Volatile organic compounds in two polluted rivers in Barcelona (Catalonia, Spain)

Gomez-Belinchon, Josep I.; Grimalt, Joan O.; Albaigés, Joan

doi:10.1016/0043-1354(91)90130-i

Cited by 36 publications

(12 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The extensive use of these compounds has led to their substantial release into the environment (Gomez-Belinchon et al 1991;Jan et al 1994;Kot-Wasik et al 2003;Feidieker et al 1994), necessitating effective treatment methods. Chlorothymols (CTh) are applied as effective fungicide components and chlorocresols (CCr) can be found in metalworking fluids, pharmaceutical products and agricultural pesticides.…”

Section: Introductionmentioning

confidence: 99%

Use of Hydrogen Peroxide and Percarbonate to Treat Chlorinated Aromatic Hydrocarbon-Contaminated Soil

Viisimaa

Goi

2014

Journal of Environmental Engineering and Landscape Management

View full text Add to dashboard Cite

Trinitrotoluene (TNT), a commonly used explosive for military and industrial applications, can cause serious environmental pollution. 28-day laboratory pot experiment was carried out applying bioaugmentation using laboratory selected bacterial strains as inoculum, biostimulation with molasses and cabbage leaf extract, and phytoremediation using rye and blue fenugreek to study the effect of these treatments on TNT removal and changes in soil microbial community responsible for contaminant degradation. Chemical analyses revealed significant decreases in TNT concentrations, including reduction of some of the TNT to its amino derivates during the 28-day tests. The combination of bioaugmentation-biostimulation approach coupled with rye cultivation had the most profound effect on TNT degradation. Although plants enhanced the total microbial community abundance, blue fenugreek cultivation did not significantly affect the TNT degradation rate. The results from molecular analyses suggested the survival and elevation of the introduced bacterial strains throughout the experiment. Reference to this paper should be made as follows: Nõ lvak, H.; Truu, J.; Limane, B.; Truu, M.; Cepurnieks, G.; Bartkevičs, V.; Juhanson, J.; Muter, O. 2013. Microbial community changes in TNT spiked soil bioremediation trial using biostimulation, phytoremediation and bioaugmentation, Journal of Environmental Engineering and Landscape Management 21(3): 153Á162. http://dx.Abstract. This study compared treatment methods that utilised a liquid carrier of hydrogen peroxide and a solid carrier, percarbonate, for p-dichlorobenzene, p-chloro-m-cresol and p-chlorothymol degradation in the soil. The targeted chlorinated aromatic contaminants in the soil degraded to a certain level when treated with the liquid hydrogen peroxide, but the removal efficacy was not dependent on the dosage. In contrast, an increase in the percarbonate dosage enhanced the contaminant removal. Supplementary ferrous iron was more effective for the treatment that employed the liquid carrier of hydrogen peroxide than the treatment employing the solid carrier. Although acidic pH conditions (initial pH of 2.5) favoured contaminant degradation using liquid hydrogen peroxide, the treatment involving percarbonate resulted in more effective contaminant removal without any soil pH preadjustment. Therefore, the solid carrier of hydrogen peroxide, percarbonate, was concluded to be an effective alternative to the liquid carrier, resulting in greater contaminant removal at natural soil pH values.

show abstract

Section: Introductionmentioning

confidence: 99%

Use of Hydrogen Peroxide and Percarbonate to Treat Chlorinated Aromatic Hydrocarbon-Contaminated Soil

Viisimaa

Goi

2014

Journal of Environmental Engineering and Landscape Management

View full text Add to dashboard Cite

show abstract

“…Concentrations in the Morava River in Slovakia range from a winter maximum of 0.58 µg/L to a summer maximum of 3.49 µg/L [2]; in Spain, levels as high as 22 µg/L have been detected at the mouth of the Besos River [50]. In coastal waters, maximum levels of 1 µg/L have been found [2].…”

Section: Resultsmentioning

confidence: 99%

Groundwater Natural Contamination by Toluene in Beja and Faro Districts, Portugal

et al. 2018

View full text Add to dashboard Cite

Abstract:The focus area is located along Beja and Faro districts (southwestern of Portugal), where the Baixo Alentejo Flysch Group exists, is composed of the Mértola, Mira, and Brejeira Formations. The aim of this article is to characterize the groundwater contamination by toluene, one of the petroleum products that may originate from natural petroleum systems and have been introduced into the environment by natural seepage. For this study, twenty soil samples and thirty-one water samples were collected, in 2016, from artesian wells, boreholes, and springs, and analyzed in a GC-FID system. Sampling was performed using headspace vials, with distilled water and a bactericide to inhibit any bacterial activities. The results showed that 93.5% of water samples range between 1000 and 6000 µg/L, and 55% are higher than 3000 µg/L of toluene concentration. In soil samples, amounts of toluene are less than 1000 µg/L in general. These levels are much higher than the World Health Organization health-based guideline for drinkable water (700 µg/L) and higher than those usually found in other places, being only comparable with values from severe industrial contamination. Contaminated groundwater represents a serious concern for human health, and residents should be informed to avoid drinking contaminated ground water or using it for other domestic proposes.

show abstract

“…In the waste timber, which included bearers and columns from demolished buildings, PCNs was detected at the highest concentration of 0.036 mg/kg [6]. The concentrations of monochlorinated naphthalenes (MoCN) and DiCN were detected in the range of 650−750 and 150−260 ng/L in two polluted rivers in Spain, respectively [7]. Furthermore, another research reported the total PCNs concentration was 0.89 ng/L in the river in Sweden [8].…”

Section: Introductionmentioning

confidence: 96%

“…Gas chromatography/high-resolution mass spectrometry (GC/HRMS) is a sensitive and selective method that has been adopted for the analysis of persistent halogenated organic pollutants including polychlorinated dibenzo-pdioxins, polychlorinated dibenzofurans, and polychlorinated biphenyls, which are similar to PCNs in structure. Although a PCN analysis method has been provided for relatively clean environmental water samples or air samples [7][8][9][10][11], methods for analyzing leachate samples have not yet been developed. Owing to the high concentrations of organic matter, salinity, and pH of leachate samples, it is unknown whether existing analytical methods can be applied.…”

Section: Introductionmentioning

confidence: 99%

Isomer-Specific Determination of Polychlorinated Naphthalenes in Landfill Leachates by Gas Chromatography/High-Resolution Mass Spectrometry

Daifuku

Ito

Banno

et al. 2019

J. of Wat. & Envir. Tech.

View full text Add to dashboard Cite

As environmental contamination resulting from the release of polychlorinated naphthalenes (PCNs) from landfills is of concern, methods are required to quantify PCNs in landfill leachates. In this study, an isomer-specific analytical method for the determination of PCNs in leachate samples was developed using gas chromatography/high-resolution mass spectrometry. The leachate samples were flocculated and the flocks were extracted using Dean-Stark Soxhlet extraction. The sample extracts were cleaned up automatically using SPD-600GC equipped with a multilayer silica gel column (silica gel/H 2 SO 4 silica gel/AgNO 3 silica gel) and a carbon-dispersed silica gel column. The method achieved PCN recovery rates of 81%-105% with instrument detection limits between 0.05 and 0.1 pg and method detection limits (MDLs) between 0.4 and 4 pg/L for the leachate extracts. The concentrations of PCNs in the leachate samples ranged from less than the MDL to 490 pg/L. The detected PCNs mainly consisted of low-chlorinated components, and the contents of PCNs were reduced following a water treatment process. This analytical method, which is among the most comprehensive isomerspecific methods available for PCNs at present, is based on existing techniques for the quantification of polychlorinated dioxins and furans and thus can be readily adopted by other laboratories.

show abstract

Volatile organic compounds in two polluted rivers in Barcelona (Catalonia, Spain)

Cited by 36 publications

References 18 publications

Use of Hydrogen Peroxide and Percarbonate to Treat Chlorinated Aromatic Hydrocarbon-Contaminated Soil

Use of Hydrogen Peroxide and Percarbonate to Treat Chlorinated Aromatic Hydrocarbon-Contaminated Soil

Groundwater Natural Contamination by Toluene in Beja and Faro Districts, Portugal

Isomer-Specific Determination of Polychlorinated Naphthalenes in Landfill Leachates by Gas Chromatography/High-Resolution Mass Spectrometry

Contact Info

Product

Resources

About