Search results for " Monitoring"
showing 10 items of 3129 documents
New Challenges for Sustainable Organizations in Light of Agenda 2030 for Sustainability
2021
Sustainability is one of humanity’s most daunting issues at present. Increasing popula- tion, escalation of anthropogenic activities, industrialization, modern agricultural practices that pollute water, air, and soil around the world, and ever-increasing greenhouse gas emissions mean that sustainability is now in doubt [1]. In response to these critical concerns, the world has come up with several initiatives including Agenda 2030. Agenda 2030 is a commitment to eradicate poverty and achieve sustainable development worldwide, ensuring that no one is left behind by 2030. Its adoption was a landmark achievement, providing a shared vision towards sustainable development for all. Its 17 Sustain…
Reply to Castellano and David: Long-term fate of nitrate fertilizer and nitrate from agricultural catchments
2014
We thank Castellano and David for their insightful comments (1) on our paper (2), in which they point out that short-term changes in land use and agricultural management can lead to rapid reductions in nitrate leaching from agricultural systems. We fully agree with Castellano and David that in diversified cropping systems, this N distribution may be different, potentially resulting in reduced nitrate leaching.
Corrigendum to “Conservation value of forest plantations for bird communities in western Kenya” [Forest Ecol. Manag. 255 (2008) 3885–3892]
2009
A re-analysis of the bird data revealed a mistake within the database query. Only bird individuals that were heard were integrated in the results leading to lower total richness and number of individuals. In total 115 species and 13,331 individuals were detected of which 41 were forest specialists (43% of all individuals), 40 forest generalists (41%) and 34 forest visitors (16%). The statistical analyses remain very similar. We recorded significant differences in mean bird species richness, number of individuals and relative species richness among the five forest types (Table 1). Multiple pairwise comparisons showed significantly higher numbers of species in natural forest, mixed indigenous…
Researches Regarding the Species Diabrotica Virgifera Virgifera Le Conte in Sibiu County
2010
From the very beginning of the recording of its appearance in Europe as well as in
 our country the published material emphasized the harmful potential of the pest Diabrotica virgifera
 virgifera also drawing the attention to the scientific world and to the farmers as well upon this factor
 of reduction of the production of corn.
 In Sibiu County this species was first recorded in 2001, coming from West, at the border with
 Alba County. The first gatherings were done in Miercurea Sibiului. The investigation was done during
 2001–2009 concerning in: monitoring the adults and the larvae, the identification of the attacked
 plants, the way of harming both for…
Studies on Using Sugar Beet for Bio-Ethanol for Vehicle Motors
2011
The paper presents some researches on using sugar beet for producing bio-ethanol, considering the advantages which this raw material presents compared to other materials from which bio-ethanol can be obtained. One of the reasons of using bio-ethanol for motors as a fuel is the goal to reduce of 20% of greenhouse gases and it is established that the emissions of CO2 are much reduced in the case of bio-ethanol than that of conventional fuels.
Enantioselective transformation of fluoxetine in water and its ecotoxicological relevance
2017
European legislation focusing on water quality is expected to broaden to encompass several pharmaceuticals as priority hazardous substances. This manuscript aims to challenge current regulatory approaches that do not recognize stereochemistry of chiral pharmaceuticals by testing the hypothesis that environmental transformation and effects of chiral pharmaceuticals are stereoselective. Our experiments revealed that, while degradation of chiral fluoxetine (FL) in river water occurs via non-enantioselective photochemical and mildly-enantioselective microbial processes favoring the (R)-enantiomer, a pronounced enantioselectivity favoring (S)-FL (leading to the formation of (S)-NFL (norfluoxetin…
[Legionella spp. contamination in indoor air: preliminary results of an Italian multicenter study].
2014
Obiettivo. Rilevare la presenza di Legionella spp. nell’aria attraverso un protocollo standardizzato, a fianco dei tradizionali metodi impiegati per la rete idrica. Disegno. In dieci strutture sanitarie è stato selezionato un bagno, la cui acqua presentava una contaminazione da Legionella >1.000 unità formanti colonie (ufc)/litro. La contaminazione dell’aria è stata valutata tramite campionamento attivo (Surface Air System, SAS) e passivo, impiegando piastre di sedimentazione per la valutazione dell’Indice Microbico Aria (Index of Microbial Air, IMA). I campionamenti sono stati effettuati per 8 ore consecutive, a circa 1 m dal pavimento e a 50 cm dal rubinetto. Con il campionamento attivo, …
Practical strategies for stable operation of HFF-QCM in continuous air flow
2013
Currently there are a few fields of application using quartz crystal microbalances (QCM). Because of environmental conditions and insufficient resolution of the microbalance, chemical sensing of volatile organic compounds in an open system was as yet not possible. In this study we present strategies on how to use 195 MHz fundamental quartz resonators for a mobile sensor platform to detect airborne analytes. Commonly the use of devices with a resonant frequency of about 10 MHz is standard. By increasing the frequency to 195 MHz the frequency shift increases by a factor of almost 400. Unfortunately, such kinds of quartz crystals tend to exhibit some challenges to obtain a reasonable signal-to…
Current air quality analytics and monitoring: a review.
2014
This review summarizes the different tools and concepts that are commonly applied in air quality monitoring. The monitoring of atmosphere is extremely important as the air quality is an important problem for large communities. Main requirements for analytical devices used for monitoring include a long period of autonomic operation and portability. These instruments, however, are often characterized by poor analytical performance. Monitoring networks are the most common tools used for monitoring, so large-scale monitoring programmes are summarized here. Biomonitoring, as a cheap and convenient alternative to traditional sample collection, is becoming more and more popular, although its main …
Sampling and analysis of pesticides in ambient air.
2008
Developments in the sampling and determination of pesticides in ambient air have been discussed and data on the occurrence of pesticides in atmosphere have been presented. Developments in active sampling methods were reviewed and the different materials used for trapping pesticides from gas and particulate phases were discussed. Likewise, the use and developments of passive air samplers were reviewed. This article pays special attention to the analysis of pesticides trapped from ambient air, and recapitulate the procedures for extraction, clean-up and determination of these substances. Improvements in sampling procedures, analytical methods and monitoring activities are necessary to advance…