Volatile organic compounds (VOCs) comprise a diverse array of carbon containing substances that exhibit a vapor pressure of ≥0.01 kPa at 20 °C, or equivalent volatility under the specific conditions in question1. While VOCs are commonly regarded as contaminants from industrialised sites, land...
In general, the abovementioned types of air contain VOCs, particulate matter, water, nitrogen, oxygen, carbon dioxide, and other inert gases. Among them, VOCs cover only a small fraction and their concentrations are low. Direct measurement by mass spectrometer (MS) or sensors is nowadays availab...
It is important to understand the interaction of exogenous compounds with the ecosystem, because only in this way can the potential human health effects of these compounds be predicted. This paper outlines the various parameters that must be considered when predicting the fate of a compound in the...
Distribution pattern of persistent organic pollutants in aquatic ecosystem at the Rosetta Nile branch estuary into the Mediterranean Sea, North of Delta, Egypt. Marine Pollution Bulletin, 131, 115–121. CAS Google Scholar Abd El-Hamid, H. T., Kacem, H. A., Keshta, A., & El-Alfy, M....
that the catalyst and cocatalyst are reacted at temperatures below −40°C, preferably at −78°C, and also that the polymerization is carried out at a low temperature. For catalyst activity either thevanadium compoundor theorganometallic compoundmust contain at least one halogen atom. Further...
Photochemical and biological degradation of dissolved organic carbon (DOC) and their interactions jointly contribute to the carbon dioxide released from surface waters in permafrost regions. However, the mechanisms that govern the coupled photochemical a
The cycling of especially large size organic nitrogen (N) from plants into stable microbial derived soil organic carbon (C) and N pools is understudied, in spite of organic N composing 90% of soil N and the intimate link between organic N and soil C stabilization. We investigated the fate ...
Selected ion flow tube massspectrometry (SIFT-MS) technology was used for the first time with both bacterial andfungal cultures growing on lignin as a sole carbon source. Methanol and other volatilecompounds were evaluated using this method and lignin-derived compounds wereidentified. Methanol ...
It was shown that acetate accumulates in these peats as well (Hines et al., 2001). 8.08.7.8.3 Carbonyl sulfide and carbon disulfide Bacteria are also involved in the formation and degradation of other volatile sulfur compounds such as carbonyl sulfide (OCS) and carbon disulfide (CS2). Much ...
camara also affects soil properties, increasing total carbon and phosphate concentrations and soil moisture [26,27]. The modification of the soil properties affects species composition and ecosystem structure and functions, resulting in alteration of food webs and the habitats of vertebrate and ...