Journal of Environmental Monitoring最新文献_第9页

Monitoring of volatile organic compounds using a single tin dioxide sensor. 使用单一二氧化锡传感器监测挥发性有机化合物。

Journal of Environmental Monitoring Pub Date : 2012-10-26 Epub Date: 2012-08-23 DOI: 10.1039/c2em30224a

Florin Caldararu, Cosmin Vatra, Mira Caldararu

引用次数: 3

2-Butoxyethanol from cleaning products responsible for complaints in workplaces: a case study. 清洁产品中的2-丁氧基乙醇对工作场所投诉负责:案例研究。

Journal of Environmental Monitoring Pub Date : 2012-10-26 Epub Date: 2012-08-16 DOI: 10.1039/c2em30499f

R Rella, A Sturaro, A Vianello

引用次数: 4

Using passive air samplers to assess local sources versus long range atmospheric transport of POPs. 使用被动空气采样器评估持久性有机污染物的本地来源与远距离大气输送。

Journal of Environmental Monitoring Pub Date : 2012-10-26 Epub Date: 2012-09-13 DOI: 10.1039/c2em30378g

Anne Karine Halse, Martin Schlabach, Andy Sweetman, Kevin C Jones, Knut Breivik

{"title":"Using passive air samplers to assess local sources versus long range atmospheric transport of POPs.","authors":"Anne Karine Halse, Martin Schlabach, Andy Sweetman, Kevin C Jones, Knut Breivik","doi":"10.1039/c2em30378g","DOIUrl":"https://doi.org/10.1039/c2em30378g","url":null,"abstract":"Passive air samplers (PAS) are cost-efficient tools suitable for spatial mapping of atmospheric concentrations of persistent organic pollutants (POPs). The objective of this study was to use PAS to (i) determine atmospheric concentrations of selected POPs in Norwegian coastal zones with consumption advisories on seafood (N = 22), and (ii) evaluate a simple nested monitoring approach to assess the relative influence of local vs. long-range atmospheric transport (LRAT) at coastal sites. The latter was facilitated by comparison with data from a coordinated European-wide campaign in which an identical sampling and analytical approach was followed. Air concentrations were calculated based on the loss of performance reference compounds (PRCs), and results are presented for selected polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), hexachlorocyclohexanes (HCHs), hexachlorobenzene (HCB), dichlorodiphenyltrichloroethanes (DDTs) and chlordanes. Air concentrations of PCBs were generally highest at sites within larger cities and up to about an order of magnitude higher than anticipated on the basis of LRAT alone. The distribution of PAHs and HCB occasionally showed elevated concentrations at coastal sites with ongoing or former industrial activity, while an urban site was significantly influenced by banned insecticides (technical DDT and lindane). Coastal sites were also elevated in α-HCH beyond the anticipated LRAT contribution, which we attribute to volatilization from the sea. We conclude that a simple nested PAS monitoring approach provides useful information for screening efforts aiming to assess both atmospheric burdens as well as the relative significance of local sources in controlling these burdens at sites in contaminated areas.","PeriodicalId":50202,"journal":{"name":"Journal of Environmental Monitoring","volume":"14 10","pages":"2580-90"},"PeriodicalIF":0.0,"publicationDate":"2012-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1039/c2em30378g","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30901256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

An economic appraisal of using source separation of human urine to contain and treat endocrine disrupters in the USA. 在美国使用人类尿液源分离来控制和治疗内分泌干扰物的经济评估。

Journal of Environmental Monitoring Pub Date : 2012-10-26 Epub Date: 2012-08-28 DOI: 10.1039/c2em30254c

Krishna Lamichhane, Roger Babcock

{"title":"An economic appraisal of using source separation of human urine to contain and treat endocrine disrupters in the USA.","authors":"Krishna Lamichhane, Roger Babcock","doi":"10.1039/c2em30254c","DOIUrl":"https://doi.org/10.1039/c2em30254c","url":null,"abstract":"Elevated concentrations of estrogens in natural waters pose a significant threat to public health and aquatic ecosystems. Both natural (estrone, 17β-estradiol and estriol) and synthetic (17α ethynylestradiol) estrogens, ubiquitous in wastewater effluents and receiving waters, have been shown to affect the endocrine system of human and aquatic life. The effects vary from cancer to sex reversals at levels as low as parts per trillion in sensitive organisms. Separation of urine, which constitutes only about 1% of domestic sewage and contains nearly all of the excreted estrogens, potentially offers an energy-efficient way to contain and then treat these chemicals. With a capital expense of $2100 and operation and maintenance costs of $69 per year for a urine diverting toilet system, a family in the USA can realize estimated savings of $101 per year in energy, water, and nutrients and a decrease of 100 kg in greenhouse gas emissions. To remove 99% of estrogenicity in discharged waters would require approximately 12 kW h per year using continuous electrodialysis followed by ozonation (O(3)) of source separated urine. To achieve the same results by adding O(3) treatment after activated sludge at existing municipal wastewater treatment plants would require 23 kW h per year. From an energy standpoint it makes sense to practice source separation and treatment of urine to limit estrogen discharges into the environment.","PeriodicalId":50202,"journal":{"name":"Journal of Environmental Monitoring","volume":"14 10","pages":"2557-65"},"PeriodicalIF":0.0,"publicationDate":"2012-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1039/c2em30254c","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30864172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Comprehensive environmental review following the pork PCB/dioxin contamination incident in Ireland. 爱尔兰猪肉多氯联苯/二恶英污染事件后的全面环境审查。

Journal of Environmental Monitoring Pub Date : 2012-10-26 Epub Date: 2012-08-20 DOI: 10.1039/c2em30374d

Ian Marnane

引用次数: 26

Fecal coliform population dynamics associated with the thermophilic stabilization of treated sewage sludge. 粪大肠菌群种群动态与处理过的污水污泥的嗜热稳定性有关。

Journal of Environmental Monitoring Pub Date : 2012-10-26 Epub Date: 2012-09-07 DOI: 10.1039/c2em30373f

Chris Ziemba, Jordan Peccia

{"title":"Fecal coliform population dynamics associated with the thermophilic stabilization of treated sewage sludge.","authors":"Chris Ziemba, Jordan Peccia","doi":"10.1039/c2em30373f","DOIUrl":"https://doi.org/10.1039/c2em30373f","url":null,"abstract":"The inactivation of fecal coliforms in anaerobic batch reactors has been investigated at the thermophilic temperatures of 50, 55 and 60 °C. Throughout inactivation experiments at each temperature, individual colonies were isolated and identified by 16S rDNA gene sequencing to illustrate how the diversity of fecal coliforms is affected by thermophilic treatment. Results indicate that even though fecal coliforms in raw sewage sludge are comprised of several different bacterial species, each with variable temperature induced decay rates, the overall inactivation of fecal coliforms in raw sewage sludge was found to follow a first-order relationship. No tailing was observed across the range of fecal coliform concentrations measured. Fecal coliforms in raw sludge contained six different genera of bacteria and were 62% enriched in E. coli. Within 1.5 log removal of fecal coliform concentration by thermophilic treatment, the populations had shifted to, and remained at 100% E. coli. Subsequent inactivation rates measured in isolated fecal coliform strains confirmed that E. coli cells isolated post-treatment were more thermotolerant than E. coli and non-E coli bacteria isolated prior to thermal treatment. Overall, this study describes the potential enrichment of thermotolerant E. coli in biosolids fecal coliforms and demonstrates that while thermotolerant species are present at the end of treatment, pure first-order approximations are appropriate for estimating residence times to reduce fecal coliforms to levels promulgated in U.S. Class A biosolids standards.","PeriodicalId":50202,"journal":{"name":"Journal of Environmental Monitoring","volume":"14 10","pages":"2755-61"},"PeriodicalIF":0.0,"publicationDate":"2012-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1039/c2em30373f","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30886960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Response to comments on ‘Assessment of prenatal mercury exposure in a predominately Caribbean immigrant community in Brooklyn, NY’ 对“纽约布鲁克林一个以加勒比移民为主的社区产前汞暴露评估”评论的回应

Journal of Environmental Monitoring Pub Date : 2012-09-26 DOI: 10.1039/C2EM30666B

L. Geer, M. Persad, C. D. Palmer, Amy J. Steuerwald, M. Dalloul, O. Abulafia, P. Parsons

引用次数: 0

The use of δ¹⁵N signatures of translocated macroalgae to map coastal nutrient plumes: improving species selection and spatial analysis of metropolitan datasets. 利用迁移大型藻类的δ¹5 N特征来绘制沿海营养羽流:改进物种选择和大都市数据集的空间分析。

Journal of Environmental Monitoring Pub Date : 2012-09-01 Epub Date: 2012-07-20 DOI: 10.1039/c2em10997b

M Fernandes, S Benger, S K Sharma, S Gaylard, T Kildea, S Hoare, M Braley, A D Irving

{"title":"The use of δ¹⁵N signatures of translocated macroalgae to map coastal nutrient plumes: improving species selection and spatial analysis of metropolitan datasets.","authors":"M Fernandes, S Benger, S K Sharma, S Gaylard, T Kildea, S Hoare, M Braley, A D Irving","doi":"10.1039/c2em10997b","DOIUrl":"https://doi.org/10.1039/c2em10997b","url":null,"abstract":"The definition of the spatial footprint of land-derived nutrient plumes is a key element to the design of initiatives to combat eutrophication in urbanised coastal regions. These plumes, however, are difficult to monitor because of their inherent high-frequency temporal and spatial variability. Biomonitoring with macroalgae provides time-integration of bioavailable nitrogen inputs through the measurement of δ¹⁵N signatures in tissues, and adequate spatial coverage through translocation to desirable monitoring locations. In this study, we used laboratory incubations to compare three different species of macroalgae as bioindicators, and a field experiment to investigate the applicability of the technique for the large-scale mapping of nutrient plumes. Cladophora valonioides was selected for the field experiment as it showed rapid changes in δ¹⁵N values in the laboratory incubations, was abundant in shallow depths making collection cost-efficient, and had tough thalli capable of withstanding deployment in open water. Ecklonia radiata also performed well in the laboratory incubations, but field harvest from subtidal depths was comparatively more expensive. Ulva lactuca had fragile thalli, and large nitrogen reserves that acted to mask the isotopic signal of newly acquired nitrogen. Cladophora valonioides was translocated to 246 sites covering an area of ∼445 km² along the highly urbanized temperate coast of Adelaide, South Australia. The resulting isotopic signatures of nitrogen in tissues were spatially interpolated to produce maps of land-derived nutrient plumes, to model probability and standard error in the predictive surface, and to optimize sampling design.","PeriodicalId":50202,"journal":{"name":"Journal of Environmental Monitoring","volume":"14 9","pages":"2399-410"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1039/c2em10997b","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30776533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Removal of 17α-ethinylestradiol from a sterile WC medium by the cyanobacteria Microcystis novacekii. 新微囊藻蓝藻从无菌WC培养基中去除17α-炔雌醇。

Journal of Environmental Monitoring Pub Date : 2012-09-01 Epub Date: 2012-07-13 DOI: 10.1039/c2em30320e

Isabela Araujo Fioravante, Bruna Albergaria, Taciane Silveira Teodoro, Sérgia Maria Starling Magalhães, Francisco Barbosa, Rodinei Augusti

{"title":"Removal of 17α-ethinylestradiol from a sterile WC medium by the cyanobacteria Microcystis novacekii.","authors":"Isabela Araujo Fioravante, Bruna Albergaria, Taciane Silveira Teodoro, Sérgia Maria Starling Magalhães, Francisco Barbosa, Rodinei Augusti","doi":"10.1039/c2em30320e","DOIUrl":"https://doi.org/10.1039/c2em30320e","url":null,"abstract":"An unprecedented investigation dealing with the removal of 17α-ethinylestradiol (EE2, a contraceptive hormone) by the cyanobacteria Microcystis novacekii (a species that is abundant and easily accessible in Brazilian lakes) from a sterile WC medium is described herein. The results indicated that whereas EE2 experienced insignificant spontaneous degradation, Microcystis novacekii was capable of removing ca. 65% of the hormone from the culture medium. Furthermore, no metabolites were detected at the concentration levels evaluated (0.10 to 0.17 mg L(-1)) as verified by the use of GC-MS, a quite sensitive analytical technique, and adequate pre-concentration procedures (SPME and liquid extraction). Elucidative experiments, including an appropriate cell lyses procedure, indicated that EE2 was likely accumulated within the cells (bioaccumulation) rather than adsorbed on the cellular membrane (biosorption). Moreover, the intra- and extracellular contents of EE2 were shown to be roughly complementary. Finally, the species was found to be highly tolerant to the hormone as its growth rates were higher in the test than in the control experiments. All these findings, therefore, point to the use of Microcystis novacekii as a potential agent to treat effluents contaminated with EE2.","PeriodicalId":50202,"journal":{"name":"Journal of Environmental Monitoring","volume":"14 9","pages":"2362-6"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1039/c2em30320e","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30762726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Quantifying the influence of EDTA on polymer nanoparticle deposition and retention in an iron-oxide-coated sand column. EDTA对氧化铁包覆砂柱中聚合物纳米颗粒沉积和滞留的影响。

Journal of Environmental Monitoring Pub Date : 2012-09-01 Epub Date: 2012-07-16 DOI: 10.1039/c2em30145h

Xinyao Yang, Dongxu Liang, Shihuai Deng

{"title":"Quantifying the influence of EDTA on polymer nanoparticle deposition and retention in an iron-oxide-coated sand column.","authors":"Xinyao Yang, Dongxu Liang, Shihuai Deng","doi":"10.1039/c2em30145h","DOIUrl":"https://doi.org/10.1039/c2em30145h","url":null,"abstract":"Ethylenediaminotetraacetic acid (EDTA) occurring in groundwater aquifers complicates the prediction of nanoparticle movement in the porous medium. This paper demonstrates an approach combining Triple Pulse Experiments (TPEs) and numerical modelling to quantify the influence of EDTA on the deposition and retention of polymer nanoparticles in a water-saturated column packed with iron-oxide-coated sand. TPEs injecting three successive pulses in the order of nanoparticle, EDTA, nanoparticle permit nanoparticle deposition in the absence and the presence of EDTA to be compared. Random Sequential Adsorption (RSA) modelling of the nanoparticle breakthrough curves combining mass balance calculation allows the influence of EDTA to be quantified. TPE results demonstrate that the injected EDTA eluted the oxide coatings (favorable deposition sites) from the sand surface and the resulting decline in sites led to enhanced nanoparticle mobility in the subsequent pulse. Quantification results suggest that at the experimental time-scale and under the controlled conditions, elution of one deposition site requires injection of 2.4 × 10(11) EDTA molecules. In total, 75 gram EDTA needs to be injected to remove all the column sites.","PeriodicalId":50202,"journal":{"name":"Journal of Environmental Monitoring","volume":"14 9","pages":"2392-8"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1039/c2em30145h","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30764063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6