101
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McAlary T, Groenevelt H, Seethapathy S, Sacco P, Crump D, Tuday M, Schumacher B, Hayes H, Johnson P, Parker L, Górecki T. Quantitative passive soil vapor sampling for VOCs--Part 4: Flow-through cell. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2014; 16:1103-1111. [PMID: 24686477 DOI: 10.1039/c4em00098f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This paper presents a controlled experiment comparing several quantitative passive samplers for monitoring concentrations of volatile organic compound (VOC) vapors in soil gas using a flow-through cell. This application is simpler than conventional active sampling using adsorptive tubes because the flow rate does not need to be precisely measured and controlled, which is advantageous because the permeability of subsurface materials affects the flow rate and the permeability of geologic materials is highly variable. Using passive samplers in a flow-through cell, the flow rate may not need to be known exactly, as long as it is sufficient to purge the cell in a reasonable time and minimize any negative bias attributable to the starvation effect. An experiment was performed in a 500 mL flow-through cell using a two-factor, one-half fraction fractional factorial test design with flow rates of 80, 670 and 930 mL min(-1) and sample durations of 10, 15 and 20 minutes for each of five different passive samplers (passive Automatic Thermal Desorption Tube, Radiello®, SKC Ultra, Waterloo Membrane Sampler™ and 3M™ OVM 3500). A Summa canister was collected coincident with each passive sampler and analyzed by EPA Method TO-15 to provide a baseline for comparison of the passive sampler concentrations. The passive sampler concentrations were within a factor of 2 of the Summa canister concentrations in 32 of 35 cases. Passive samples collected at the low flow rate and short duration showed low concentrations, which is likely attributable to insufficient purging of the cell after sampler placement.
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Affiliation(s)
- Todd McAlary
- Geosyntec Consultants, Inc., 130 Research Lane, #2, Guelph, Ontario N1G 5G3, Canada.
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102
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McAlary T, Wang X, Unger A, Groenevelt H, Górecki T. Quantitative passive soil vapor sampling for VOCs--part 1: theory. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2014; 16:482-490. [PMID: 24469235 DOI: 10.1039/c3em00652b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Volatile organic compounds are the primary chemicals of concern at many contaminated sites and soil vapor sampling and analysis is a valuable tool for assessing the nature and extent of contamination. Soil gas samples are typically collected by applying vacuum to a probe in order to collect a whole-gas sample, or by drawing gas through a tube filled with an adsorbent (active sampling). There are challenges associated with flow and vacuum levels in low permeability materials, and leak prevention and detection during active sample collection can be cumbersome. Passive sampling has been available as an alternative to conventional gas sample collection for decades, but quantitative relationships between the mass of chemicals sorbed, the soil vapor concentrations, and the sampling time have not been established. This paper presents transient and steady-state mathematical models of radial vapor diffusion to a drilled hole and considerations for passive sampler sensitivity and practical sampling durations. The results indicate that uptake rates in the range of 0.1 to 1 mL min(-1) will minimize the starvation effect for most soil moisture conditions and provide adequate sensitivity for human health risk assessment with a practical sampling duration. This new knowledge provides a basis for improved passive soil vapour sampler design.
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Affiliation(s)
- Todd McAlary
- Geosyntec Consultants, Inc., 130 Research Lane, #2, Guelph, Ontario N1G 5G3, Canada.
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103
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Addeck A, Croes K, Van Langenhove K, Denison MS, Elhamalawy A, Elskens M, Baeyens W. Time-integrated monitoring of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in urban and industrial wastewaters using a ceramic toximeter and the CALUX bioassay. CHEMOSPHERE 2014; 94:27-35. [PMID: 24075528 PMCID: PMC4308619 DOI: 10.1016/j.chemosphere.2013.08.075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 08/14/2013] [Accepted: 08/26/2013] [Indexed: 06/02/2023]
Abstract
The ceramic toximeter as a passive sampler in combination with the CALUX bioassay was utilized as a time-integrated pollution-assessment technique for dioxin-like PCDD/Fs in wastewaters. Toximeters filled with XCARB and enclosed in stainless steel cages were submerged in wastewater of Belbeis drainage-canal and EMAK paper-mill, located in Egypt, for 28 days. Two samplers were removed every week from each site. Extracts from toximeters, from bottom-sediments, and from paper-mill sludge were analyzed by the CALUX. Results showed a regular increase in the amounts of PCDD/Fs trapped by the toximeters as sampling time increased. Time-weighted average concentrations (TWA) of PCDD/Fs in the wastewaters of the drainage-canal and paper-mill were 231 (214-281) and 26 (24.1-32.6) pg-BEQL(-1), respectively. Compared to literature data, this means a high pollution level for the drainage-canal water, while the pollution level in the paper-mill wastewater is similar to that reported for other paper mills. The PCDD/Fs levels in the drainage-canal bottom-sediments and in the paper-mill sludge were 8.3 and 14.6 pg-BEQg(-1) dry-weight, at the lower end of internationally reported values in similar compartments. The sampling rate of the tested toximeters for dissolved PCDD/Fs was about 3.6 mL d(-1). Sediment/water partitioning coefficient logKd of PCDD/Fs in the drainage-canal and the paper-mill was 1.42 and 2.70 respectively. The organic-carbon normalized partition coefficient logKoc was 4.17 and 3.19 respectively, and is lower than the reported values for other sites.
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Affiliation(s)
- Amr Addeck
- Department of Analytical and Environmental Chemistry, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, Belgium.
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104
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Chen S, Han Z, Zhang D, Zhan J. Theoretical study of the inclusion complexation of TCDD with cucurbit[n]urils. RSC Adv 2014. [DOI: 10.1039/c4ra06011c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cucurbit[n]urils as a host are indicated to be capable of including TCDD guest and the formed inclusion complexes can be detected using IR and Raman techniques.
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Affiliation(s)
- Shunwei Chen
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- Institute of Theoretical Chemistry
- Shandong University
- Jinan, P. R. China
| | - Zhe Han
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- Institute of Theoretical Chemistry
- Shandong University
- Jinan, P. R. China
| | - Dongju Zhang
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- Institute of Theoretical Chemistry
- Shandong University
- Jinan, P. R. China
| | - Jinhua Zhan
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- Institute of Theoretical Chemistry
- Shandong University
- Jinan, P. R. China
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105
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Bustamante J, Navarro P, Arana G, de Diego A, Madariaga JM. Ultrasound assisted dialysis of semi-permeable membrane devices for the simultaneous analysis of a wide number of persistent organic pollutants. Talanta 2013; 114:32-7. [DOI: 10.1016/j.talanta.2013.03.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 03/21/2013] [Accepted: 03/28/2013] [Indexed: 11/28/2022]
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106
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Ahkola H, Herve S, Knuutinen J. Overview of passive Chemcatcher sampling with SPE pretreatment suitable for the analysis of NPEOs and NPs. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:1207-1218. [PMID: 22983602 DOI: 10.1007/s11356-012-1153-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 08/27/2012] [Indexed: 06/01/2023]
Abstract
The European Union Water Framework Directive (WFD; 2000/60/EC) is an important piece of environmental legislation that protects rivers, lakes, coastal waters and groundwaters (EC 2000). The implementation of the WFD requires the establishment and use of novel and low-cost monitoring programmes, and several methods, e.g. passive sampling, have been developed to make the sampling process more representative compared to spot sampling. This review considers passive sampling methods focusing mainly on a passive sampler named Chemcatcher®, which has been used for monitoring several harmful compounds in aquatic environments. Also, the sample treatment and analysis of nonylphenol ethoxylates (NPEOs) and nonylphenol (NPs) from water using solid phase extraction (SPE) is briefly summarized. The procedure of Chemcatcher passive sampling is quite similar to that of the SPE extraction since it concentrates the studied compounds from water as well. After sampling, the accumulated substances are extracted from the receiving phase of the sampler. The concentrations of NPEOs and NPs are currently monitored by taking conventional spot samples; SPE can be successfully used as a pretreatment procedure. Chemcatcher® passive sampling technique is a simple and useful monitoring tool and can be applied to new chemicals, such as NPEOs and NPs in aquatic environments.
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Affiliation(s)
- Heidi Ahkola
- Finnish Environment Institute (SYKE), P.O. Box 35, Jyväskylä, 40014, Finland.
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107
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Matzke MM, Allan SE, Anderson KA, Waters KM. An approach for calculating a confidence interval from a single aquatic sample for monitoring hydrophobic organic contaminants. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2012; 31:2888-92. [PMID: 22997050 PMCID: PMC3581149 DOI: 10.1002/etc.2014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 03/09/2012] [Accepted: 08/13/2012] [Indexed: 05/06/2023]
Abstract
The use of passive sampling devices (PSDs) for monitoring hydrophobic organic contaminants in aquatic environments can entail logistical constraints that often limit a comprehensive statistical sampling plan, thus resulting in a restricted number of samples. The present study demonstrates an approach for using the results of a pilot study designed to estimate sampling variability, which in turn can be used as variance estimates for confidence intervals for future n = 1 PSD samples of the same aquatic system. Sets of three to five PSDs were deployed in the Portland Harbor Superfund site for three sampling periods over the course of two years. The PSD filters were extracted and, as a composite sample, analyzed for 33 polycyclic aromatic hydrocarbon compounds. The between-sample and within-sample variances were calculated to characterize sources of variability in the environment and sampling methodology. A method for calculating a statistically reliable and defensible confidence interval for the mean of a single aquatic passive sampler observation (i.e., n = 1) using an estimate of sample variance derived from a pilot study is presented. Coverage probabilities are explored over a range of variance values using a Monte Carlo simulation.
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Affiliation(s)
- Melissa M Matzke
- Computational Biology and Bioinformatics, Pacific Northwest National Laboratory, Richland, WA, USA.
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108
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Harman C, Allan IJ, Vermeirssen ELM. Calibration and use of the polar organic chemical integrative sampler--a critical review. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2012; 31:2724-38. [PMID: 23012256 DOI: 10.1002/etc.2011] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 05/15/2012] [Accepted: 08/08/2012] [Indexed: 05/20/2023]
Abstract
The implementation of strict environmental quality standards for polar organic priority pollutants poses a challenge for monitoring programs. The polar organic chemical integrative sampler (POCIS) may help to address the challenge of measuring low and fluctuating trace concentrations of such organic contaminants, offering significant advantages over traditional sampling. In the present review, the authors evaluate POCIS calibration methods and factors affecting sampling rates together with reported environmental applications. Over 300 compounds have been shown to accumulate in POCIS, including pesticides, pharmaceuticals, hormones, and industrial chemicals. Polar organic chemical integrative sampler extracts have been used for both chemical and biological analyses. Several different calibration methods have been described, which makes it difficult to directly compare sampling rates. In addition, despite the fact that some attempts to correlate sampling rates with the properties of target compounds such as log K(OW) have been met with varying success, an overall model that can predict uptake is lacking. Furthermore, temperature, water flow rates, salinity, pH, and fouling have all been shown to affect uptake; however, there is currently no robust method available for adjusting for these differences. Overall, POCIS has been applied to a wide range of sampling environments and scenarios and has been proven to be a useful screening tool. However, based on the existing literature, a more mechanistic approach is required to increase understanding and thus improve the quantitative nature of the measurements.
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109
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Seethapathy S, Górecki T. Applications of polydimethylsiloxane in analytical chemistry: A review. Anal Chim Acta 2012; 750:48-62. [PMID: 23062428 DOI: 10.1016/j.aca.2012.05.004] [Citation(s) in RCA: 127] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 04/26/2012] [Accepted: 05/03/2012] [Indexed: 11/19/2022]
Affiliation(s)
- Suresh Seethapathy
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
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110
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Morin N, Miège C, Coquery M, Randon J. Chemical calibration, performance, validation and applications of the polar organic chemical integrative sampler (POCIS) in aquatic environments. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2012.01.007] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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111
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von Bobrutzki K, Ammon C, Berg W, Einert P, Fiedler M, Müller HJ, Scherer D, Strohbach B. Ammonia emissions from a broiler farm: spatial variability of airborne concentrations in the vicinity and impact on adjacent woodland. ENVIRONMENTAL MONITORING AND ASSESSMENT 2012; 184:3775-3787. [PMID: 21785840 DOI: 10.1007/s10661-011-2223-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Accepted: 06/30/2011] [Indexed: 05/31/2023]
Abstract
Agricultural NH(3) emissions affect air quality and influence the nitrogen cycle. In the subject study, NH(3) emissions from a broiler farm and the resulting atmospheric concentrations in the immediate vicinity during three growing cycles have been quantified. Additionally, vegetation along a transect in an adjacent woodland was analysed. The emissions were as high as 10 kg NH(3) h(-1) and the atmospheric concentrations ranged between 33 and 124 μg NH(3) m(-3) per week in the immediate vicinity. Measurements of the atmospheric concentrations over 7 weeks showed a substantial decline of mean concentrations (based on a 3-week average) from ∼13 to <3 μg NH(3) m(-3), at 45- and 415-m distance from the farm. Vegetation surveys showed that nitrophilous species flourished when they grew closest to the farm (their occurrence sank proportionately with distance). A clearly visible damage of pine trees was observed within 200 m of the farm; this illustrated the significant impact of NH(3) emissions from agricultural sources on the sensitive ecosystem.
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Affiliation(s)
- Kristina von Bobrutzki
- Department of Engineering for Livestock Management, Leibniz Institute for Agricultural Engineering Potsdam-Bornim, Max-Eyth-Allee 100, 14469 Potsdam, Germany.
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112
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Considerations on the application of miniaturized sample preparation approaches for the analysis of organic compounds in environmental matrices. OPEN CHEM 2012. [DOI: 10.2478/s11532-011-0114-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractThe miniaturization and improvement of sample preparation is a challenge that has been fulfilled up to a point in many fields of analytical chemistry. Particularly, the hyphenation of microextraction with advanced analytical techniques has allowed the monitoring of target analytes in a vast variety of environmental samples. Several benefits can be obtained when miniaturized techniques such as solid-phase microextraction (SPME) or liquid-phase microextraction (LPME) are applied, specifically, their easiness, rapidity and capability to separate and pre-concentrate target analytes with a negligible consumption of organic solvents. In spite of the great acceptance that these green sample preparation techniques have in environmental research, their full implementation has not been achieved or even attempted in some relevant environmental matrices. In this work, a critical review of the applications of LPME and SPME techniques to isolate and pre-concentrate traces of organic pollutants is provided. In addition, the influence of the environmental matrix on the effectiveness of LPME and SPME for isolating the target organic pollutants is addressed. Finally, unsolved issues that may hinder the application of these techniques for the extraction of dissolved organic matter from environmental samples and some suggestions for developing novel and less selective enrichment and isolation procedures for natural organic matter on the basis of SPME and LPME are included.
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113
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O'Brien D, Komarova T, Mueller JF. Determination of deployment specific chemical uptake rates for SPMD and PDMS using a passive flow monitor. MARINE POLLUTION BULLETIN 2012; 64:1005-1011. [PMID: 22406046 DOI: 10.1016/j.marpolbul.2012.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2011] [Revised: 01/25/2012] [Accepted: 02/01/2012] [Indexed: 05/31/2023]
Abstract
Passive sampling techniques facilitate the time-integrated measurement of pollutant concentrations through the use of a selective receiving phase. Accurate quantification using passive sampling devices rely on the implementation of methods that will negate the effects of environmental factors (flow, temperature, etc.) or that will allow the calculation of the chemical specific rates of uptake (R(s)) into the passive sampler employed. We have applied an in situ calibration technique based on the dissolution of gypsum to measure the average water velocity to which a sampler has been exposed. We demonstrate that the loss of gypsum from the passive flow monitor (PFM) can be applied to predict changes in R(s) dependent on flow when using the absorbent SPMD (semipermeable membrane device) and PDMS (polydimethyl siloxan) passive samplers. The application of the PFM will enhance the accuracy of measurements made when calculating and reporting environmental pollutant concentrations using a passive sampling device.
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Affiliation(s)
- Dominique O'Brien
- The University of Queensland, National Research Centre for Environmental Toxicology (Entox), 39 Kessels Rd, Coopers Plains, QLD 4108, Australia.
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114
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Camilleri J, Morin N, Miège C, Coquery M, Cren-Olivé C. Determination of the uptake and release rates of multifamilies of endocrine disruptor compounds on the polar C18 Chemcatcher. Three potential performance reference compounds to monitor polar pollutants in surface water by integrative sampling. J Chromatogr A 2012; 1237:37-45. [DOI: 10.1016/j.chroma.2012.03.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2011] [Revised: 02/24/2012] [Accepted: 03/07/2012] [Indexed: 10/28/2022]
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115
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Comparison of different triolein-based composite semipermeable membranes for passive sampling of organochlorine pesticides. CHINESE SCIENCE BULLETIN-CHINESE 2012. [DOI: 10.1007/s11434-012-5044-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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116
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Tang J, Chen S, Xu Y, Zhong W, Ma M, Wang Z. Calibration and field performance of triolein embedded acetate membranes for passive sampling persistent organic pollutants in water. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2012; 164:158-163. [PMID: 22361054 DOI: 10.1016/j.envpol.2012.01.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2011] [Revised: 01/09/2012] [Accepted: 01/15/2012] [Indexed: 05/31/2023]
Abstract
Triolein embedded cellulose acetate membrane (TECAM) passive samplers provide potentially powerful tool for monitoring time weighted average concentrations (C(TWA)) of trace hydrophobic organic contaminants in water. To study the field performance of TECAM, exchange kinetics of chemicals between water and TECAM were studied at different temperature and water flow rates. Results showed that the uptake rate constant (k(u)) in TECAM was less sensitive to temperature variation than the SPMD and Chemcatcher. The k(u) in TECAM was sensitive to even a slight change of the flow rate, which required the field calibration using performance reference compounds (PRCs). To estimate C(TWA) by TECAM, both empirical model and WBL model were compared in laboratory conditions, and only small differences were observed between the predicted and measured k(u). Field validation was conducted to test the sampler performance alongside spot sampling. A good agreement of water concentration was obtained by the two sampling techniques.
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Affiliation(s)
- Jianfeng Tang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
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117
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Ratola N, Amigo JM, Lacorte S, Barceló D, Psillakis E, Alves A. Comparison of PAH Levels and Sources in Pine Needles from Portugal, Spain, and Greece. ANAL LETT 2012. [DOI: 10.1080/00032719.2011.649452] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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118
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Allan SE, Smith BW, Anderson KA. Impact of the deepwater horizon oil spill on bioavailable polycyclic aromatic hydrocarbons in Gulf of Mexico coastal waters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:2033-9. [PMID: 22321043 PMCID: PMC3471659 DOI: 10.1021/es202942q] [Citation(s) in RCA: 205] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
An estimated 4.1 million barrels of oil and 2.1 million gallons of dispersants were released into the Gulf of Mexico during the Deepwater Horizon oil spill. There is a continued need for information about the impacts and long-term effects of the disaster on the Gulf of Mexico. The objectives of this study were to assess bioavailable polycyclic aromatic hydrocarbons (PAHs) in the coastal waters of four Gulf Coast states that were impacted by the spill. For over a year, beginning in May 2010, passive sampling devices were used to monitor the bioavailable concentration of PAHs. Prior to shoreline oiling, baseline data were obtained at all the study sites, allowing for direct before and after comparisons of PAH contamination. Significant increases in bioavailable PAHs were seen following the oil spill, however, preoiling levels were observed at all sites by March 2011. A return to elevated PAH concentrations, accompanied by a chemical fingerprint similar to that observed while the site was being impacted by the spill, was observed in Alabama in summer 2011. Chemical forensic modeling demonstrated that elevated PAH concentrations are associated with distinctive chemical profiles.
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Affiliation(s)
| | | | - Kim A. Anderson
- Corresponding Author: , Phone: 541-737-8501, Fax: 541-737-0497
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119
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120
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Gallego E, Roca FJ, Perales JF, Guardino X. Evaluation of the effect of different sampling time periods and ambient air pollutant concentrations on the performance of the Radiello diffusive sampler for the analysis of VOCs by TD-GC/MS. ACTA ACUST UNITED AC 2011; 13:2612-22. [PMID: 21829856 DOI: 10.1039/c1em10075k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of different sampling exposure times and ambient air pollutant concentrations on the performance of Radiello® samplers for analysis of volatile organic compounds (VOCs) is evaluated. Quadruplicate samples of Radiello® passive tubes were taken for 3, 4, 7 and 14 days. Samples were taken indoors during February and March 2010 and outdoors during July 2010 in La Canonja (Tarragona, Spain). The analysis was performed by automatic thermal desorption (ATD) coupled with capillary gas chromatography (GC)/mass spectrometry detection (MS). The results show significant differences (t-test, p < 0.05) between the amounts of VOCs obtained from the sum of two short sampling periods and a single equivalent longer sampling period for 65% of all the data. 17% of the results show significantly larger amounts of pollutant in the sum of two short sampling periods. Back diffusion due to changes in concentrations together with saturation and competitive effects between the compounds during longer sampling periods could be responsible for these differences. The other 48% of the results that are different show significantly larger amounts in the single equivalent longer sampling period. The remaining 35% of the results do not show significant differences. Although significant differences are observed in the amount of several VOCs collected over two shorter sampling intervals compared to the amount collected during a single equivalent longer sampling period, the ratios obtained are very close to unity (between 0.7 and 1.2 in 75% of cases). We conclude that Radiello® passive samplers are useful tools if their limitations are taken into account and the manufacturer's recommendations are followed.
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Affiliation(s)
- E Gallego
- Laboratori del Centre de Medi Ambient, Universitat Politècnica de Catalunya (LCMA-UPC), Avda. Diagonal, 647, E 08028, Barcelona, Spain.
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121
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Dévier MH, Mazellier P, Aït-Aïssa S, Budzinski H. New challenges in environmental analytical chemistry: Identification of toxic compounds in complex mixtures. CR CHIM 2011. [DOI: 10.1016/j.crci.2011.04.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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122
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Brattoli M, de Gennaro G, de Pinto V, Loiotile AD, Lovascio S, Penza M. Odour detection methods: olfactometry and chemical sensors. SENSORS (BASEL, SWITZERLAND) 2011; 11:5290-322. [PMID: 22163901 PMCID: PMC3231359 DOI: 10.3390/s110505290] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 05/05/2011] [Accepted: 05/05/2011] [Indexed: 11/26/2022]
Abstract
The complexity of the odours issue arises from the sensory nature of smell. From the evolutionary point of view olfaction is one of the oldest senses, allowing for seeking food, recognizing danger or communication: human olfaction is a protective sense as it allows the detection of potential illnesses or infections by taking into account the odour pleasantness/unpleasantness. Odours are mixtures of light and small molecules that, coming in contact with various human sensory systems, also at very low concentrations in the inhaled air, are able to stimulate an anatomical response: the experienced perception is the odour. Odour assessment is a key point in some industrial production processes (i.e., food, beverages, etc.) and it is acquiring steady importance in unusual technological fields (i.e., indoor air quality); this issue mainly concerns the environmental impact of various industrial activities (i.e., tanneries, refineries, slaughterhouses, distilleries, civil and industrial wastewater treatment plants, landfills and composting plants) as sources of olfactory nuisances, the top air pollution complaint. Although the human olfactory system is still regarded as the most important and effective "analytical instrument" for odour evaluation, the demand for more objective analytical methods, along with the discovery of materials with chemo-electronic properties, has boosted the development of sensor-based machine olfaction potentially imitating the biological system. This review examines the state of the art of both human and instrumental sensing currently used for the detection of odours. The olfactometric techniques employing a panel of trained experts are discussed and the strong and weak points of odour assessment through human detection are highlighted. The main features and the working principles of modern electronic noses (E-Noses) are then described, focusing on their better performances for environmental analysis. Odour emission monitoring carried out through both the techniques is finally reviewed in order to show the complementary responses of human and instrumental sensing.
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Affiliation(s)
- Magda Brattoli
- Department of Chemistry, University of Bari, via E.Orabona 4, 70126 Bari, Italy; E-Mails: (M.B.); (V.P.); (A.D.L.); (S.L.)
| | - Gianluigi de Gennaro
- Department of Chemistry, University of Bari, via E.Orabona 4, 70126 Bari, Italy; E-Mails: (M.B.); (V.P.); (A.D.L.); (S.L.)
| | - Valentina de Pinto
- Department of Chemistry, University of Bari, via E.Orabona 4, 70126 Bari, Italy; E-Mails: (M.B.); (V.P.); (A.D.L.); (S.L.)
| | - Annamaria Demarinis Loiotile
- Department of Chemistry, University of Bari, via E.Orabona 4, 70126 Bari, Italy; E-Mails: (M.B.); (V.P.); (A.D.L.); (S.L.)
| | - Sara Lovascio
- Department of Chemistry, University of Bari, via E.Orabona 4, 70126 Bari, Italy; E-Mails: (M.B.); (V.P.); (A.D.L.); (S.L.)
| | - Michele Penza
- Brindisi Technical Unit for Technologies of Materials, ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, P.O. Box 51 Br-4, I-72100 Brindisi, Italy; E-Mail:
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123
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O'Brien D, Hawker D, Shaw M, Mueller JF. The performance of passive flow monitors and phosphate accumulating passive samplers when exposed to pulses in external water flow rate and/or external phosphate concentrations. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2011; 159:1435-1441. [PMID: 21316824 DOI: 10.1016/j.envpol.2010.12.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 12/22/2010] [Accepted: 12/23/2010] [Indexed: 05/30/2023]
Abstract
Passive samplers are typically calibrated under constant flow and concentration conditions. This study assessed whether concentration and/or flow pulses could be integrated using a phosphate passive sampler (P-sampler). Assessment involved three 21-day experiments featuring a pulse in flow rate, a pulse of filterable reactive phosphate (FRP) concentration and a simultaneous concentration and flow pulse. FRP concentrations were also determined by parallel grab sampling and the P-sampler calibrated with passive flow monitors (PFMs) and direct measurement of flow rates. The mass lost from the PFM over the deployment periods predicted water velocity to within 5.1, 0.48 and 7.1% when exposed to a flow rate pulse (7.5-50 cm s(-1)), concentration pulse (5-100 μg P L(-1)), or both simultaneously. For the P-sampler, good agreement was observed between the grab and passive measurements of FRP concentration when exposed to a pulse in flow (6% overestimation) or concentration (2% underestimation).
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Affiliation(s)
- Dominique O'Brien
- The University of Queensland, National Research Centre for Environmental Toxicology (Entox), 39 Kessels Rd. Coopers Plains, QLD 4108, Australia.
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124
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O'Brien D, Bartkow M, Mueller JF. Determination of deployment specific chemical uptake rates for SDB-RPD Empore disk using a passive flow monitor (PFM). CHEMOSPHERE 2011; 83:1290-1295. [PMID: 21481913 DOI: 10.1016/j.chemosphere.2011.02.089] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2010] [Revised: 02/28/2011] [Accepted: 02/28/2011] [Indexed: 05/30/2023]
Abstract
The use of the adsorbent styrenedivinylbenzene-reverse phase sulfonated (SDB-RPD) Empore disk in a chemcatcher type passive sampler is routinely applied in Australia when monitoring herbicides in aquatic environments. One key challenge in the use of passive samplers is mitigating the potentially confounding effects of varying flow conditions on chemical uptake by the passive sampler. Performance reference compounds (PRCs) may be applied to correct sampling rates (R(s)) for site specific changed in flow and temperature however evidence suggests the use of PRCs is unreliable when applied to adsorbent passive samplers. The use of the passive flow monitor (PFM) has been introduced for the assessment of site-specific changes in water flow. In the presented study we have demonstrated that the R(s) at which both atrazine and prometryn are accumulated within the SDB-RPD-Empore disk is dependent on the flow conditions. Further, the calibration of the measured R(s) for chemical uptake by the SDB-RPD-Empore disk to the mass lost from the PFM has shown that the PFM provides an accurate measure of R(s) for flow velocities from 0 to 16cms(-1). Notably, for flow rates >16cms(-1), a non linear increase in the R(s) of both herbicides was observed which indicates that the key resistance to uptake into the SDB-RPD Empore disk is associated with the diffusion through the overlying diffusion limiting membrane. Overall the greatest uncertainty remains at very low flow conditions, which are unlikely to often occur in surface waters. Validation of the PFM use has also been undertaken in a limited field study.
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Affiliation(s)
- Dominique O'Brien
- The University of Queensland, National Research Centre for Environmental Toxicology (Entox), 39 Kessels Rd., Coopers Plains, QLD 4108, Australia.
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125
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Gallego E, Roca FJ, Perales JF, Guardino X. Comparative study of the adsorption performance of an active multi-sorbent bed tube (Carbotrap, Carbopack X, Carboxen 569) and a Radiello(®) diffusive sampler for the analysis of VOCs. Talanta 2011; 85:662-72. [PMID: 21645756 DOI: 10.1016/j.talanta.2011.04.043] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Revised: 04/08/2011] [Accepted: 04/15/2011] [Indexed: 11/27/2022]
Abstract
A simple comparison is made to evaluate the relative performance of active and passive sampling methods for the analysis of volatile organic compounds (VOCs) in ambient air. The active sampling is done through a multi-sorbent bed tube (Carbotrap, Carbopack X, Carboxen 569) created in our laboratory and the passive sampling through the Radiello(®) diffusive sampler specified for thermal desorption (filled with Carbograph 4). Daily duplicate samples of multi-sorbent bed tubes were taken during a period of 14 days. During the same period of time, quadruplicate samples of Radiello(®) tubes were taken during 3 days, 4 days, 7 days and 14 days. The sampling was carried out indoors during the months of February and March 2010 and outdoors during the month of July 2010 in La Canonja (Tarragona, Spain). The analysis was performed by automatic thermal desorption (ATD) coupled with capillary gas chromatography (GC)/mass spectrometry detector (MSD). The analytical performance of the two sampling approaches was evaluated by describing several quality assurance parameters. The results show that the analytical performances of the methodologies studied are quite similar. They display low limits of detection, good precision, accuracy and desorption efficiency, and low levels of breakthrough for multi-sorbent bed tubes. However, the two monitoring methods produced varying air-borne concentration data for most of the studied compounds, and the Radiello(®) samplers generally gave higher results. Sampling rates (Q(k)) were determined experimentally, and their values were higher than those supplied by the producer. As the experimental calculation of Q(k) values is generally carried out by the suppliers in exposure chambers with only the target compounds present in the air samples, as well as in concentrations dissimilar to those found in ambient air, the use of constant settled Q(k) can lead to inaccurate results in complex samples.
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Affiliation(s)
- E Gallego
- Laboratori del Centre de Medi Ambient, Universitat Politècnica de Catalunya (LCMA-UPC), Avda. Diagonal, 647. E 08028, Barcelona, Spain.
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126
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O'Brien DS, Booij K, Hawker DW, Mueller JF. Method for the in situ calibration of a passive phosphate sampler in estuarine and marine waters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:2871-2877. [PMID: 21370854 DOI: 10.1021/es101645z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Passive samplers for phosphate were calibrated in the laboratory over a range of flow velocities (0-27 cm s(-1)) and ionic strengths (0-0.62 mol kg(-1)). The observed sampling rates were between 0.006 and 0.20 L d(-1). An empirical model allowed the estimation of these sampling rates with a precision of 8.5%. Passive flow monitors (PFMs), based on gypsum dissolution rates, were calibrated for the same range of flow velocities and ionic strength. Mass loss rates of the PFMs increased with increasing ionic strength. We demonstrate that this increase is quantitatively accounted for by the increased gypsum solubility at higher ionic strengths. We provide a calculation scheme for these solubilities for an environmentally relevant range of temperatures and salinities. The results imply that co-deployed PFMs can be used for estimating the flow effect on the in situ sampling rates of the phosphate samplers, and we expect that the same may hold for other passive samplers.
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Affiliation(s)
- Dominique S O'Brien
- The University of Queensland, National Research Centre for Environmental Toxicology (Entox), 39 Kessels Road, Coopers Plains, Queensland 4108, Australia.
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127
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Zhang Y, Deng S, Liu Y, Shen G, Li X, Cao J, Wang X, Reid B, Tao S. A passive air sampler for characterizing the vertical concentration profile of gaseous phase polycyclic aromatic hydrocarbons in near soil surface air. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2011; 159:694-699. [PMID: 21216057 DOI: 10.1016/j.envpol.2010.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2010] [Revised: 12/08/2010] [Accepted: 12/09/2010] [Indexed: 05/30/2023]
Abstract
Air-soil exchange is an important process governing the fate of polycyclic aromatic hydrocarbons (PAHs). A novel passive air sampler was designed and tested for measuring the vertical concentration profile of 4 low molecular weight PAHs in gaseous phase (PAH(LMW4)) in near soil surface air. Air at various heights from 5 to 520 mm above the ground was sampled by polyurethane foam disks held in down-faced cartridges. The samplers were tested at three sites: A: an extremely contaminated site, B: a site near A, and C: a background site on a university campus. Vertical concentration gradients were revealed for PAH(LMW4) within a thin layer close to soil surface at the three sites. PAH concentrations either decreased (Site A) or increased (Sites B and C) with height, suggesting either deposition to or evaporation from soils. The sampler is a useful tool for investigating air-soil exchange of gaseous phase semi-volatile organic chemicals.
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Affiliation(s)
- Yuzhong Zhang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
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128
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Lissalde S, Mazzella N, Fauvelle V, Delmas F, Mazellier P, Legube B. Liquid chromatography coupled with tandem mass spectrometry method for thirty-three pesticides in natural water and comparison of performance between classical solid phase extraction and passive sampling approaches. J Chromatogr A 2011; 1218:1492-502. [PMID: 21300363 DOI: 10.1016/j.chroma.2011.01.040] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 01/03/2011] [Accepted: 01/15/2011] [Indexed: 11/28/2022]
Abstract
The aim of this study is to propose an analytical method for determining different classes of pesticides in water using LC-ESI-MS/MS. Two techniques of field-sampling and analyte extraction were used: solid phase extraction (SPE) of water samples from active sampling and field exposure of Polar Organic Chemical Integrative Samplers (POCIS). We have worked with thirty-three molecules representing eight pesticide classes: carbamates, chloroacetanilides, dicarboximides, morpholines, organophosphorous, phenylureas, strobilurines and triazines. First, liquid chromatography separation protocols and the optimization of the ESI-MS/MS parameters were developed. Then, the SPE step was optimized to obtain acceptable levels of recovery for the various classes of molecules. The matrix effect that may significantly lower the ionization efficiency with ESI interfaces was evaluated and minimized. The performances (limits of quantification, accuracy and precision) of the SPE and POCIS techniques were evaluated, and a comparison between the active and passive sampling techniques was carried out with a field application.
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Affiliation(s)
- Sophie Lissalde
- CEMAGREF, REBX Unit, 50 Avenue de Verdun, 33612 Cestas, France.
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129
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Canha N, Almeida M, Freitas MDC, Almeida SM, Wolterbeek HT. Seasonal variation of total particulate matter and children respiratory diseases at Lisbon primary schools using passive methods. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.proenv.2011.03.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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130
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Greening Sample Treatments. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/b978-0-444-53709-6.00005-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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131
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Seethapathy S, Górecki T. Polydimethylsiloxane-based permeation passive air sampler. Part I: Calibration constants and their relation to retention indices of the analytes. J Chromatogr A 2011; 1218:143-55. [DOI: 10.1016/j.chroma.2010.11.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2010] [Revised: 10/28/2010] [Accepted: 11/01/2010] [Indexed: 11/26/2022]
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132
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Seethapathy S, Górecki T. Polydimethylsiloxane-based permeation passive air sampler. Part II: Effect of temperature and humidity on the calibration constants. J Chromatogr A 2010; 1217:7907-13. [DOI: 10.1016/j.chroma.2010.10.057] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2010] [Revised: 10/11/2010] [Accepted: 10/14/2010] [Indexed: 11/29/2022]
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133
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Xia H, Wang J, Tian Y, Chen QD, Du XB, Zhang YL, He Y, Sun HB. Ferrofluids for fabrication of remotely controllable micro-nanomachines by two-photon polymerization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:3204-7. [PMID: 20603886 DOI: 10.1002/adma.201000542] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Affiliation(s)
- Hong Xia
- Jilin University, Changchun, People's Republic of China
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134
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An overview of sample preparation and extraction of synthetic pyrethroids from water, sediment and soil. J Chromatogr A 2010; 1217:5537-54. [PMID: 20650460 DOI: 10.1016/j.chroma.2010.06.058] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2009] [Revised: 05/29/2010] [Accepted: 06/23/2010] [Indexed: 11/22/2022]
Abstract
The latest developments in sample preparation and extraction of synthetic pyrethroids from environmental matrices viz., water, sediment and soil were reviewed. Though the synthetic pyrethroids were launched in 1970s, to the best of authors' knowledge there was no review on this subject until date. The present status and recent advances made during the last 10 years in sample preparation including conservation and extraction techniques used in determination of synthetic pyrethroids in water, sediment and soil were discussed. Pre- and post-extraction treatments, sample stability during extraction and its influence upon the whole process of analytical determination were covered. Relative merits and demerits including the green aspects of extraction were evaluated. The current trends and future prospects were also addressed.
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135
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Petrovic M, Farré M, de Alda ML, Perez S, Postigo C, Köck M, Radjenovic J, Gros M, Barcelo D. Recent trends in the liquid chromatography–mass spectrometry analysis of organic contaminants in environmental samples. J Chromatogr A 2010; 1217:4004-17. [DOI: 10.1016/j.chroma.2010.02.059] [Citation(s) in RCA: 182] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2009] [Revised: 02/19/2010] [Accepted: 02/24/2010] [Indexed: 11/16/2022]
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136
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Sturaro A, Rella R, Parvoli G, Ferrara D. Long-term phenol, cresols and BTEX monitoring in urban air. ENVIRONMENTAL MONITORING AND ASSESSMENT 2010; 164:93-100. [PMID: 19343513 DOI: 10.1007/s10661-009-0877-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2008] [Accepted: 03/10/2009] [Indexed: 05/27/2023]
Abstract
This paper reports the results of a long-term monitoring of benzene, toluene, ethylbenzene, xylenes (BTEX), phenol and cresols in the air of Padua during a wide period of the year 2007 using two radial passive samplers (Radiello system) equipped with BTEX- and phenol-specific cartridges. Two sites were monitored, one in the industrial area and one close to the town centre. Relevant pollution episodes have been observed during both the winter and summer periods. Benzene, together with toluene, ethylbenzene and xylenes showed their maximum concentrations during the winter season, but the secondary pollutant phenol was higher than benzene for a large period of the year when the meteorological conditions blocked the pollutants in the lower layers of the atmosphere and solar radiation increased the benzene photo-oxidation process.
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Affiliation(s)
- Alberto Sturaro
- C.N.R., Istituto per la Dinamica dei Processi Ambientali-IDPA, Unità di Padova, Corso Stati Uniti 4, 35127, Padua, Italy.
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137
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Garcia G, Allen AG, Cardoso AA. Development of a sensitive passive sampler using indigotrisulfonate for the determination of tropospheric ozone. ACTA ACUST UNITED AC 2010; 12:1325-9. [PMID: 20376406 DOI: 10.1039/b920254d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new sampling and analytical design for measurement of ambient ozone is presented. The procedure is based on ozone absorption and decoloration (at 600 nm) of indigotrisulfonate dye, where ozone adds itself across the carbon-carbon double bond of the indigo. A mean relative standard deviation of 8.6% was obtained using samplers exposed in triplicate, and a correlation coefficient (r) of 0.957 was achieved in parallel measurements using the samplers and a commercial UV ozone instrument. The devices were evaluated in a measurement campaign, mapping spatial and temporal trends of ozone concentrations in a region of southeast Brazil strongly influenced by seasonal agricultural biomass burning, with associated emissions of ozone precursors. Ozone concentrations were highest in rural areas and lowest at an urban site, due to formation during downwind transport and short-term depletion due to titration with nitric oxide. Ozone concentrations showed strong seasonal trends, due to the influences of precursor emissions, relative humidity and solar radiation intensity. Advantages of the technique include ease and speed of use, the ready availability of components, and excellent sensitivity. Achievable temporal resolution of ozone concentrations is 8 hours at an ambient ozone concentration of 3.8 ppb, or 2 hours at a concentration of 15.2 ppb.
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Affiliation(s)
- Gabriel Garcia
- Analytical Chemistry Department, Chemistry Institute, São Paulo State University, CP 355, CEP 14800-900, Brazil
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138
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Sanders NL, Sokol E, Perry RH, Huang G, Noll RJ, Duncan JS, Cooks RG. Hand-held mass spectrometer for environmentally relevant analytes using a variety of sampling and ionization methods. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2010; 16:11-20. [PMID: 20065521 DOI: 10.1255/ejms.1036] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A recently developed hand-held, rectilinear ion trap mass spectrometer, capable of performing in situ analysis, has been evaluated for a variety of environmentally relevant analytes. Different sampling and ionization methods were implemented, demonstrating the considerable versatility of this instrument. A discontinuous (viz. pulsed) atmospheric pressure inlet (DAPI) was used to introduce externally-generated analyte ions. Nitro compounds were ionized by electrosonic spray ionization (ESSI) yielding the protonated and sodiated forms of the molecular ion, as well as fragment ions. The amines 2,2,6,6-tetramethylpiperidine, triethylamine and 2,6-diphenylpyridine showed low parts per billion (ppb) detection limits. Vapor phase external ionization was used to examine the chemical warfare simulant dimethyl methylphosphonate and the insect repellant N,N-diethyl-m-toluamide. Membrane introduction mass spectrometry (MIMS) was used as the introduction system for hydrophobic analytes using a selectively permeable (polydimethylsiloxane) membrane placed within the vacuum manifold with subsequent ionization of the thermally desorbed neutral compounds inside the ion trap. MIMS allowed the quantitation of trace levels (a few ppb) of fluorinated compounds in the vapor phase. MIMS was also applied to the quantitation of aqueous polycyclic aromatic hydrocarbons (PAH's) with limits of detection again in the low ppb range for naphthalene, acenaphthene, anthracene and phenanthrene.
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Affiliation(s)
- Nathaniel L Sanders
- Department of Chemistry, Purdue University, West Lafayette, IN 47907-2084, USA
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139
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Shaw M, Furnas MJ, Fabricius K, Haynes D, Carter S, Eaglesham G, Mueller JF. Monitoring pesticides in the Great Barrier Reef. MARINE POLLUTION BULLETIN 2010; 60:113-122. [PMID: 19818971 DOI: 10.1016/j.marpolbul.2009.08.026] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2009] [Revised: 08/21/2009] [Accepted: 08/22/2009] [Indexed: 05/28/2023]
Abstract
Pesticide runoff from agriculture poses a threat to water quality in the world heritage listed Great Barrier Reef (GBR) and sensitive monitoring tools are needed to detect these pollutants. This study investigated the utility of passive samplers in this role through deployment during a wet and dry season at river mouths, two near-shore regions and an offshore region. The nearshore marine environment was shown to be contaminated with pesticides in both the dry and wet seasons (average water concentrations of 1.3-3.8 ng L(-1) and 2.2-6.4 ng L(-1), respectively), while no pesticides were detected further offshore. Continuous monitoring of two rivers over 13 months showed waters flowing to the GBR were contaminated with herbicides (diuron, atrazine, hexazinone) year round, with highest average concentrations present during summer (350 ng L(-1)). The use of passive samplers has enabled identification of insecticides in GBR waters which have not been reported in the literature previously.
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Affiliation(s)
- Melanie Shaw
- National Research Centre for Environmental Toxicology (EnTox), University of Queensland, 39 Kessels Rd., Coopers Plains, 4108 Qld, Australia.
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140
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Zabiegała B, Kot-Wasik A, Urbanowicz M, Namieśnik J. Passive sampling as a tool for obtaining reliable analytical information in environmental quality monitoring. Anal Bioanal Chem 2009; 396:273-96. [PMID: 19924407 DOI: 10.1007/s00216-009-3244-4] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Revised: 09/24/2009] [Accepted: 10/15/2009] [Indexed: 11/28/2022]
Abstract
Passive sampling technology has been developing very quickly for the past 20 years, and is widely used for monitoring pollutants in different environments, for example air, water, and soil. It has many significant advantages, including simplicity, low cost, no need for expensive and complicated equipment, no power requirements, unattended operation, and the ability to produce accurate results. The present generation of passive samplers enables detection and analysis of bioavailable pollutants at low and very low concentrations and investigation of the environmental concentration of organic and inorganic pollutants not only on the local scale but also on continental and global scales. This review describes the current application of passive sampling techniques in environmental analysis and monitoring, under both equilibrium and non-equilibrium conditions.
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Affiliation(s)
- Bozena Zabiegała
- Department of Analytical Chemistry Chemical Faculty, Gdansk University of Technology, 11/12 G. Narutowicza Str., 80-233, Gdańsk, Poland.
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141
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Shaw M, Negri A, Fabricius K, Mueller JF. Predicting water toxicity: pairing passive sampling with bioassays on the Great Barrier Reef. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2009; 95:108-116. [PMID: 19819564 DOI: 10.1016/j.aquatox.2009.08.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2009] [Revised: 08/26/2009] [Accepted: 08/27/2009] [Indexed: 05/28/2023]
Abstract
Many coral reefs worldwide occur adjacent to urban or agricultural land which places these ecosystems at threat of exposure to complex mixtures of pollutants. In this study, the pairing of passive sampler extracts with bioassays is proposed as a tool for predicting effects of organic pollutant mixtures on key biota within coral reef ecosystems. Passive samplers, SDB-RPS Empore disks, which sequester a mixture of the contaminants present in the environment, were deployed at three sites in the Great Barrier Reef (GBR). Extracts from these samplers were analysed for herbicides and applied to bioassays targeting integral life stages or functions of coral reef biota. Biota included scleractinian coral larvae, sea urchin larvae, a marine diatom and marine bacteria. Photosynthesis in the marine diatom Phaeodactylum tricornutum was inhibited at the sampled environmental concentration while an environmental concentration factor of 15 times inhibited luminescence in the marine bacterium Vibrio fischeri. Concentrations of 50 times sampled environmental levels of organic pollutants inhibited >90% of Acropora millepora settlement and 100-fold environmental enrichment inhibited 100% Heliocidaris tuberculata larval development. These results demonstrate the utility of pairing passive sampling with bioassays and reveal that mixtures of organic pollutants in the GBR have the potential to cause detrimental effects to coral reef biota.
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Affiliation(s)
- Melanie Shaw
- National Research Centre for Environmental Toxicology, University of Queensland, 39 Kessels Rd, Coopers Plains Qld 4108, Australia.
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142
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Gale RW, Cranor WL, Alvarez DA, Huckins JN, Petty JD, Robertson GL. Semivolatile organic compounds in residential air along the Arizona-Mexico border. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2009; 43:3054-3060. [PMID: 19534113 DOI: 10.1021/es803482u] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Concerns about indoor air quality and the potential effects on people living in these environments are increasing as more reports about the toxicities and the potential indoor air exposure levels of household-use chemicals and chemicals from housing and fumishing manufacture in air are being assessed. Gas chromatography/mass spectromery was used to confirm numerous airborne contaminants obtained from the analysis of semipermeable membrane devices deployed inside of 52 homes situated along the border between Arizona and Mexico. We also describe nontarget analytes in the organochlorine pesticide fractions of 12 of these homes; this fraction is also the most likely to contain the broadest scope of bioconcentratable chemicals accumulated from the indoor air. Approximately 400 individual components were identified, ranging from pesticides to a wide array of hydrocarbons, fragrances such as the musk xylenes, flavors relating to spices, aldehydes, alcohols, esters and phthalate esters, and other miscellaneous types of chemicals. The results presented in this study demonstrate unequivocally that the mixture of airborne chemicals present indoors is far more complex than previously demonstrated.
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Affiliation(s)
- Robert W Gale
- Columbia Environmental Research Center, United States Geological Survey, 4200 New Haven Road, Columbia, Missouri 65201, USA.
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143
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Affiliation(s)
- Soledad Rubio
- Department of Analytical Chemistry, Facultad de Ciencias, Edificio Anexo Marie Curie, Campus de Rabanales, 14071 Córdoba, Spain
| | - Dolores Pérez-Bendito
- Department of Analytical Chemistry, Facultad de Ciencias, Edificio Anexo Marie Curie, Campus de Rabanales, 14071 Córdoba, Spain
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144
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Yusà V, Coscollà C, Mellouki W, Pastor A, de la Guardia M. Sampling and analysis of pesticides in ambient air. J Chromatogr A 2009; 1216:2972-83. [DOI: 10.1016/j.chroma.2009.02.019] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2008] [Revised: 02/05/2009] [Accepted: 02/09/2009] [Indexed: 11/26/2022]
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145
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Bayen S, Ter Laak TL, Buffle J, Hermens JLM. Dynamic exposure of organisms and passive samplers to hydrophobic chemicals. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2009; 43:2206-2215. [PMID: 19452865 DOI: 10.1021/es8029895] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
An insight into the dynamic aspects of the accumulation process is essential for understanding bioaccumulation as well as effect studies of hydrophobic organic chemicals. This review presents an overview of kinetic studies with organisms (fish, bivalve, crustacean, insect, worm, algae, and protozoan) as well as passive samplers (solid and liquid phase microextraction, semipermeable membrane device, polymer sheet, solid-phase extraction, Chemcatcher, etc.) for the uptake of neutral nonpolar chemicals from the aqueous phase. Information about uptake rates, elimination rates, and 95% equilibration times was collected and analyzed with diffusion based models. The present literature review suggests that the surface to volume ratio appears to be a critical parameter for the uptake rate of the more hydrophobic chemicals both for samplers and organisms. In addition, as a very first approximation, the combination of the first-order kinetic model with the assumption that diffusion through the aqueous boundary layers is rate limiting, gives a reasonable description of the experimental kinetic data. In this way, the presented model might be used to estimate uptake and elimination rate constants of chemicals by organisms or passive samplers.
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Affiliation(s)
- Stéphane Bayen
- CABE, University of Geneva, Sciences II, 30 Quai Ernest Ansermet, CH 1211, Geneva 4, Switzerland.
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146
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Wong CS, MacLeod SL. JEM spotlight: recent advances in analysis of pharmaceuticals in the aquatic environment. ACTA ACUST UNITED AC 2009; 11:923-36. [PMID: 19436850 DOI: 10.1039/b819464e] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Both ecosystem and human health rely on clean, abundant supplies of water, thus many classes of potential pollutants are regulated. In recent years, the possible risks associated with largely uncontrolled inputs of pharmaceuticals to rivers, lakes, groundwater, and coastal waters, mainly via wastewater, have been a focus of much research. During this time, our capacity to sequester, identify, and quantify pharmaceuticals in environmental matrices has improved. Devices have emerged to allow passive uptake of drugs to augment or replace laborious grab sampling. Advances in sample preparation have streamlined extraction procedures and removed interfering matrix components. New instrumental techniques have allowed faster, more accurate and sensitive detection of drugs in water samples. This review highlights all of these advances, from sample collection to instrumental analysis, which will continue to help us better understand the fate and effects of pharmaceuticals in aquatic systems.
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Affiliation(s)
- Charles S Wong
- Environmental Studies Program and Department of Chemistry, Richardson College for the Environment, University of Winnipeg, Winnipeg, MB, R3B 2E9, Canada.
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147
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Sara O'Brien D, Chiswell B, Mueller JF. A novel method for the in situ calibration of flow effects on a phosphate passive sampler. ACTA ACUST UNITED AC 2009; 11:212-9. [DOI: 10.1039/b809901d] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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148
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Analysis of industrial contaminants in indoor air: Part 1. Volatile organic compounds, carbonyl compounds, polycyclic aromatic hydrocarbons and polychlorinated biphenyls. J Chromatogr A 2009; 1216:540-66. [DOI: 10.1016/j.chroma.2008.10.117] [Citation(s) in RCA: 140] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Revised: 10/27/2008] [Accepted: 10/31/2008] [Indexed: 11/20/2022]
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149
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Application of passive sampling devices for screening of micro-pollutants in marine aquaculture using LC-MS/MS. Talanta 2008; 77:1518-27. [PMID: 19084673 DOI: 10.1016/j.talanta.2008.09.047] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2008] [Revised: 09/17/2008] [Accepted: 09/21/2008] [Indexed: 11/20/2022]
Abstract
Knowledge on the presence of micro-pollutants, in particular emerging contaminants, such as pharmaceuticals, biocides or some pesticides, in semi-enclosed coastal areas, where fish farms are installed, is very limited. This article shows data on the presence of micro-pollutants over 1 year monitoring campaign carried out in a fish farm placed on the Mediterranean Sea. With this work, the results of the development of an analytical procedure which, makes use of passive sampling techniques (with polar organic chemical integrative samplers, POCIS, pharmaceutical configuration) and of the LC-QLIT-MS system, are presented. The development of the analytical procedure entail laboratory-based calibration with the samplers POCIS, for calculating uptake rates and sampling rates of compounds representative of a wide range of polarity (4.56>or=logK(ow)>or=-0.12). The uptake of the target compounds in the sampler POCIS, follows a linear pattern for most compounds, and sampling rates varied from 0.001 to 0.319l/d. The calibration experiments have shown that POCIS pharmaceutical configuration could be used for sampling other non-target compounds, such as pesticides and biocides with a logK(ow)<or=4. The sampling rates for each selected compound were obtained using spiked seawater for further estimation of time-weighted average (TWA) concentration of micro-pollutants in the water column, during the field study. An analytical method was developed with the LC-QLIT-MS system and validated to ensure a satisfactory performance for the detection of the target micro-pollutants in water. The limits of detection (LODs) achieved were between 0.01 and 1.50 microg/l. During the monitoring campaign, among the selected compounds, metronidazole, erythromycin, simazine, atrazine, diuron, terbutryn, irgarol, trimethoprim, carbaryl, flumequine, TCMTB and diphenyl sulphone (DPS) were detected. Most of target compounds found were at average concentrations which ranged from 0.01 to 75 ng/l. Irgarol, simazine, diuron, atrazine and DPS were the micro-pollutants most frequently detected over the period of the monitoring programme carried out.
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150
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Schäfer RB, Paschke A, Liess M. Aquatic passive sampling of a short-term thiacloprid pulse with the Chemcatcher: Impact of biofouling and use of a diffusion-limiting membrane on the sampling rate. J Chromatogr A 2008; 1203:1-6. [DOI: 10.1016/j.chroma.2008.05.098] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2008] [Revised: 05/24/2008] [Accepted: 05/27/2008] [Indexed: 11/26/2022]
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