Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America
The occurrence of persistent organic pollutants (POPs) in the atmosphere of the near-coast South Atlantic Ocean was studied. Air samples were collected using a high-volume air sampler (filter and polyurethane foam) on board the Argentinean research cruise R/V Puerto Deseado (CONICET). Samples were a...
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ftconicet:oai:ri.conicet.gov.ar:11336/91732 2024-05-19T07:48:30+00:00 Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America Pegoraro, César Nicolás Harner, Tom Su, Ky Chiappero, Malisa Susana application/pdf http://hdl.handle.net/11336/91732 eng eng Elsevier Science info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S004896971631600X info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2016.07.149 http://hdl.handle.net/11336/91732 Pegoraro, César Nicolás; Harner, Tom; Su, Ky; Chiappero, Malisa Susana; Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America; Elsevier Science; Science of the Total Environment; 571; 11-2016; 172-177 0048-9697 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ACTIVE AIR SAMPLING PERSISTENT ORGANIC POLLUTANTS SOUTH ATLANTIC OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1016/j.scitotenv.2016.07.149 2024-05-02T23:39:33Z The occurrence of persistent organic pollutants (POPs) in the atmosphere of the near-coast South Atlantic Ocean was studied. Air samples were collected using a high-volume air sampler (filter and polyurethane foam) on board the Argentinean research cruise R/V Puerto Deseado (CONICET). Samples were analyzed for 50 polychlorinated biphenyl (PCBs), 22 organochlorine pesticides (OCPs) and 14 polybrominated diphenyl ethers (PBDEs). These POPs classes showed a trend of decreasing levels from near-shore to open ocean sites. OCPs and PCBs were in the same order of magnitude (2.71–87.1 pg/m3 and 9.56–130 pg/m3, respectively) while PBDEs levels were significantly lower (0.69–2.58 pg/m3). Dichlorodiphenyltrichloroethanes (DDTs), endosulfans, chlordanes, hexachlorocyclohexanes (HCHs) and heptachlors were between 0.20 and 17.8 pg/m3, while drines and hexachlorobenzene (HCB) were at lower levels (0.28–3.71 pg/m3). The most frequently detected PCBs were congeners 32, 28, 44, 52, 95, representing > 50% of the total. The PBDEs congener pattern was dominated by congener 209 (70%), followed by 47 and 99 (16% and 7%, respectively). Air parcel back trajectories for the study period provided few insights as trajectories mainly stemmed from the open ocean with limited inputs from continental sources. These results indicate that the concentration of POPs (namely PCBs, OCPs, and PBDEs) in air remain elevated in the near-shore environment and then drop-off substantially beyond a distance of about 400 km. This has implications for the loading of POPs and delivery to the marine environment in the near coastal zone. Fil: Pegoraro, César Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina Fil: Harner, Tom. Environment and Climate Change Canada; Canadá Fil: Su, Ky. Environment and Climate Change Canada; Canadá Fil: Chiappero, Malisa Susana. Consejo Nacional de Investigaciones Científicas y ... Article in Journal/Newspaper South Atlantic Ocean CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Science of The Total Environment 571 172 177 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ACTIVE AIR SAMPLING PERSISTENT ORGANIC POLLUTANTS SOUTH ATLANTIC OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
ACTIVE AIR SAMPLING PERSISTENT ORGANIC POLLUTANTS SOUTH ATLANTIC OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Pegoraro, César Nicolás Harner, Tom Su, Ky Chiappero, Malisa Susana Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America |
topic_facet |
ACTIVE AIR SAMPLING PERSISTENT ORGANIC POLLUTANTS SOUTH ATLANTIC OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The occurrence of persistent organic pollutants (POPs) in the atmosphere of the near-coast South Atlantic Ocean was studied. Air samples were collected using a high-volume air sampler (filter and polyurethane foam) on board the Argentinean research cruise R/V Puerto Deseado (CONICET). Samples were analyzed for 50 polychlorinated biphenyl (PCBs), 22 organochlorine pesticides (OCPs) and 14 polybrominated diphenyl ethers (PBDEs). These POPs classes showed a trend of decreasing levels from near-shore to open ocean sites. OCPs and PCBs were in the same order of magnitude (2.71–87.1 pg/m3 and 9.56–130 pg/m3, respectively) while PBDEs levels were significantly lower (0.69–2.58 pg/m3). Dichlorodiphenyltrichloroethanes (DDTs), endosulfans, chlordanes, hexachlorocyclohexanes (HCHs) and heptachlors were between 0.20 and 17.8 pg/m3, while drines and hexachlorobenzene (HCB) were at lower levels (0.28–3.71 pg/m3). The most frequently detected PCBs were congeners 32, 28, 44, 52, 95, representing > 50% of the total. The PBDEs congener pattern was dominated by congener 209 (70%), followed by 47 and 99 (16% and 7%, respectively). Air parcel back trajectories for the study period provided few insights as trajectories mainly stemmed from the open ocean with limited inputs from continental sources. These results indicate that the concentration of POPs (namely PCBs, OCPs, and PBDEs) in air remain elevated in the near-shore environment and then drop-off substantially beyond a distance of about 400 km. This has implications for the loading of POPs and delivery to the marine environment in the near coastal zone. Fil: Pegoraro, César Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina Fil: Harner, Tom. Environment and Climate Change Canada; Canadá Fil: Su, Ky. Environment and Climate Change Canada; Canadá Fil: Chiappero, Malisa Susana. Consejo Nacional de Investigaciones Científicas y ... |
format |
Article in Journal/Newspaper |
author |
Pegoraro, César Nicolás Harner, Tom Su, Ky Chiappero, Malisa Susana |
author_facet |
Pegoraro, César Nicolás Harner, Tom Su, Ky Chiappero, Malisa Susana |
author_sort |
Pegoraro, César Nicolás |
title |
Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America |
title_short |
Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America |
title_full |
Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America |
title_fullStr |
Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America |
title_full_unstemmed |
Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America |
title_sort |
assessing levels of pops in air over the south atlantic ocean off the coast of south america |
publisher |
Elsevier Science |
url |
http://hdl.handle.net/11336/91732 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S004896971631600X info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2016.07.149 http://hdl.handle.net/11336/91732 Pegoraro, César Nicolás; Harner, Tom; Su, Ky; Chiappero, Malisa Susana; Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America; Elsevier Science; Science of the Total Environment; 571; 11-2016; 172-177 0048-9697 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.scitotenv.2016.07.149 |
container_title |
Science of The Total Environment |
container_volume |
571 |
container_start_page |
172 |
op_container_end_page |
177 |
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1799466776831983616 |