- Petroleum Volatile Organic Carbons
Contamination levels and potential sources of organic pollution in an Asian river
The Houjing River has long been an environmental victim of economic development. Industries that have settled along the bank of this river may have largely contributed to severe organic wastes pollution. This study collected water and sediment samples at various points along the river and measured concentrations of 61 volatile organic compounds (VOCs) and 128 semi-volatile organic compounds (SVOCs) for a period of 16 months (Feb 2014–June 2015). Our analyses show that elevated levels of VOCs were observed near...
Odorous volatile organic compound (VOC) emissions from ageing anaerobically stabilised biosolids
Opportunities for the beneficial re-use of biosolids are limited by nuisance odour emissions. Volatile organic compounds (VOCs) from anaerobically stabilised biosolids were measured to identify compounds that could contribute to the overall odour character of nuisance emissions. Flux hood sampling and chemical analysis were used to identify VOCs emitted from biosolids as they were stored in ambient conditions. Compounds emitted varied as the biosolid cakes were stored for a period of 50 days. VOCs detected in the...
Fast analysis of semi-volatile organic compounds using PTV-GC–TOF MS
The evaluation of semi-volatile organic compounds (SVOCs) in environmental matrices poses many challenges for the analyst, not least the vast number that may be encountered in any given analysis. In addition, analyte reactivity and the potential for multiple analytes to co-elute makes achieving the required method detection limits (LODs or MDLs) quickly and cost-effectively a formidable task – which is especially the case when using quadrupole mass spectrometry in ‘scan’ mode. One approach to...
What is a Volatile Organic Compound (VOC)?
What is a Volatile Organic Compound (VOC)? Our products are known for monitoring many different gases, but if you look closely at the description of some of them, you will see that it mentions the acronym VOC. For those that don’t know what VOC means, it stands for volatile organic compound, and there are thousands of different ones produced and used in our daily lives. To help shed some light on VOCs, this post has been created to provide information on what they are and how they can affect you.
On the ionization of air for removal of noxious effluvia” (Air ionization of indoor environments ...
AbstractRecent developments in the application of controllable air ionization processes that apply dielectric-barrier discharge devices to generate nonthermal plasmas have led to applications for chemical and biological decontamination in indoor air environments. These include significant reductions in airborne microbials, neutralization of odors, and reductions of specific volatile organic compounds (VOCs). Removal of veiy fine particulates (PMX) is also is enhanced by air ionization. The process of air ionization...