Title: | Air monitoring of new and legacy POPs in the Group of Latin America and Caribbean (GRULAC) region |
Author(s): | Rauert C; Harner T; Schuster JK; Eng A; Fillmann G; Castillo LE; Fentanes O; Ibarra MV; Miglioranza KSB; Rivadeneira IM; Pozo K; Aristizabal Zuluaga BH; |
Address: | "Air Quality Processes Research Section, Environment and Climate Change Canada, Toronto, ON, M3H 5T4, Canada. Air Quality Processes Research Section, Environment and Climate Change Canada, Toronto, ON, M3H 5T4, Canada. Electronic address: tom.harner@canada.ca. Universidade Federal do Rio Grande, Instituto de Oceanografia, Rio Grande, RS, 96203-900, Brazil; Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, Pavillion A29, 62500 Brno, Czech Republic. Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional, Heredia, Costa Rica. CGCSA/INECC, Ciudad de Mexico, Mexico. Instituto Tecnologico Superior de Cajeme, Cajeme, Sonora, Mexico. Universidad Nacional Mar del Plata, IIMyC-CONICET, Mar del Plata, Argentina. Laboratorio de Fisica de La Atmosfera, Instituto de Investigaciones Fisicas, UMSA, La Paz, Bolivia. Facultad de Ingenieria y Tecnologia, Universidad San Sebastian, Lientur 1457, Concepcion, 4080871, Chile. Universidad Nacional de Colombia, Manizales, Colombia" |
DOI: | 10.1016/j.envpol.2018.09.048 |
ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
Abstract: | "A special initiative in the Global Atmospheric Passive Sampling (GAPS) Network was implemented to provide information on new and emerging persistent organic pollutants (POPs) in the Group of Latin America and Caribbean (GRULAC) region. Regional-scale atmospheric concentrations of the new and emerging POPs hexachlorobutadiene (HCBD), pentachloroanisole (PCA) and dicofol indicators (breakdown products) are reported for the first time. HCBD was detected in similar concentrations at all location types (<20-120?ª+pg/m(3)). PCA had elevated concentrations at the urban site Concepcion (Chile) of 49-222?ª+pg/m(3), with concentrations ranging <1-8.5?ª+pg/m(3) at the other sites in this study. Dicofol indicators were detected at the agricultural site of Sonora (Mexico) at concentrations ranging 30-117?ª+pg/m(3). Legacy POPs, including a range of organochlorine (OC) pesticides and polychlorinated biphenyls (PCBs), were also monitored to compare regional atmospheric concentrations over a decade of monitoring under the GAPS Network. gamma-hexachlorocyclohexane (HCH) and the endosulfans significantly decreased (p?ª+ª+0.05) from 2005 to 2015, suggesting regional levels are decreasing. However, there were no significant changes for the other legacy POPs monitored, likely a reflection of the persistency and slow decline of environmental levels of these POPs. For the more volatile OCs, atmospheric concentrations derived from polyurethane foam (PUF) (acting as an equilibrium sampler) and sorbent impregnated PUF (SIP) (acting as a linear phase sampler), were compared. The complimentary methods show a good agreement of within a factor of 2-3, and areas for future studies to improve this agreement are further discussed" |
Keywords: | "Air Pollutants/*analysis Caribbean Region Chile Endosulfan *Environmental Monitoring Environmental Pollutants/*analysis Hexachlorocyclohexane Hydrocarbons, Chlorinated/analysis Latin America Mexico Pesticides/analysis Polychlorinated Biphenyls/analysis Po;" |
Notes: | "MedlineRauert, Cassandra Harner, Tom Schuster, Jasmin K Eng, Anita Fillmann, Gilberto Castillo, Luisa Eugenia Fentanes, Oscar Ibarra, Martin Villa Miglioranza, Karina S B Rivadeneira, Isabel Moreno Pozo, Karla Aristizabal Zuluaga, Beatriz Helena eng England 2018/10/01 Environ Pollut. 2018 Dec; 243(Pt B):1252-1262. doi: 10.1016/j.envpol.2018.09.048. Epub 2018 Sep 15" |