PMID- 27471982 OWN - NLM STAT- MEDLINE DCOM- 20180321 LR - 20180321 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 571 DP - 2016 Nov 15 TI - Assessing levels of POPs in air over the South Atlantic Ocean off the coast of South America. PG - 172-7 LID - S0048-9697(16)31600-X [pii] LID - 10.1016/j.scitotenv.2016.07.149 [doi] AB - 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 (2.71-87.1pg/m(3) and 9.56-130pg/m(3), respectively) while PBDEs levels were significantly lower (0.69-2.58pg/m(3)). Dichlorodiphenyltrichloroethanes (DDTs), endosulfans, chlordanes, hexachlorocyclohexanes (HCHs) and heptachlors were between 0.20 and 17.8pg/m(3), while drines and hexachlorobenzene (HCB) were at lower levels (0.28-3.71pg/m(3)). 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 400km. This has implications for the loading of POPs and delivery to the marine environment in the near coastal zone. CI - Copyright (c) 2016 Elsevier B.V. All rights reserved. FAU - Pegoraro, Cesar N AU - Pegoraro CN AD - Departamento de Quimica, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3350, B7602AYL Mar del Plata, Argentina; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), CCT Mar Del Plata, Argentina. FAU - Harner, Tom AU - Harner T AD - Air Quality Processes Research Section, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON M3H 5T4, Canada. FAU - Su, Ky AU - Su K AD - Air Quality Processes Research Section, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON M3H 5T4, Canada. FAU - Chiappero, Malisa S AU - Chiappero MS AD - Departamento de Quimica, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3350, B7602AYL Mar del Plata, Argentina; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), CCT Mar Del Plata, Argentina. Electronic address: mchiappero@mdp.edu.ar. LA - eng PT - Journal Article DEP - 20160726 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Air Pollutants) RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Pesticides) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Air Pollutants/*analysis MH - Argentina MH - Atlantic Ocean MH - Brazil MH - Environmental Monitoring MH - Halogenated Diphenyl Ethers/*analysis MH - Hydrocarbons, Chlorinated/analysis MH - Pesticides/*analysis MH - Polychlorinated Biphenyls/*analysis MH - Uruguay OTO - NOTNLM OT - Active air sampling OT - Persistent organic pollutants OT - South Atlantic Ocean EDAT- 2016/07/30 06:00 MHDA- 2018/03/22 06:00 CRDT- 2016/07/30 06:00 PHST- 2016/05/31 00:00 [received] PHST- 2016/07/20 00:00 [revised] PHST- 2016/07/21 00:00 [accepted] PHST- 2016/07/30 06:00 [entrez] PHST- 2016/07/30 06:00 [pubmed] PHST- 2018/03/22 06:00 [medline] AID - S0048-9697(16)31600-X [pii] AID - 10.1016/j.scitotenv.2016.07.149 [doi] PST - ppublish SO - Sci Total Environ. 2016 Nov 15;571:172-7. doi: 10.1016/j.scitotenv.2016.07.149. Epub 2016 Jul 26.