10 results match your criteria Aerosol And Air Quality Research[Journal]

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Differentiating between local and remote pollution over Taiwan.

Aerosol Air Qual Res 2018 Jul 20;18(7):1788-1798. Epub 2018 Jun 20.

School of Geosciences, Tel-Aviv University, Tel-Aviv, Israel.

In this study, an approach has been developed for differentiating between local and remote pollution over Taiwan, based on homogeneity perspective (variations of the standard deviation) of both AERONET measurements and NASA MERRA aerosol reanalysis (version 2, MERRA-2) over a 15-year period (2002 - 2017). The analysis of seasonal variations of the standard deviation of aerosol optical depth (AOD) measurements at six AERONET sites and MERRA AOD data in Taiwan showed that, in spring when remote aerosols dominate, the standard deviation is almost three times lower than that in autumn, when aerosols from local sources dominate. This finding was supported by MERRA AOD over the open ocean area: total AOD data were used to differentiate between local and remote pollution over both Taiwan and the open ocean area in the vicinity of Taiwan. Read More

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http://dx.doi.org/10.4209/aaqr.2017.10.0378DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7323735PMC

Regional characteristics of NO column densities from Pandora observations during the MAPS-Seoul campaign.

Aerosol Air Qual Res 2019 Nov;18(9):2207-2219

School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea.

Vertical column density (VCD) of nitrogen dioxide (NO2) was measured using Pandora spectrometers at six sites on the Korean Peninsula during the Megacity Air Pollution Studies-Seoul (MAPS-Seoul) campaign from May to June 2015. To estimate the tropospheric NO VCD, the stratospheric NO VCD from the Ozone Monitoring Instrument (OMI) was subtracted from the total NO VCD from Pandora. European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis wind data was used to analyze variations in tropospheric NO VCD caused by wind patterns at each site. Read More

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http://dx.doi.org/10.4209/aaqr.2017.09.0341DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6839696PMC
November 2019

On the Morphology and Composition of Particulate Matter in an Urban Environment.

Aerosol Air Qual Res 2018 Sep;18(6):1431-1447

Institute of Space Technology (IST), Islamabad, Pakistan.

Particulate matter (PM) plays a vital role in altering air quality, human health, and climate change. There are sparse data relevant to PM characteristics in urban environments of the Middle East, including Peshawar city in Pakistan. This work reports on the morphology and composition of PM in two size fractions (PM and PM) during November 2016 in Peshawar. Read More

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http://www.aaqr.org/doi/10.4209/aaqr.2017.09.0340
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http://dx.doi.org/10.4209/aaqr.2017.09.0340DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6192059PMC
September 2018
19 Reads
2.094 Impact Factor

Spatial Variation of Ground Level Ozone Concentrations and its Health Impacts in an Urban Area in India.

Aerosol Air Qual Res 2017 ;17(4):951-964

Department of Mining Engineering, National Institute of Technology, Rourkela, Odisha-769008, India.

The present study was designed to analyze the spatial distributions of ground-level ozone (GLO) concentrations in Ranchi (Jharkhand, India) using geostatistical approaches. From September 2014 to August 2015, monthly GLO concentrations were monitored in 40-identified locations distributed in the region of study. In every month, the monitoring was done at three different time periods of the day; 5. Read More

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http://dx.doi.org/10.4209/aaqr.2016.08.0374DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5638130PMC
January 2017
12 Reads

Comparison of PM Exposure in Hazy and Non-Hazy Days in Nanjing, China.

Aerosol Air Qual Res 2017 Sep;17(9):2235-2246

Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964, USA.

Fine particulate matter (PM), levels of which are about 6 times the 2014 WHO air quality guidelines for 190 cities in China, has been found to be associated with various adverse health outcomes. In this study, personal PM exposures were monitored along a fixed routine that included 19 types of non-residential micro-environments (MEs) on 4 hazy days (ambient PM 292 ± 70 μg m) and 2 non-hazy days (55 ± 16 μg m) in Nanjing, China using miniaturized real-time portable particulate sensors that also collect integrated filters of PM (MicroPEMs, Research Triangle Institute (RTI), NC). Gravimetric correction is necessary for nephelometer devices in calculating real-time PM levels. Read More

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http://dx.doi.org/10.4209/aaqr.2016.07.0301DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6301043PMC
September 2017
32 Reads

Characterizing Particle Size Distributions of Crystalline Silica in Gold Mine Dust.

Aerosol Air Qual Res 2017 Jan;17(1):24-33

Pittsburgh Mining Research Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Pittsburgh, PA 15236, USA.

Dust containing crystalline silica is common in mining environments in the U.S. and around the world. Read More

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http://dx.doi.org/10.4209/aaqr.2016.05.0179DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5315417PMC
January 2017
19 Reads

Evaluation of PM surface concentration simulated by Version 1 of the NASA's MERRA Aerosol Reanalysis over Israel and Taiwan.

Aerosol Air Qual Res 2017 Jan 1;17(1):253-261. Epub 2017 Jan 1.

Department of Atmospheric Sciences, National Central University, Taoyuan, Taiwan.

Version 1 of the NASA MERRA Aerosol Reanalysis (MERRAero) assimilates bias-corrected aerosol optical depth (AOD) data from MODIS-Terra and MODIS-Aqua, and simulates particulate matter (PM) concentration data to reproduce a consistent database of AOD and PM concentration around the world from 2002 to the end of 2015. The purpose of this paper is to evaluate MERRAero's simulation of fine PM concentration against surface measurements in two regions of the world with relatively high levels of PM concentration but with profoundly different PM composition, those of Israel and Taiwan. Being surrounded by major deserts, Israel's PM load is characterized by a significant contribution of mineral dust, and secondary contributions of sea salt particles, given its proximity to the Mediterranean Sea, and sulfate particles originating from Israel's own urban activities and transported from Europe. Read More

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http://dx.doi.org/10.4209/aaqr.2016.04.0145DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5901751PMC
January 2017
3 Reads

Measurement of Soluble and Total Hexavalent Chromium in the Ambient Airborne Particles in New Jersey.

Aerosol Air Qual Res 2014 Dec;14(7):1939-1949

Rutgers Environmental and Occupational Health Science Institute, Piscataway, New Jersey 08854, USA.

Hexavalent chromium (Cr(VI)) in ambient airborne particulate matter (PM) is a known pulmonary carcinogen and may have both soluble and insoluble forms. The sum of the two forms is defined as total Cr(VI). Currently, there were no methods suitable for large-scale monitoring of total Cr(VI) in ambient PM. Read More

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http://www.aaqr.org/doi/10.4209/aaqr.2013.10.0312
Publisher Site
http://dx.doi.org/10.4209/aaqr.2013.10.0312DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4480920PMC
December 2014
15 Reads

Validation of MicroAeth® as a Black Carbon Monitor for Fixed-Site Measurement and Optimization for Personal Exposure Characterization.

Aerosol Air Qual Res 2014 Feb;14(1):1-9

Lamont-Doherty Earth Observatory of Columbia University, New York, NY, USA.

This paper reports on validation experiments with the recently developed microAeth®, a pocket-sized device which is able to obtain real-time and personal measurements of black carbon (BC) aerosol. High reproducibility was observed when comparing the results from six new individual units during fixed-site monitoring out of a window (relative standard deviation [RSD] = 8% ± 5%, N = 1442). The results obtained from the microAeth devices agreed with those obtained from a full size rack mounted Aethalometer, based on both the 1-minute data (R = 0. Read More

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http://dx.doi.org/10.4209/aaqr.2013.03.0088DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4240508PMC
February 2014
17 Reads

Correction factor for continuous monitoring of wood smoke fine particulate matter.

Aerosol Air Qual Res 2011 Jun;11(3):315-322

Center for Environmental Health Sciences, Department of Biomedical and Pharmaceutical Sciences, The University of Montana, 32 Campus Drive, Missoula, Montana, 59812, U.S.A.

The US Environmental Protection Agency (EPA) has designated a handful of instruments as Federal Reference or Federal Equivalency Methods (FRM and FEM, respectively) for the monitoring of fine particulate matter (PM). More commonly used for indoor exposure assessment studies are optical scanning devices such as the DustTrak (TSI) due to the their portability and affordability. It is recommended by the manufacturer of these instruments that a "correction factor" be applied when assessing source-specific conditions. Read More

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http://dx.doi.org/10.4209/aaqr.2010.08.0072DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4214921PMC
June 2011
13 Reads
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