercury Rule(CAMR) Session Objectives Background on CAMR Rule NSPS & Cap-and-Trade Program Monitoring and Controlling HgEmissions Pennsylvania’s Proposed Hg Rule Clean Air Rules Clean Air Nonroad Diesel Rule Clean Air Ozone Rules 8-hour ozone Clean Air Fine Particulate Rules 8-hour PM2.5 Clean Air Interstate Rule (CAIR) Market-Based, Cap ...
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Study of polycyclic aromatic hydrocarbons in atmospheric particulate matter of an urban area with iron and steel mills
Polycyclic aromatic hydrocarbons (PAHs) were analyzed from ambient air particulate matter <10 µm (PM10) and the total suspended particulate (TSP) phase continuously for a period of six months (May–October 2010) at five sampling sites located in the urban area of Divinópolis (Minas Gerais), southeastern Brazil, near iron and steel mills. The carcinogenic potency of priority PAHs relative to ...
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The study of temple and pastureland particle-bound polycyclic aromatic hydrocarbons concentrations in central Taiwan
The concentrations of polycyclic aromatic hydrocarbons in the atmosphere were measured simultaneously at Tzu Yun Yen temple and Tung Hai University pastureland in Taichung, central Taiwan. At both sites, 24 h samplings were performed between August 2001 and December 2001. The results indicated that high molecular mass polycyclic aromatic hydrocarbons are predominant at the Tzu Yun Yen temple ...
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A demonstration of the necessity and feasibility of using a clumsy decision analytic approach on wicked environmental problems
Since controversy, conflict, and lawsuits frequently characterize U.S. Environmental Protection Agency's (USEPA) decisions, it is important that USEPA decision makers understand how to evaluate and then make decisions that have simultaneously science‐based, social and political implications. Air quality management is one category of multi‐dimensional decision making at USEPA. The Philadelphia, ...
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The 2006 Critical Review Discussion -- Health Effects of Fine Particulate Air Pollution: Lines that Connect
Herein is the discussion of the 2006 A&WMA Critical Review1,2 on “Health Effects of Fine Particulate Air Pollution: Lines that Connect.” In the review, Drs. C. Arden Pope III and Douglas Dockery addressed the epidemiological evidence for the effects of particulate matter (PM) on human health indicators. The review documents substantial progress since the 1997 Critical Review3 in the areas ...
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China’s response to air pollution poses threat to water
Record-setting levels of smog this week shut down Harbin, a city of 11 million people in northeast China. Officials blamed increased coal consumption during the first days of winter heating, underscoring the urgency of the China State Council’s recently announced initiative to address persistent smog in major cities. But while the Air Pollution Control Action Plan has ambitious ...
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Analysis of point source emissions in the Texas-Mexico border region
Pollutant emissions in the Texas-Mexico border were investigated using an emission database that covers 25 Texas counties and the states of Coahuila, Chihuahua, Nuevo Leon and Tamaulipas in Mexico. Major emissions are from energy generation, mainly from two coal-fired facilities in Coahuila, which also generate most of carbon dioxide. Texas exhibits a larger concentration of sources; around ...
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Health Impacts of Transported Global Air Pollution and International Trade
Globalization moves production and health problems to low cost countries such as China. Estimations show that 3.45 millions of deaths of people yearly are caused by PM2.5 particulate matter in the ambient air. 760.000 of these deaths are caused by production of goods in one continent for use in another continent. ...
By OPSIS AB
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Seasonal variation in suspended particulate matter vis-a-vis meteorological parameters at Kolar Gold Fields, India
Particulate matter concentrations and meteorological parameters were monitored to assess the impact of other industries likely to be set up at Kolar Gold Fields, India. Particulate matter less than 10 µm was the highest in winter due to the influence of gold mill tailings dumps while total suspended particulate matter was generally higher in spring probably due to the influence of uncovered area ...
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HEPA filter emission monitoring for pharmaceutical powder processing - Case Study
Material: Powder Dust Loadings: Less than 0.5 mg/m3 Installation: LEAK ALERT 65-02 post vacuum pump Filter Type: HEPA (High efficiency particulate air) ...
By ENVEA
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Dust monitoring with ProSens on clean gas side - Case Study
Application An international mining company extracts minerals under ground for the fabrication of fertilizers. For the long term improvement and safety of the structure stability fi llings and binders (dry bulks) with defi ned recipes are injected locally into former mining cavities. These materials are delivered above ground, stored in silos and afterwards transported in a closed-pipe ...
By ENVEA
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