Sampling and single particle analysis for the chemical characterisation of fine atmospheric particulates: A review

Elmes, Michele; Gasparon, Massimo

doi:10.1016/j.jenvman.2017.06.067

Cited by 45 publications

(35 citation statements)

References 130 publications

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“…Therefore, it is of great importance to understand the characteristics of atmospheric aerosol pollution and their impact on the environment by studying the particle size, spectral distribution and chemical composition of atmospheric aerosols [8]. In recent years, with the acceleration of climate change and the expansion of urbanization, various environmental problems and their impact on human health have also received the attention of the scientific community [9,10,11,12,13,14,15,16,17,18,19,20,21].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Characteristics and Particle-size Distributions of Particulate Air Pollutants in Urumqi

Meng

Pan

et al. 2019

IJERPH

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Urban particulate air pollution is a known cause of adverse human health effects worldwide. Urumqi is a large oasis city in which rapid urbanization has caused a series of eco-environmental problems including serious air pollution, water shortage, dense population, excess energy consumption, and the creation of an urban heat island, among others. Coal is the most important source of energy and air pollutants that are poorly dispersed into the natural surroundings are the main reasons for serious pollution in the Urumqi urban area. Using differential optical absorption spectroscopy (DOAS), aerosol levels were determined using the double optical path method. We found that aerosol concentrations in Urumqi increased rapidly in winter, and that the concentration of fine particles was much higher than that of coarse particles. The background aerosol concentration was highest in winter in the research area, and the air-flow speed had a significant impact on this because high speed surface winds that correspond to high air flows can transport the aerosol to other places. Some of the observed day-to-night differences may be caused by differing wind directions that transport air masses from different emission sources during the day and the night. Daily and seasonal differences in PM1.0 concentrations of different grades of polluted air were statistically analyzed using average daily concentration data for particles smaller than 10, 2.5 and 1.0 microns (PM10, PM2.5 and PM1.0), and meteorological observations for Urumqi, Tianshan District in 2010.

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Section: Introductionmentioning

confidence: 99%

Seasonal Characteristics and Particle-size Distributions of Particulate Air Pollutants in Urumqi

Meng

Pan

et al. 2019

IJERPH

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“…Nanoscale particles (dimension < 100 nm) can access the bloodstream by penetrating the alveolar epithelium. Further, these ultrafine particles have increased inflammatory potential in addition to a large deposition efficiency within the pulmonary system [24].…”

Section: Discussionmentioning

confidence: 99%

Analysis of Stainless Steel Waste Products Generated during Laser Cutting in Nitrogen Atmosphere

Zubko

Loskot

Świec

et al. 2020

Metals

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Laser cutting technology is one of the basic approaches used for thermal processing of parts fabricated from almost all engineering materials. Various types of lasers are utilized in the industry with different attendant gases such as nitrogen or argon. When the laser beam interacts with a metal surface, the area underneath is heated to the melting point. This liquid or vaporized metal is ejected from the kerf area to the surrounding atmosphere by attendant gas and becomes undesirable waste in the form of powder. In the presented work, the X-ray diffraction, scanning electron microscopy, electron backscatter diffraction, transmission electron microscopy, and energy-dispersive X-ray spectroscopy methods were used to analyze AISI 304 stainless steel, which was cut by a semiconductor fiber laser, and the waste powder generated during the laser cutting process. The results suggest that this waste material may be reused for industrial applications such as additive manufacturing.

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“…There are a variety of instruments and techniques used to sample atmospheric deposition. Many overviews are available regarding atmospheric deposition sampling techniques, instrumentation, and analytical methods that can help build research designs appropriate to CUAs (Amodio et al, 2014;Dämmgen et al, 2005;Elmes & Gasparon, 2017;Grynkiewicz et al, 2003;Popoola, Adebanjo, & Adeoye, 2018). These do not yet appear to have been fully integrated into TE contamination research for CUAs.…”

Section: Studies On Trace Element Atmospheric Deposition In Cultivatementioning

confidence: 99%

Atmospheric sources of trace element contamination in cultivated urban areas: A review

Mauro

2020

J of Env Quality

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Producing food in cities has garnered increasing attention over the past decade. Although there are ecological and social benefits, cultivated urban areas (CUAs) also bear contamination hazards, including from trace elements (TEs). Trace element contamination has been studied extensively in CUAs, but atmospheric sources remain understudied and poorly understood. A brief discussion is offered on atmospheric particulate deposition processes in cities and their implications for urban food production. Available findings are discussed and contrasted. Existing research assesses atmospheric deposition indirectly or otherwise lacks controls for other TE contaminants. There is little to no engagement with methodological guidelines from the atmospheric sciences, which reduces confidence in the findings so far attained. Suggestions are delineated to combine techniques used in the atmospheric sciences with the robust methodologies already generated by studies on TE contamination in CUAs, such as isotope and TE ratios analyses.

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Sampling and single particle analysis for the chemical characterisation of fine atmospheric particulates: A review

Cited by 45 publications

References 130 publications

Seasonal Characteristics and Particle-size Distributions of Particulate Air Pollutants in Urumqi

Seasonal Characteristics and Particle-size Distributions of Particulate Air Pollutants in Urumqi

Analysis of Stainless Steel Waste Products Generated during Laser Cutting in Nitrogen Atmosphere

Atmospheric sources of trace element contamination in cultivated urban areas: A review

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