PMID- 27258617 OWN - NLM STAT- MEDLINE DCOM- 20170505 LR - 20171205 IS - 1879-2448 (Electronic) IS - 0043-1354 (Linking) VI - 101 DP - 2016 Sep 15 TI - Greenhouse gas emissions from waste stabilisation ponds in Western Australia and Quebec (Canada). PG - 64-74 LID - S0043-1354(16)30386-4 [pii] LID - 10.1016/j.watres.2016.05.060 [doi] AB - Waste stabilisation ponds (WSPs) are highly enriched environments that may emit large quantities of greenhouse gases (GHG), including CO2, CH4 and N2O. However, few studies provide detailed reports on these emissions. In the present study, we investigated GHG emissions from WSPs in Western Australia and Quebec, Canada, and compared emissions to WSPs from other climatic regions and to other types of aquatic ecosystems. Surface water GHG concentrations were related to phytoplankton biomass and nutrients. The CO2 was either emitted or absorbed by WSPs, largely as a function of phytoplankton dynamics and strong stratification in these shallow systems, whereas efflux of CH4 and N2O to the atmosphere was always observed albeit with highly variable emission rates, dependent on treatment phase and time of the day. The total global warming potential index (GWP index, calculated as CO2 equivalent) of emitted GHG from WSPs in Western Australia averaged 12.8 mmol m(-2) d(-1) (median), with CO2, CH4 and N2O respectively contributing 0%, 96.7% and 3.3% of the total emissions, while in Quebec WSPs this index was 194 mmol m(-2) d(-1), with a relative contribution of 93.8, 3.0 and 3.2% respectively. The CO2 fluxes from WSPs were of the same order of magnitude as those reported in hydroelectric reservoirs and constructed wetlands in tropical climates, whereas CH4 fluxes were considerably higher compared to other aquatic ecosystems. N2O fluxes were in the same range of values reported for WSPs in subtropical climate. CI - Copyright (c) 2016 Elsevier Ltd. All rights reserved. FAU - Glaz, Patricia AU - Glaz P AD - Institut national de la recherche scientifique, Centre Eau Terre Environnement, 490 rue de la Couronne, Quebec, QC G1K 9A9, Canada; School of Civil, Environmental and Mining Engineering, The University of Western Australia, 35 Stirling Highway M015, Crawley, WA 6009, Australia. Electronic address: glaz.patricia@gmail.com. FAU - Bartosiewicz, Maciej AU - Bartosiewicz M AD - Institut national de la recherche scientifique, Centre Eau Terre Environnement, 490 rue de la Couronne, Quebec, QC G1K 9A9, Canada; Groupe de Recherche Interuniversitaire en Limnologie et en environnement aquatique (GRIL), Universite de Montreal, Montreal, QC H3C 3J7, Canada. FAU - Laurion, Isabelle AU - Laurion I AD - Institut national de la recherche scientifique, Centre Eau Terre Environnement, 490 rue de la Couronne, Quebec, QC G1K 9A9, Canada; Groupe de Recherche Interuniversitaire en Limnologie et en environnement aquatique (GRIL), Universite de Montreal, Montreal, QC H3C 3J7, Canada. FAU - Reichwaldt, Elke S AU - Reichwaldt ES AD - School of Civil, Environmental and Mining Engineering, The University of Western Australia, 35 Stirling Highway M015, Crawley, WA 6009, Australia. FAU - Maranger, Roxane AU - Maranger R AD - Groupe de Recherche Interuniversitaire en Limnologie et en environnement aquatique (GRIL), Universite de Montreal, Montreal, QC H3C 3J7, Canada; Departement des Sciences Biologiques, Universite de Montreal, Montreal, QC H2V 2S9, Canada. FAU - Ghadouani, Anas AU - Ghadouani A AD - School of Civil, Environmental and Mining Engineering, The University of Western Australia, 35 Stirling Highway M015, Crawley, WA 6009, Australia. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160521 PL - England TA - Water Res JT - Water research JID - 0105072 RN - OP0UW79H66 (Methane) SB - IM EIN - Water Res. 2017 Oct 15;123:853. PMID: 28826793 MH - *Greenhouse Effect MH - Methane MH - *Ponds MH - Quebec MH - Western Australia OTO - NOTNLM OT - CH(4) OT - CO(2) OT - Diffusive flux OT - Global warming potential OT - Greenhouse gases OT - N(2)O OT - Spatiotemporal variability OT - Waste stabilisation ponds OT - Wastewater treatment EDAT- 2016/06/04 06:00 MHDA- 2017/05/06 06:00 CRDT- 2016/06/04 06:00 PHST- 2016/01/15 00:00 [received] PHST- 2016/04/27 00:00 [revised] PHST- 2016/05/19 00:00 [accepted] PHST- 2016/06/04 06:00 [entrez] PHST- 2016/06/04 06:00 [pubmed] PHST- 2017/05/06 06:00 [medline] AID - S0043-1354(16)30386-4 [pii] AID - 10.1016/j.watres.2016.05.060 [doi] PST - ppublish SO - Water Res. 2016 Sep 15;101:64-74. doi: 10.1016/j.watres.2016.05.060. Epub 2016 May 21.