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11.772 Aktuelle Fachpublikationen zum Thema temperature

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Real time monitoring of gases emitted from soils using a multi-turn time-of-flight mass spectrometer “MULTUM-S II”

21.10.2014 | Takahiro Anan; Shuichi Shimma; Yo Toma; Yasuyuki Hashidoko; Ryusuke Hatano; Michisato Toyoda, Journal of Environmental Monitoring, 2014

Many miniaturized mass spectrometers used for on-site analysis have been designed and developed recently utilizing a broad range of analyzer platforms. These instruments are expected to have widespread applications covering many fields of interest. In our laboratory, a miniaturized multi-turn ...

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Laboratory study of the performance of the handheld Diffusion Size Classifier (DiSCmini) for various aerosols in the 15-400 nm range

21.10.2014 | Sébastien Bau; Baptiste Zimmermann; Raphaël Payet; Olivier Witschger, Journal of Environmental Monitoring, 2014

In addition to chemical composition, particle concentration and size are among the main parameters used to characterize exposure to airborne ultrafine or nanoparticles. To assess occupational inhalation exposure, real-time instruments are recommended in the recent strategies published. Among ...

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Emerging pollutants in the Esmeraldas watershed in Ecuador: Discharge and attenuation of emerging organic pollutants along the San Pedro-Guayllabamba-Esmeraldas Rivers

21.10.2014 | Anna Voloshenko-Rossin; Guy Gasser; Keren Cohen; Jenny Gun; Luis Cumbal Flores; Wilson Parra Morales; Freddy Sarabia ..., Journal of Environmental Monitoring, 2014

Water quality characteristics and emerging organic pollutants were sampled along the San Pedro-Guayllabamba-Esmeraldas River and its main water pollution streams in the summer of 2013. The annual flow rate of the stream is 22,000 Mm3 and it collects the wastewater of Quito-Ecuador in the Andes ...

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An evaluation of the 'GGP' personal samplers under semi-volatile aerosols: sampling losses and their implication on occupational risk assessment

21.10.2014 | George Constantin Dragan; Dietmar Breuer; Morten Blaskowitz; Erwin Karg; Schnelle-Kreis Juergen; Jose Manuel Arteaga ..., Journal of Environmental Monitoring, 2014

Semi-Volatile (SV) aerosols still represent an important challenge to industrial hygienists due to toxicological and sampling issues. Particularly problematic is the sampling of hazardous SV that are present in both particulate and vapour phases at a workplace. In this study we investigate the ...

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Factors influencing uncertainties of in vivo bone lead measurement using a 109Cd K X-ray fluorescence clover leaf geometry detector system

21.10.2014 | Sepideh Behinaein; David R. Chettle; Leonora Marro; Morie Malowany; Mandy Fisher; David E. B. Fleming; Norm Healey; ..., Journal of Environmental Monitoring, 2014

A 109Cd K X-ray fluorescence (KXRF) measurement system consisting of four detectors in clover-leaf geometry is a non-invasive, low-radiation-dose method of measuring bone lead concentration. Its high precision in estimating the bone lead content makes it a promising tool for the determination of ...

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Applications of Polyparameter Linear Free Energy Relationships in Environmental Chemistry

17.10.2014 | Satoshi Endo; Kai-Uwe Goss, Environmental Science & Technology, 2014

Partitioning behavior of organic chemicals has tremendous influences on their environmental distribution, reaction rates, bioaccumulation, and toxic effects. Polyparameter linear free energy relationships (PP-LFERs) have been proven to be useful to characterize the equilibrium partitioning of ...

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Warming Influences Mg2+ Content, While Warming and Acidification Influence Calcification and Test Strength of a Sea Urchin

17.10.2014 | Maria Byrne; Abigail M. Smith; Samantha West; Marie Collard; Philippe Dubois; Alexia Graba-landry; Symon A Dworjanyn, Environmental Science & Technology, 2014

We examined the long-term effects of near-future changes in temperature and acidification on skeletal mineralogy, thickness, and strength in the sea urchin Tripneustes gratilla reared in all combinations of three pH (pH 8.1, 7.8, 7.6) and three temperatures (22 °C, 25 °C, 28 °C) from the early ...

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Nitrite Reduction Mechanism on a Pd Surface

17.10.2014 | Hyeyoung Shin; Sungyoon Jung; Sungjun Bae; Woojin Lee; Hyungjun Kim, Environmental Science & Technology, 2014

Nitrate (NO3–) is one of the most harmful contaminants in the groundwater, and it causes various health problems. Bimetallic catalysts, usually palladium (Pd) coupled with secondary metallic catalyst, are found to properly treat nitrate-containing wastewaters; however, the selectivity toward N2 ...

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Sustainability, Vol. 6, Pages 7224-7241: Local Perceptions about the Effects of Jatropha (Jatropha curcas) and Castor (Ricinus communis) Plantations on Households in Ghana and Ethiopia

17.10.2014 | Timko, Joleen A.; Amsalu, Aklilu ; Acheampong, Emmanuel ; Teferi, Mesfin K., Sustainability, 2014

Biofuel plantations have been hyped as a means to reinvigorate Africa’s rural areas. Yet there is still apprehension about the negative environmental and social impacts of large-scale commercial biofuel production around rising food prices, land grabbing, ecological damage, and disruption of ...

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IJERPH, Vol. 11, Pages 10806-10823: Evaluation of Toxic Metals and Essential Elements in Children with Learning Disabilities from a Rural Area of Southern Brazil

17.10.2014 | Nascimento, Sabrina Nunes do; Charão, Mariele Feiffer; Moro, Angela Maria; Roehrs, Miguel ; Paniz, Clovis ; Baierle, ..., International Journal of Environmental Research and Public Health, 2014

Children’s exposure to metals can result in adverse effects such as cognitive function impairments. This study aimed to evaluate some toxic metals and levels of essential trace elements in blood, hair, and drinking water in children from a rural area of Southern Brazil. Cognitive ability and ...

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