New buildings experience particularly high levels of VOC off-gassing indoors because of the abundant new materials (building materials, fittings, surface coverings and treatments such as glues, paints and sealants) exposed to the indoor air, emitting multiple VOC gases. [34] This off-gassing has a multi-exponential decay trend that is discernible over at least two years, with the most volatile compounds decaying with a time-constant of a few days, and the least volatile compounds decaying with a time-constant of a few years. [35] Baldwin, I. T.; Halitschke, R.; Paschold, A.; von Dahl, C. C.; Preston, C. A. (2006). "Volatile Signaling in Plant-Plant Interactions: "Talking Trees" in the Genomics Era". Science. 311 (5762): 812–815. Bibcode: 2006Sci...311..812B. doi: 10.1126/science.1118446. PMID 16469918. S2CID 9260593. Bönisch, Ulrike; Böhme, Alexander; Kohajda, Tibor; Mögel, Iljana; Schütze, Nicole; von Bergen, Martin; Simon, Jan C.; Lehmann, Irina; Polte, Tobias (2012-07-03). Idzko, Marco (ed.). "Volatile Organic Compounds Enhance Allergic Airway Inflammation in an Experimental Mouse Model". PLOS ONE. 7 (7): e39817. Bibcode: 2012PLoSO...739817B. doi: 10.1371/journal.pone.0039817. ISSN 1932-6203. PMC 3389035. PMID 22802943. Mendell, M. J. (2007). "Indoor residential chemical emissions as risk factors for respiratory and allergic effects in children: A review". Indoor Air. 17 (4): 259–77. doi: 10.1111/j.1600-0668.2007.00478.x. PMID 17661923. Wolkoff, P.; Wilkins, C. K.; Clausen, P. A.; Nielsen, G. D. (2006). "Organic compounds in office environments – sensory irritation, odor, measurements and the role of reactive chemistry". Indoor Air. 16 (1): 7–19. doi: 10.1111/j.1600-0668.2005.00393.x. PMID 16420493.

Fossil fuel use and production, e.g. incompletely combusted fossil fuels or unintended evaporation of fuels. The most prevalent VOC is ethane, a relatively inert compound.A character in the scene recalls a speech he heard earlier in the screenplay, such as his mother reminding him to wear a coat. The speech is the mother's, but she is not there at the scene location. Thus, her speech originates from another location, and so it's marked V.O. Levels 1 & 2 can only hit one enemy, making Voca struggle against crowds. They also do not have much Range. Before the Dutch Revolt, which started in 1566/68, the Flemish city of Antwerp had played an important role as a distribution center in northern Europe. After 1591, the Portuguese used an international syndicate of the German Fugger family and Welser family, as well as Spanish and Italian firms, which operated out of Hamburg as the northern staple port to distribute their goods, thereby cutting Dutch merchants out of the trade. At the same time, the Portuguese trade system was unable to increase supply to satisfy growing demand, in particular the demand for pepper. Demand for spices was relatively inelastic; therefore, each lag in the supply of pepper caused a sharp rise in pepper prices. Rolando said: “The push for inclusive education came from young people themselves. They were being denied their rights and we wanted to support them… We had no money but we made use of everything we could.” EPA,OAR,ORIA,IED, US (18 August 2014). "Technical Overview of Volatile Organic Compounds | US EPA". US EPA . Retrieved 2018-04-23. {{ cite web}}: CS1 maint: multiple names: authors list ( link)

A voice originates from outside the scene location through a phone or walkie-talkie or radio or some other device. a b Buszewski, B. A.; etal. (2007). "Human exhaled air analytics: Biomarkers of diseases". Biomedical Chromatography. 21 (6): 553–566. doi: 10.1002/bmc.835. PMID 17431933. Lee, Hana; Shin, Jung Jin; Bae, Hyun Cheol; Ryu, Woo-In; Son, Sang Wook (January 2017). "Toluene downregulates filaggrin expression via the extracellular signal-regulated kinase and signal transducer and activator of transcription-dependent pathways". Journal of Allergy and Clinical Immunology. 139 (1): 355–358.e5. doi: 10.1016/j.jaci.2016.06.036. PMID 27498358. Benjamin Moore Eco Spec: This Benjamin Moore paint is their “greenest” interior premium acrylic paint that comes in a flat, eggshell, and semi-gloss finish and all colors, using their Gennex zero-VOC colorant system. Salathiel said: “Like some of my friends, I had just lost both my parents during the civil war and I could not afford to pay for school materials and fees. I was suspended from class, with the worry that failure to pay fees for the trimester would result in expulsion.”Player B is a young person playing Word A Round (a game for ages 10 and up) and they’re trying to be the first to unravel the following scrambled letters around the game card ─ LANIMA (6-letter word), ULHELPF (7-letter word) and RELSQUIR (8-letter word). In 1620, diplomatic agreements in Europe ushered in a period of co-operation between the Dutch and the English over the spice trade. [30] This ended with a notorious but disputed incident known as the ' Amboyna massacre', where ten Englishmen were arrested, tried and beheaded for conspiracy against the Dutch government. [33] Although this caused outrage in Europe and a diplomatic crisis, the English quietly withdrew from most of their Indonesian activities (except trading in Banten) and focused on other Asian interests. In most countries, a separate definition of VOCs is used with regard to indoor air quality that comprises each organic chemical compound that can be measured as follows: adsorption from air on Tenax TA, thermal desorption, gas chromatographic separation over a 100% nonpolar column ( dimethylpolysiloxane). VOC (volatile organic compounds) are all compounds that appear in the gas chromatogram between and including n-hexane and n-hexadecane. Compounds appearing earlier are called VVOC (very volatile organic compounds); compounds appearing later are called SVOC (semi-volatile organic compounds). The story of the VOC is complicated, and this is not an exhaustive history of it (if you want that, there are plenty of books to choose from). This article offers a primer on the VOC: a less-than-casual introduction. Enjoy! How did the VOC begin? One of the most well-known harmful VOCs is benzene, a known carcinogen, that is emitted by cigarette smoke, fuels, paints and cars. Sometimes VOCs, such as benzene, emit odors, but smell is not always a good indicator of the chemical's potential health risk, according to the Minnesota Department of Health.

ISO 16000-9:2006 Indoor air – Part 9: Determination of the emission of volatile organic compounds from building products and furnishing – Emission test chamber method". Iso.org . Retrieved 24 April 2018. Anthropogenic sources emit about 142 teragrams (1.42×10 11 kg) of carbon per year in the form of VOCs. [29]Pichersky, Eran; Gershenzon, Jonathan (2002). "The formation and function of plant volatiles: Perfumes for pollinator attraction and defense". Current Opinion in Plant Biology. 5 (3): 237–243. doi: 10.1016/S1369-5266(02)00251-0. PMID 11960742. Let’s take a deep dive into the world of the VOC. For over 200 years, the VOC brought the Netherlands international power and wealth while exploiting local populations, creating colonies, and trading in human beings. Symptoms of high, short-term exposure to VOCs include eye, nose and throat irritation, headaches, nausea or vomiting, dizziness or worsening asthma symptoms. Exposure to VOCs for many years at high or even low levels can lead to cancer, liver and kidney damage or nervous system damage, according to the Minnesota Department of Health.

Kessler, A.; Baldwin, I. T. (2001). "Defensive Function of Herbivore-Induced Plant Volatile Emissions in Nature". Science. 291 (5511): 2141–2144. Bibcode: 2001Sci...291.2141K. doi: 10.1126/science.291.5511.2141. PMID 11251117.Volatile Organic Compounds (VOCs) in Your Home – EH: Minnesota Department of Health". Health.state.mn.us . Retrieved 2018-01-23. He took action, helping to set up clubs for orphans across the country and going on radio to explain the problem. The education minister supported their cause and orphans were soon allowed to go to school for free. Complexity could be found around online teaching. The online classroom is very different to face-to-face interactions. Staff are managing lower student engagement, issues with technology, different time zones and the list goes on! Biasioli, Franco; Yeretzian, Chahan; Märk, Tilmann D.; Dewulf, Jeroen; Van Langenhove, Herman (2011). "Direct-injection mass spectrometry adds the time dimension to (B)VOC analysis". Trends in Analytical Chemistry. 30 (7): 1003–1017. doi: 10.1016/j.trac.2011.04.005. Buttons: Many VOCA electronic communication aids have symbols on buttons which are pressed to generate speech output. Some models may only have a few messages such as greetings and common phrases, while others can store hundreds of words. Although these sorts of VOCA’s often come with the icons pre-loaded, generally the user can add further sets of icons, personal images and even photos. Examples include the GoTalk devices by liberator.