Determination of deployment specific chemical uptake rates for SDB-RPD Empore disk using a passive flow monitor (PFM)

Overview of the Chemcatcher® for the passive sampling of various pollutants in aquatic environments Part A: Principles, calibration, preparation and analysis of the sampler

“…Aqueous concentrations could decrease as a result of sampler uptake but due to the large water volume (e.g. 1400 L [32] and 1500 L [20]), analyte concentrations remained within 70-80% of the initial spiked level [20]. 2.…”

“…These considerations hamper a direct comparison of published sampling rates. For instance, R s values obtained for the pesticide atrazine, and the only SDB-RPS-PES configuration, range between 0.013 70.003 L day À 1 (stagnant conditions at 16.2°C [32]) and 0.170 L day À 1 (0.14 m s À 1 flow velocity at 22°C [22]). A similar R s value of 0.12470.021 L day À 1 was also determined by O'Brien et al [32] at 19.3°C and a 0.161 m s À 1 flow velocity.…”

“…For instance, R s values obtained for the pesticide atrazine, and the only SDB-RPS-PES configuration, range between 0.013 70.003 L day À 1 (stagnant conditions at 16.2°C [32]) and 0.170 L day À 1 (0.14 m s À 1 flow velocity at 22°C [22]). A similar R s value of 0.12470.021 L day À 1 was also determined by O'Brien et al [32] at 19.3°C and a 0.161 m s À 1 flow velocity. Only one study is, at present time, available for a direct comparison of R s values obtained by means of different exposure systems (carrousel tank and channel system) [27].…”

Combining Passive Sampling with a GC-MS-Database Screening Tool to Assess Trace Organic Contamination of Rivers: a Pilot Study in Melbourne, Australia

“…The monitoring found three insecticides (endosulfan, chlorpyrifos and parathion methyl) in the passive sampler solvents. Elsewhere in Australia, a number of relatively recent studies have detected residues of atrazine, diuron, hexazinone and simazine in rivers and estuaries on the eastern seaboard of Australia using the CC passive sampling system (Escher et al 2006;Muller et al 2008;Shaw et al 2009aShaw et al , b, 2010Stephens et al 2009;O'Brien et al 2011), andMueller et al (2011) tracked POPs in the Brisbane River, but prior to this study, there had been no significant studies investigating TrOCs in surface waters in Victoria using the CC system.…”

Spatial and Temporal Variability in Pesticide Exposure Downstream of a Heavily Irrigated Cropping Area: Application of Different Monitoring Techniques

“…The passive samplers 151 were extracted for the quantification of pesticide concentration at the University of 152 Queensland. A full description of the passive sampling extraction and analysis methods 153 employed in this study has been described previously 28,30 . Analysis of the extracted samples 154 employed liquid and gas chromatography-mass spectrometry (LC-MS/MS and GCMS 20 ).…”