Sentences with phrase «of volatile organic chemicals»

Question: Could you discuss the issues and health risks related to «vapor intrusion» of volatile organic chemicals into buildings from contaminated sites?

The model showed that the dispersant injection decreased the overall concentration of all volatile organic chemicals in the atmosphere by a modest amount (about 30 percent).

The study model showed that the dispersant injection decreased the overall concentration of all volatile organic chemicals in the atmosphere by a modest amount (about 30 percent).

Not exact matches

Soy oil is generally separated from flaked soybeans — leaving defatted meal that's ground into flour — using a chemical called hexane, one of the volatile organic compounds that constitutes natural gas, crude oil and gasoline.

A study published in the Archives of Environmental Health in 1999, found that disposable diapers release chemicals called volatile organic compounds (VOCs), including toluene, ethylbenzene, xylene and dipentene.

Researchers tested the the foam padding in crib mattresses, and found they release significant amounts of volatile organic compounds (VOCs), potentially harmful chemicals also found in household items such as cleaners and scented sprays.

Harmful gaseous pollutants in the form of volatile organic compounds are often released into the air when chemicals are used, for example in cleaning products.

In a new study published in the Proceedings of the National Academy of Sciences (PNAS), researchers from Innsbruck, Austria, present the world's first chemical fingerprint of urban emission sources of volatile organic compounds (VOCs).

Like vehicles and power plants, trees emit airborne chemicals called volatile organic compounds (VOCs), which in the presence of sunlight react with nitrogen oxides in vehicle fumes to form ozone, one of the components in smog that makes it a health threat.

As crude oil burns it releases many toxic chemicals, including lead, carbon monoxide, polycyclic aromatic hydrocarbons and volatile organic compounds, says Bin Jalaludin at the University of New South Wales in Australia.

Dirty laundry smells bad because of certain chemicals called volatile organic compounds, which can't always be washed out on an eco-friendly 20 ˚C cycle, according to a new study in the Journal of Chromatography A.

The samples revealed that the ratios among certain «volatile organic compounds» (chemicals that can be a source of scents and odors) in the atmosphere increase or decrease along specific directions.

The sensor works by measuring levels of chemicals called volatile organic compounds present in exhaled breath.

Georgia Tech researchers have developed electrochromic film inks that are water - based, making them safer for diffuse application in settings where the kinds of safety precautions and protective equipment that are standard in handling volatile organic chemicals would be impractical.

New volatile organic compounds used in construction and industry have now been recognised, along with other agents, such as sulphites, chlorates, isocyanates and many other chemicals already known to be potentially toxic, as causes of chronic asthma.

On top of that, new carpets can also off - gas toxic chemicals called volatile organic compounds (VOCs) when you first bring them into your home.

The eco-INSTITUT evaluates the latex for an extensive list of chemicals including: formaldehyde, VOCS (volatile organic compounds), heavy metals, pesticides, phthalates, and other potentially harmful chemicals.

Brita water filters can address the cause of bad tastes and odors, such as chlorine, and can also substantially reduce many hazardous contaminants (including heavy metals such as copper, lead and mercury), disinfection byproducts, parasites (such as Giardia and Cryptosporidium), pesticides, radon and volatile organic chemicals (such as methyl - tert - butyl ether (MTBE), dichlorobenzene and trichloroethylene (TCE)-RRB-.

It means they're scientifically tested to meet some of the world's most rigorous emissions standards for chemical exposure and pollutants, such as volatile organic compounds (VOCs), formaldehyde and phthalates.

«My instinct is that it only makes sense to prevent children's exposure to chemicals known to affect the nervous system, and those include pesticides, solvents, many volatile organic compounds, metals, PCBs, and thousands of other poorly tested synthetic chemicals now in commerce.

Furniture (especially particle board), carpeting, and paint are common sources of volatile organic compounds (VOCs), a family of chemicals that are frequently «offgassed.»

Even some traditional cleaning chemicals are high in volatile organic compounds (VOCs) which, when evaporated in the confines of the nacelle or hub, can cause respiratory irritation and trigger asthmatic attacks.

As if sweltering heat weren't bad enough, Europeans also suffered through a higher - than - normal number of days with dangerous smog levels that year.6 Smog — with ground - level ozone as the main component — forms when sunlight reacts with chemicals such as volatile organic compounds, carbon monoxide, nitrogen oxides, and water vapor.

Fossil Fuel is a generic term that isn't quite correct Natural Gasoline is a distilled derivative of oil but almost all ofit is manufactured from cracked and recombined oil derivativeswhile natural gasoline is further refined intoPropane, butane, Proproline (a plastics feed stock), and Natural gasand also separates out sulfur (for fertilizer and explosives) Gasoline can be made from coal («Coaline») or from organic matter («Bio-fuel») but uses a few of oil based feed stocks instead tomake «Sythiline» (artificial gasoline) This gasoline is actually cleaner burning then natural gas with allit's «flare offs» (butane, propane, propoline, sulfur) used in theearly 19th century because it is manufactured only with essentialHydrocarbons Diesel fuel is also becoming more and more Manufactured instead ofdistilled as demand for it rises but improvements in Hydro cleaningis allowing for diesel with no volatile chemicals like sulfur andmercury (taken out for petro - chemical feedstock to make fertilizerand thermometers) In both cases what you have is pure hydro - carbons, a carbon atomwith hydrogen atoms attached to it In the case of gasoline there is CH1, cH7, CH11 When in a combustion engine the gasoline is sprayed into the pistonafter being mixed with air and the drive of the engine compressesthe the chamber filled with the gasoline mist until it's full downstoke then the spark plug causes the Exothermic reaction... which isthe conversion of the potential energy in the gasoline mist to heatand force, with the force side of that equation shooting the pistonupward and the top of the stroke kicking what's left of thecaramelized gasoline mist out into the Emission control box If the Emulsion control box wasn't there to filter out the burntgasoline particles, any potential additives and volatile chemicalsthen the caramelized gunk hitting air would create CARBON MONOXIDEin the cooler then the heat of the engine difference CARBON MONOXIDE can also become a problem if the Emissions controlBox filter, air filters or muffler filters is worn or damaged.

Ozone is an odorless gas that is not directly emitted into the air but is created by chemical reactions between nitrogen oxides (NOx) and volatile organic compounds (VOC)-- which occur naturally but are also produced from the burning of fossil fuels and are released in the process of drilling for oil and natural gas.

Built into each i - BLADES Smartcase is an «EnviroSensor» that uses a Bosch BME 680 chemical gas sensor as its «nose» and allows for «fast and accurate» measuring of levels of volatile organic compounds (VOCs), temperature, humidity, and air pressure, which are displayed through an accompanying app.

An EPA study of chemicals in septic tanks found toluene, methylene chloride, benzene, chloroform, and other volatile synthetic organic compounds related to home chemical use, many of them cancer - causing.

For example, early global chemical modelling results argued that global tropospheric ozone, a greenhouse gas, was controlled by emissions of the highly reactive gases nitrogen oxides (NOx), carbon monoxide (CO) and non-methane hydrocarbons (NMHC, also known as volatile organic compounds, VOC).

In addition to methane emissions, natural gas sector operations and infrastructure represent a significant source of CO2; volatile organic compounds (VOCs), which are chemicals that contribute to ground - level ozone and smog; and hazardous air pollutants (HAPs).

• Withstands heat, cold and wet and dry conditions • Warrantied against chipping, peeling, fading or stains • Dries twice as hard as other epoxy floor coatings • Resistant to chemicals and food and drink spills; wipes up clean with a cloth, towel or damp mop • No strong cleaners; periodically deep clean with a mild, neutral cleanser like Simple Green • Free of volatile organic compounds (VOC), creating a safe environment • Reduces the buildup of allergens, dust and dirt that can cling to other flooring materials • No need to replace every few years, an occasional resealing will keep your floors like new Childcare centers and schools can provide more allergen - free spaces for children with easy - care, PremierOne Solids floor coatings.

• Rated by the Forest Stewardship Council (FSC) or Programme for the Endorsement of ForestCertification (PEFC) schemes • Made from a sustainable source or material • Uses organic materials • Produced with chemical - free dyes • Recycled or upcycled — old items repaired with new paint and fittings • Low carbon footprint and road miles • Low VOCs (volatile organic compounds) • Low chemical content or solvent - free • Fairtrade • Energy saving • Hand made