Abstract:
:Using a groundwater flow and mass transport model, this study compared the capability of trenches with permeable backfill for capturing hypothetical contaminant plumes in homogeneous and heterogeneous unconfined aquifers. Longitudinal (parallel to groundwater flow), as well as conventional transverse (perpendicular to groundwater flow) trench configurations were considered. Alternate trench configurations intercepted the leading tip of an initial contaminant plume and had identical length, equal to the cross-gradient width of the plume. A longitudinal trench required 31% less time than its transverse counterpart to remediate a homogeneous aquifer. By contrast, in simulated heterogeneous aquifers, longitudinal remediation timeframes ranged from 41% less to 33% more than transverse trenches. Results suggest that longitudinal trenches may be a viable alternative for narrow contaminant plumes under low-groundwater velocity conditions, but may be impractical for plumes with wide leading tips, or in complex heterogeneous aquifers with divergent flow.
journal_name
Bull Environ Contam Toxicoljournal_title
Bulletin of environmental contamination and toxicologyauthors
Hudak PFdoi
10.1007/s00128-010-9962-7subject
Has Abstractpub_date
2010-04-01 00:00:00pages
418-21issue
4eissn
0007-4861issn
1432-0800journal_volume
84pub_type
杂志文章abstract::Concentrations of 12 metal(oid)s were investigated in the bloom-forming cyanobacteria and ambient water samples collected monthly between March 2009 and February 2010 at the Nanquan coast of Taihu Lake, China. The metal(oid) concentrations in ambient water decreased in the order Fe > Zn > Ni ≈ As ≈ Cu > Mn > Ag > Cr >...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-012-0666-z
更新日期:2012-08-01 00:00:00
abstract::Soils in three horizons from a naturally heavy metals enriched region were distributed into six size aggregates (> 2, 2-1, 1-0.6, 0.6-0.25, 0.25-0.053, < 0.053 mm) to determine the relationships of heavy metals (Cd, Cu, Mn and Pb) and iron oxides. The results showed that the percentage of microaggregates (size < 0.25 ...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-019-02739-2
更新日期:2020-01-01 00:00:00
abstract::The metal pollution in Sediments and Avicenna marina tissues in the Hara Biosphere Reserve was monitored for Lead (Pb), Cadmium (Cd), and Nickel (Ni) with atomic absorption spectrometer. The results showed that the mean concentration of Pb, Cd, and Ni in the water and sediments were much higher than the recommended th...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-012-0751-3
更新日期:2012-10-01 00:00:00
abstract::The lead content of whole blood of 62 sheep grazed continuously for 6 months near a major highway was compared with 38 sheep from a nearby uncontaminated area. Mean values of 0.90 and 0.20 microgram/ml were obtained. Four sheep from the contaminated area were placed in an uncontaminated paddock and the lead content of...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/BF01683484
更新日期:1978-07-01 00:00:00
abstract::Five-week-old female albino rats were given 0.2 or 20.0 mg of lead acetate by gastric intubation daily for seven days. Calcium-47, applied orally or intraperitoneally, was used as marker to assess calcium retention in the body and its excretion by faeces and urine. The animals were killed three days after the last app...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/BF01683423
更新日期:1977-09-01 00:00:00
abstract::Emamectin benzoate (Proclaim 5 SG) was applied to cabbage at 8.5 and 17 g a.i. ha⁻¹, during the head initiation stage. A high performance liquid chromatography (HPLC) analytical method, for the determination of emamectin benzoate in cabbage, was developed. Average recoveries of emamectin benzoate ranged from 92 % to 9...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-013-1013-8
更新日期:2013-07-01 00:00:00
abstract:CONCLUSIONS:Selective partition by vapor solvent sweeping, on borosilicate wool, of organochlorine pesticides from fruit and vegetable extracts in the present apparatus and with the present technique provides sufficient cleanup for subsequent electron capture detector analysis. Amounts of organochlorine pesticides from...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/BF01684066
更新日期:1966-11-01 00:00:00
abstract::The pollution of polycyclic aromatic hydrocarbons (PAHs) has been widely used to assess the potential impact of anthropogenic activities on aquatic environments because their occurrence in water is closely tied to urban activities. Many PAHs possess mutagenic and carcinogenic properties (Menzie et al. 1992). PAH distr...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-007-9092-z
更新日期:2007-08-01 00:00:00
abstract::The characteristics of atmospheric PM10- and PM2.5-bound polycyclic aromatic hydrocarbons (PAHs) were investigated in Tongling city, China. Results showed that the total concentrations of PM10- and PM2.5-bound PAHs exhibited distinct seasonal and spatial variability. The metallurgic sites showed the highest PAH concen...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-017-2217-0
更新日期:2018-02-01 00:00:00
abstract::The relationship between sex, size (length and weight) and metal concentrations in the tissues of two commercially valuable fish species (silver pomfret, Pampus argenteus and tiger tooth croaker, Otolithes ruber) from Persian Gulf were evaluated. Concentrations of the metals in fish species ranged as follows: Mn 0.743...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-012-0702-z
更新日期:2012-09-01 00:00:00
abstract::In the present study, a simple, mono step deep eutectic solvent (DES) extraction was developed for selective extraction of copper from sediment samples. The optimization of all experimental parameters, e.g. DES type, sample/DES ratio, contact time and temperature were performed with using BCR-280 R (lake sediment cert...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-017-2065-y
更新日期:2017-08-01 00:00:00
abstract::A decrease in the activity of choline acetyltransferase (ChAT) has been well documented in brains from individuals with Alzheimer's disease (AD) (Bird et al., 1983; McGeer, 1984). Decreased ChAT activity was also found in dialysis encephalopathy victims, but this reduction was less marked than that observed in AD (Yat...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/BF00194133
更新日期:1994-04-01 00:00:00
abstract::The present study evaluated the impact of cesium ((133)Cs) at four concentrations (0, 0.001, 0.01, and 0.1 mg L(-1)) on growth, concentrations of chlorophyll and carotenoid pigments, and oxidative stress responses in the charophyte, Nitella pseudoflabellata, over 30 days. Oxidative stress was quantified by measuring a...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-016-1736-4
更新日期:2016-03-01 00:00:00
abstract::The results of the Multi-Purpose Geochemical Survey in the Pearl River Delta (PRD) show that the pollution is serious. In this study, the influence of geological genesis, soil-forming process, and human activities on soil quality in PRD is analyzed, and the influence factors, genesis and spatial distributional charact...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-020-02924-8
更新日期:2020-07-17 00:00:00
abstract::This study focused on evaluating the metal and metalloid contamination and associated risks in the two vegetables crops, coriander (Coriandrum sativum) and spinach (Spinacia oleracea) treated with three water regimes, canal water, groundwater and municipal wastewater. These vegetables are widely consumed by people and...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-018-2448-8
更新日期:2018-12-01 00:00:00
abstract::In this study, the photodegradation of organophosphorus (OPs) pesticides in the honey medium was evaluated under sunlight irradiation. Some of the 22 samples collected at different sites contained OPs pesticides (Methyl parathion, Coumaphos and Fenitrothion) with an average of 8 ng/g. Moreover, three samples were foun...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-020-02858-1
更新日期:2020-06-01 00:00:00
abstract::Open top chambers were used to study the changes in photosynthesis, physiology and stomata characteristics in 1-year-old Lonicera maackii seedlings exposed to drought (DT, 30%-35% soil saturated water content) or/and elevated ozone (EO, 80 ppb). The results showed that DT or/and EO significantly decreased net photosyn...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-017-2179-2
更新日期:2017-11-01 00:00:00
abstract::Urea is the most frequently applied nitrogen (N) fertilizer in agriculture, while its loss is assumed triggering algal blooms in adjacent water bodies. In this context the present study assessed the growth, photosynthetic activity as well as toxin production of Microcystis aeruginosa at different urea concentrations (...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-014-1217-6
更新日期:2014-05-01 00:00:00
abstract::Malachite green, a multi-purpose dye induces cyto-toxicity upon its entry and bioaccumulation in tissues. A semi-static chronic (60 days) bioassay was conducted by exposing Cyprinus carpio to sublethal concentration of the dye and Emblica officinalis in four experimental groups viz control, malachite green, E. officin...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-019-02549-6
更新日期:2019-03-01 00:00:00
abstract::This study aimed to find the association between urinary aflatoxin M(1) level and milk and dairy products consumption. Of 160 morning urine samples collected, aflatoxin M(1) was detected in 61.3 % samples (n = 98) [mean ± SD = 0.0234 ± 0.0177 ng/mL; range = 0-0.0747 ng/mL]. Of these positive samples, 67.3 % (n = 66) h...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-012-0853-y
更新日期:2012-12-01 00:00:00
abstract::Yuma Proving Grounds (YPG) in western Arizona is a testing range where Depleted uranium (DU) penetrators have been historically fired. A portion of the fired DU penetrators are being managed under controlled conditions by leaving them in place. The widespread use of DU in armor-penetrating weapons has raised environme...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-016-1784-9
更新日期:2016-06-01 00:00:00
abstract::Effluents from on-site wastewater treatment systems can influence surface water quality, particularly when infrastructure is aging, malfunctioning, and improperly installed. Municipal wastewater often contains chemical compounds that can lead to adverse biological effects, such as reproductive impairment, in organisms...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-020-03021-6
更新日期:2020-11-01 00:00:00
abstract::Soil and groundwater from long-term (>50 years) tannery effluent irrigated areas of Kanpur were analyzed and significant buildup of heavy metals such as Cr, Ni, Cd, Pb, Zn, and As in the range of 252-972, 23-30, 2.3-14.1, 23.7-58.8, 138-338 and 6.8-11 mg kg-1, respectively in soil was found. Few groundwater samples in...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-016-1983-4
更新日期:2017-05-01 00:00:00
abstract::This study was conducted to investigate time-dependent changes in oxidative enzymes in liver of crucian carp after intraperitoneally injection with extracted microcystins 600 and 150 microg kg(-1) body weight. The results showed that activities of antioxidant enzymes, including superoxide dismutase, catalase, glutathi...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-009-9671-2
更新日期:2009-05-01 00:00:00
abstract::The levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (dl-PCBs) and hexachlorobenzene (HCB) were measured in various environmental compartments in Tangshan, China, which contains multiple thermal-related industries. The total toxic equivalent concentrations ...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-012-0735-3
更新日期:2012-09-01 00:00:00
abstract::Four paddy herbicides and their transformation products (TPs) were monitored in the Sakura River, Japan, during the rice growing seasons of 2009 and 2010. Toxicity tests to an attached diatom, Mayamaea atomus, and a green alga, Pseudokirchneriella subcapitata, were also conducted. Clomeprop propionic acid, which forms...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-011-0416-7
更新日期:2012-01-01 00:00:00
abstract::A novel analytical approach has been developed and evaluated for the quantitative analysis of 15 organophorous pesticides residues in camellia oils. The proposed methodology is based on acetonitrile/water (3:1, V/V) extraction, followed by matrix solid-phase dispersion, using aminopropyl as dispersant material. Then g...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-012-0818-1
更新日期:2012-11-01 00:00:00
abstract::Bioaugmentation-assisted phytoremediation implies the administration of selected plant growth promoting bacteria, which significantly improve plant growth and sequestration of heavy metals. In this work, 184 bacterial strains associated with roots of Pistacia lentiscus were isolated from plants spontaneously growing i...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-016-1866-8
更新日期:2017-03-01 00:00:00
abstract::This study was conducted to determine the concentration of 16 polycyclic aromatic hydrocarbons (PAHs) in sandstorm depositions in Beijing, China. The PAH concentrations in 13 samples collected in Beijing ranged from 0.18 to 3.52 microg g(-1). Analysis of the sources of contamination revealed that the PAHs were derived...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-008-9537-z
更新日期:2009-02-01 00:00:00
abstract::The present study was conducted to determine the VOCs concentrations in a service station located in a residential and commercial area in the city of Rio de Janeiro. This is, to our knowledge, the first published determination in Brazil, where both ethanol and ethanol-blended gasoline are used. Electro polished, stain...
journal_title:Bulletin of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00128-007-9181-z
更新日期:2007-08-01 00:00:00