Greenland Snow Evidence of Large Scale Atmospheric Contamination for Platinum, Palladium, and Rhodium
Since 1976 in the United States, Canada, and Japan, and later in other countries, the exhaust system of gasoline powered cars has been equipped with catalytic converters containing Pt and/or Pd and/or Rh. This has resulted in a very significant decrease in urban air pollution for various chemical sp...
Published in: | Environmental Science & Technology |
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Language: | English |
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2001
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Online Access: | http://hdl.handle.net/10278/35527 https://doi.org/10.1021/es000146y |
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ftuniveneziairis:oai:iris.unive.it:10278/35527 2024-04-14T08:12:23+00:00 Greenland Snow Evidence of Large Scale Atmospheric Contamination for Platinum, Palladium, and Rhodium BARBANTE, Carlo CAPODAGLIO, Gabriele CESCON, Paolo Audrey Veysseyre Christophe Ferrari Katja Van De Velde Christine Morel Giuseppe Scarponi Claude Boutron Barbante, Carlo Audrey, Veysseyre Christophe, Ferrari Katja Van De, Velde Christine, Morel Capodaglio, Gabriele Cescon, Paolo Giuseppe, Scarponi Claude, Boutron 2001 http://hdl.handle.net/10278/35527 https://doi.org/10.1021/es000146y eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000167296400025 volume:35 firstpage:835 lastpage:839 journal:ENVIRONMENTAL SCIENCE & TECHNOLOGY http://hdl.handle.net/10278/35527 doi:10.1021/es000146y info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0035264703 info:eu-repo/semantics/openAccess info:eu-repo/semantics/article 2001 ftuniveneziairis https://doi.org/10.1021/es000146y 2024-03-21T18:02:25Z Since 1976 in the United States, Canada, and Japan, and later in other countries, the exhaust system of gasoline powered cars has been equipped with catalytic converters containing Pt and/or Pd and/or Rh. This has resulted in a very significant decrease in urban air pollution for various chemical species such as NOx, CO, and hydrocarbons. There has however been concern that their ever increasing use might lead to Platinum Group Metals (PGMs) becoming widely dispersed in the environment. From the analysis of Pt, Pd, and Rh in central Greenland recent snow and ancient ice using the ultrasensitive inductively coupled plasma sector field mass spectrometry technique, we show here that the concentrations of these metals in snow dated from the mid 1990s are indeed 40−120 times higher than in ice dated from 7000 years ago. The fact that such an increase is observed far away from populated areas at a high altitude location indicates there is now a large scale contamination of the troposphere of the Northern Hemisphere for PGMs. Pt/Rh mass ratio in the most recent snow samples is close to the same ratio documented for catalytic converter exhausts in a recent study, which suggests that a large fraction of the recent increase for Pt and Rh might originate from automobile catalytic converters. Article in Journal/Newspaper Greenland Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) Canada Greenland Environmental Science & Technology 35 5 835 839 |
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Open Polar |
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Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) |
op_collection_id |
ftuniveneziairis |
language |
English |
description |
Since 1976 in the United States, Canada, and Japan, and later in other countries, the exhaust system of gasoline powered cars has been equipped with catalytic converters containing Pt and/or Pd and/or Rh. This has resulted in a very significant decrease in urban air pollution for various chemical species such as NOx, CO, and hydrocarbons. There has however been concern that their ever increasing use might lead to Platinum Group Metals (PGMs) becoming widely dispersed in the environment. From the analysis of Pt, Pd, and Rh in central Greenland recent snow and ancient ice using the ultrasensitive inductively coupled plasma sector field mass spectrometry technique, we show here that the concentrations of these metals in snow dated from the mid 1990s are indeed 40−120 times higher than in ice dated from 7000 years ago. The fact that such an increase is observed far away from populated areas at a high altitude location indicates there is now a large scale contamination of the troposphere of the Northern Hemisphere for PGMs. Pt/Rh mass ratio in the most recent snow samples is close to the same ratio documented for catalytic converter exhausts in a recent study, which suggests that a large fraction of the recent increase for Pt and Rh might originate from automobile catalytic converters. |
author2 |
Barbante, Carlo Audrey, Veysseyre Christophe, Ferrari Katja Van De, Velde Christine, Morel Capodaglio, Gabriele Cescon, Paolo Giuseppe, Scarponi Claude, Boutron |
format |
Article in Journal/Newspaper |
author |
BARBANTE, Carlo CAPODAGLIO, Gabriele CESCON, Paolo Audrey Veysseyre Christophe Ferrari Katja Van De Velde Christine Morel Giuseppe Scarponi Claude Boutron |
spellingShingle |
BARBANTE, Carlo CAPODAGLIO, Gabriele CESCON, Paolo Audrey Veysseyre Christophe Ferrari Katja Van De Velde Christine Morel Giuseppe Scarponi Claude Boutron Greenland Snow Evidence of Large Scale Atmospheric Contamination for Platinum, Palladium, and Rhodium |
author_facet |
BARBANTE, Carlo CAPODAGLIO, Gabriele CESCON, Paolo Audrey Veysseyre Christophe Ferrari Katja Van De Velde Christine Morel Giuseppe Scarponi Claude Boutron |
author_sort |
BARBANTE, Carlo |
title |
Greenland Snow Evidence of Large Scale Atmospheric Contamination for Platinum, Palladium, and Rhodium |
title_short |
Greenland Snow Evidence of Large Scale Atmospheric Contamination for Platinum, Palladium, and Rhodium |
title_full |
Greenland Snow Evidence of Large Scale Atmospheric Contamination for Platinum, Palladium, and Rhodium |
title_fullStr |
Greenland Snow Evidence of Large Scale Atmospheric Contamination for Platinum, Palladium, and Rhodium |
title_full_unstemmed |
Greenland Snow Evidence of Large Scale Atmospheric Contamination for Platinum, Palladium, and Rhodium |
title_sort |
greenland snow evidence of large scale atmospheric contamination for platinum, palladium, and rhodium |
publishDate |
2001 |
url |
http://hdl.handle.net/10278/35527 https://doi.org/10.1021/es000146y |
geographic |
Canada Greenland |
geographic_facet |
Canada Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000167296400025 volume:35 firstpage:835 lastpage:839 journal:ENVIRONMENTAL SCIENCE & TECHNOLOGY http://hdl.handle.net/10278/35527 doi:10.1021/es000146y info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0035264703 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1021/es000146y |
container_title |
Environmental Science & Technology |
container_volume |
35 |
container_issue |
5 |
container_start_page |
835 |
op_container_end_page |
839 |
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1796310191894953984 |