BaselineBaseline physio-chemical characteristics of Sydney estuary water under quiescent conditions☆
Section snippets
Acknowledgements
Tom Savage produced tens of thousands of chemical analyses and ensured data quality and assurance over three decades. Numerous students who took part in field work and on various parts of the study made an enormous contribution and are sincerely thanked for their efforts. Marco Olmos is thanked especially in this regard.
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2022, Environmental ResearchCitation Excerpt :Environmental sampling is often extensive and the use of traditional analytical methods of HPLC or GC to characterize chemical compounds requires both time and money. When a natural disaster occurs, comparisons to pre-disaster baseline are sought to improve understanding of where contaminated environmental media may have traveled and the impact these shifted contaminants may pose for the environment and the public's health (Bera et al., 2019; Birch and Lee, 2018; Camargo et al., 2020; Dellapenna et al., 2020; J.A. Horney et al., 2018; Kiaghadi and Rifai, 2019). The biosensor technology applied in this project demonstrates a rapid, flexible, and cost-effective method to assess for PAHs within both soils and sediments; two matrices often implicated with natural disasters.
Characterizing baseline legacy chemical contamination in urban estuaries for disaster-research through systematic evidence mapping: A case study
2021, ChemosphereCitation Excerpt :With baseline data often of interest for pre-/post-comparisons, datasets containing comprehensive physio-chemical values before a natural disaster or seasonal flood are highly sought after. A recent example that sought to develop such a dataset occurred in Sydney, Australia's estuarine system (Birch and Lee, 2018). As there was already an interest in developing baseline data for Sydney, resources were readily available for the level of monitoring data required.
Predicting chronic algal toxicity from 1- to 48-h pulsed exposures to mine site waters using time-averaged concentrations
2020, Ecotoxicology and Environmental SafetyCitation Excerpt :While regulations usually prevent industries and mines from discharging waters without treatment to remove contaminants, there are situations that necessitate short-term releases of incompletely treated waters that contain contaminant concentrations that exceed guideline values (GVs). In the case of stormwaters, the episodic nature of rainfall events results in organisms within the receiving environment being exposed to a pulse of contaminants mobilised by the event and short-term changes in physico-chemical conditions (e.g. dissolved oxygen, salinity, turbidity) (Burton et al., 2000; Diamond et al., 2006; Gordon et al., 2012; Birch and Lee, 2018). When the concentrations of chemical constituents in a discharge water are known, they may be compared to GVs (ANZG, 2018; CCME, 2018) or criteria (Stephan et al., 1985).
After decades of stressor research in urban estuarine ecosystems the focus is still on single stressors: A systematic literature review and meta-analysis
2019, Science of the Total EnvironmentCitation Excerpt :The mean effect of increased nutrients combined with toxic contaminants (i.e. interaction) was even greater, with a statistically significant negative effect, indicating a possible additive interactive effect of this stressor combination on productivity. While discharges of toxic contaminants into waterways are regulated in many countries around the world through licensing, nutrients and toxic contaminants continue to be are introduced from point and non-point sources during stormwater events (Birch and Lee, 2018). Our results suggest that the combination of nutrients and toxic contaminants will have strong, negative impacts on the productivity of harbours and urban coastal environments (as suggested by Birrer et al., 2018b), rather than having antagonistic effects (e.g. Lawes et al., 2017), dependant on the concentrations.
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Re-submitted to Marine Pollution Bulletin - ‘Baseline’ on the 15th October, 2018.