scholarly journals Characterisation of solvent extractable organic constituents in atmospheric particulate matter: an overview

2008 ◽  
Vol 80 (1) ◽  
pp. 21-82 ◽  
Author(s):  
Célia A. Alves
Keyword(s):  
Particulate Matter ◽  
Organic Compounds ◽  
Atmospheric Aerosols ◽  
Current Knowledge ◽  
Atmospheric Particulate Matter ◽  
Aerosol Formation ◽  
Atmospheric Particulate ◽  
Organic Constituents ◽  
Geochemical Parameters ◽  
The Impact

In spite of accounting for 10-70% of the atmospheric aerosol mass, particulate-phase organic compounds are not well characterised, and many aspects of aerosol formation and evolution are still unknown. The growing awareness of the impact of particulate aerosols on climate, and the incompletely recognised but serious effects of anthropogenic constituents on air quality and human health, have conducted to several scientific studies. These investigations have provided information about the behaviour of atmospheric particulate matter and the description of the character of its carbonaceous content. The compilation of such results is important as they append to the emergent global-wide dataset of the organic composition of atmospheric aerosols. The contribution of the major emission sources to regional particulate pollution can be diagnosed by using specific molecular markers. This overview is mainly focused on results obtained with gas chromatography coupled with mass spectrometry, since it is the analytical method of choice in elucidating the solvent-extractable organic compounds in atmospheric particulate matter. A synopsis of the selection of organic tracers and the application of geochemical parameters to the analysis of organic constituents as a tool for source apportionment is shown here. Besides the assessment of current knowledge, this paper also presents the identification of further areas of concern.

The organic constituents of atmospheric particulate matter

1976 ◽  
Vol 10 (8) ◽  
pp. 603-610 ◽  
Author(s):  
Grigorios Ketseridis ◽  
Jürgen Hahn ◽  
Ruprecht Jaenicke ◽  
Christian Junge
Keyword(s):  
Particulate Matter ◽  
Atmospheric Particulate Matter ◽  
Atmospheric Particulate ◽  
Organic Constituents

scholarly journals Secondary Organic Aerosol Formation from Gasoline and Diesel Vehicle Exhaust under Light and Dark Condition

2021 ◽  
Author(s):  
Yu Morino ◽  
Ying Li ◽  
Yuji Fujitani ◽  
Kei Sato ◽  
Satoshi Inomata ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Atmospheric Particulate Matter ◽  
Urban Air ◽  
Dark Condition ◽  
Aerosol Formation ◽  
Vehicle Exhaust ◽  
Atmospheric Particulate ◽  
Diesel Vehicle

Secondary organic aerosol (SOA) formed from vehicle exhaust contributes substantially to the atmospheric particulate matter in urban air but there still remain uncertainties in the simulation of the SOA by...

Selected organic compounds from biomass burning found in the atmospheric particulate matter over sugarcane plantation areas

2002 ◽  
Vol 36 (18) ◽  
pp. 3009-3019 ◽  
Author(s):  
Celeste Yara Moreira dos Santos ◽  
Débora de Almeida Azevedo ◽  
Francisco Radler de Aquino Neto
Keyword(s):  
Particulate Matter ◽  
Organic Compounds ◽  
Biomass Burning ◽  
Atmospheric Particulate Matter ◽  
Atmospheric Particulate

scholarly journals Resource and physiological constraints on global crop production enhancements from atmospheric particulate matter and nitrogen deposition

2018 ◽  
Author(s):  
Luke D. Schiferl ◽  
Colette L. Heald ◽  
David Kelly
Keyword(s):  
Particulate Matter ◽  
Nitrogen Deposition ◽  
Atmospheric Chemistry ◽  
Crop Production ◽  
Crop Model ◽  
Atmospheric Particulate Matter ◽  
Atmospheric Composition ◽  
Soil System ◽  
Atmospheric Particulate ◽  
The Impact

Abstract. Changing atmospheric composition, induced primarily by industrialization and climate change, can impact plant health and may have implications for global food security. Atmospheric particulate matter (PM) can enhance crop production through the redistribution of light from sunlight to shaded leaves. Nitrogen transported through the atmosphere can also increase crop production when deposited onto cropland by reducing nutrient limitations in these areas. We employ a crop model (pDSSAT), coupled to input from an atmospheric chemistry model (GEOS-Chem), to predict the impact of PM and nitrogen deposition on crop production. In particular, the crop model considers the resource and physiological restrictions to enhancements in growth from these atmospheric inputs. We find that the global enhancement in crop production due to PM in 2010 under the most realistic scenario is 2.3 %, 11.0 %, and 3.4 % for maize, wheat, and rice, respectively. These crop enhancements are smaller than those previously found when resource restrictions were not accounted for. Using the same model setup, we assess the effect of nitrogen deposition on crops and find modest increases (~ 2 % in global production for all three crops). This study highlights the need for better observations of the impacts of PM on crop growth and the cycling of nitrogen throughout the plant-soil system to reduce uncertainty in these interactions.

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