Abstract
Bisphenol A (BPA) is a manmade chemical that is only found in the environment due to anthropogenic activities. A total of 1150 surface freshwater samples were collected and analysed for BPA at 44 sampling sites in Canada from 2012 to 2018. The resultant concentrations ranged from 3.05 to 1888.51 ng/L. In addition, 64% of the samples were reported to be under the detection limit of the laboratory. In comparison, the Federal Environmental Quality Guideline for the protection of aquatic life is 3500 ng/L. Sampling sites were categorised into four groups based on the dominant activities present upstream in their watersheds: reference sites, mixed use sites, urban sites, and municipal waste water treatment plants (MWWTP) associated sites. Based on the results of this study, detections of BPA in water samples were more frequent in urban and MWWTP-associated sites. Additionally, there does not seem to be a statistically significant temporal (upward or downward) or spatial trend in BPA concentrations in Canadian surface waters from 2012 to 2018 only. Overall, Canadian BPA results are of similar concentrations to that of other countries in Asia and Europe.
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Funding provided by the Chemicals Management Plan. Monique de Jong for creating R scripts, Liang Zhu for creating the map, Jeff Small for answering laboratory-related questions, and Water Quality Monitoring and Surveillance Division staff across the country for conducting field work.
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Lalonde, B., Garron, C. Spatial and Temporal Distribution of BPA in the Canadian Freshwater Environment. Arch Environ Contam Toxicol 78, 568–578 (2020). https://doi.org/10.1007/s00244-020-00721-2
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DOI: https://doi.org/10.1007/s00244-020-00721-2