New particle formation from agricultural recycling of organic waste products

Abstract Secondary organic aerosols (SOA) are one of the main sources of uncertainty in the current understanding of the Earth’s climate. Agriculture contributes to primary aerosol emissions, but there is no estimate of SOA formation from gaseous precursors. Organic waste products such as sewage slu...

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Autores principales:	R. Ciuraru, J. Kammer, C. Decuq, M. Vojkovic, K. Haider, Y. Carpentier, F. Lafouge, C. Berger, M. Bourdat-Deschamps, I. K. Ortega, F. Levavasseur, S. Houot, B. Loubet, D. Petitprez, C. Focsa
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Environmental sciences GE1-350 Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/f2d7bacc313a4b7ea51b7dcaac056045
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spelling	oai:doaj.org-article:f2d7bacc313a4b7ea51b7dcaac0560452021-12-02T14:23:49ZNew particle formation from agricultural recycling of organic waste products10.1038/s41612-021-00160-32397-3722https://doaj.org/article/f2d7bacc313a4b7ea51b7dcaac0560452021-01-01T00:00:00Zhttps://doi.org/10.1038/s41612-021-00160-3https://doaj.org/toc/2397-3722Abstract Secondary organic aerosols (SOA) are one of the main sources of uncertainty in the current understanding of the Earth’s climate. Agriculture contributes to primary aerosol emissions, but there is no estimate of SOA formation from gaseous precursors. Organic waste products such as sewage sludge are applied to cropland as fertilizers. In this work, we show that sewage sludge is an unaccounted source of nucleation precursors, such as skatole (C9H9N). Skatole emission and nucleation rates up to 1.1 × 106 cm−3 s−1 owing to ozone reactivity were measured in the laboratory. Our results show that SO2 plays a key role in the oxidation of skatole and leads to intensive new particle formation. The products of ozone reactions with skatole and the possible ozonolysis reaction mechanism are discussed. This nucleation mechanism might aid our understanding of the organic waste agricultural recycling contribution to the aerosol balance in the atmosphere. Based on the measured particle emission flux, the surface area of sewage sludge spread in France and the time before sewage sludge incorporation into the soil, a rough estimate of the annual quantity of particles generated by this agricultural activity is in the range of one ton, which represents ~0.03% of the total PM1.0 emissions from the agricultural and forestry sectors in France. As spreading occurs over only a few days (mid-summer), these emissions may locally be of great concern for local and regional air quality during this period of the year.R. CiuraruJ. KammerC. DecuqM. VojkovicK. HaiderY. CarpentierF. LafougeC. BergerM. Bourdat-DeschampsI. K. OrtegaF. LevavasseurS. HouotB. LoubetD. PetitprezC. FocsaNature PortfolioarticleEnvironmental sciencesGE1-350Meteorology. ClimatologyQC851-999ENnpj Climate and Atmospheric Science, Vol 4, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Environmental sciences GE1-350 Meteorology. Climatology QC851-999
spellingShingle	Environmental sciences GE1-350 Meteorology. Climatology QC851-999 R. Ciuraru J. Kammer C. Decuq M. Vojkovic K. Haider Y. Carpentier F. Lafouge C. Berger M. Bourdat-Deschamps I. K. Ortega F. Levavasseur S. Houot B. Loubet D. Petitprez C. Focsa New particle formation from agricultural recycling of organic waste products
description	Abstract Secondary organic aerosols (SOA) are one of the main sources of uncertainty in the current understanding of the Earth’s climate. Agriculture contributes to primary aerosol emissions, but there is no estimate of SOA formation from gaseous precursors. Organic waste products such as sewage sludge are applied to cropland as fertilizers. In this work, we show that sewage sludge is an unaccounted source of nucleation precursors, such as skatole (C9H9N). Skatole emission and nucleation rates up to 1.1 × 106 cm−3 s−1 owing to ozone reactivity were measured in the laboratory. Our results show that SO2 plays a key role in the oxidation of skatole and leads to intensive new particle formation. The products of ozone reactions with skatole and the possible ozonolysis reaction mechanism are discussed. This nucleation mechanism might aid our understanding of the organic waste agricultural recycling contribution to the aerosol balance in the atmosphere. Based on the measured particle emission flux, the surface area of sewage sludge spread in France and the time before sewage sludge incorporation into the soil, a rough estimate of the annual quantity of particles generated by this agricultural activity is in the range of one ton, which represents ~0.03% of the total PM1.0 emissions from the agricultural and forestry sectors in France. As spreading occurs over only a few days (mid-summer), these emissions may locally be of great concern for local and regional air quality during this period of the year.
format	article
author	R. Ciuraru J. Kammer C. Decuq M. Vojkovic K. Haider Y. Carpentier F. Lafouge C. Berger M. Bourdat-Deschamps I. K. Ortega F. Levavasseur S. Houot B. Loubet D. Petitprez C. Focsa
author_facet	R. Ciuraru J. Kammer C. Decuq M. Vojkovic K. Haider Y. Carpentier F. Lafouge C. Berger M. Bourdat-Deschamps I. K. Ortega F. Levavasseur S. Houot B. Loubet D. Petitprez C. Focsa
author_sort	R. Ciuraru
title	New particle formation from agricultural recycling of organic waste products
title_short	New particle formation from agricultural recycling of organic waste products
title_full	New particle formation from agricultural recycling of organic waste products
title_fullStr	New particle formation from agricultural recycling of organic waste products
title_full_unstemmed	New particle formation from agricultural recycling of organic waste products
title_sort	new particle formation from agricultural recycling of organic waste products
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f2d7bacc313a4b7ea51b7dcaac056045
work_keys_str_mv	AT rciuraru newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT jkammer newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT cdecuq newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT mvojkovic newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT khaider newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT ycarpentier newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT flafouge newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT cberger newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT mbourdatdeschamps newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT ikortega newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT flevavasseur newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT shouot newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT bloubet newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT dpetitprez newparticleformationfromagriculturalrecyclingoforganicwasteproducts AT cfocsa newparticleformationfromagriculturalrecyclingoforganicwasteproducts
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New particle formation from agricultural recycling of organic waste products

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