CN 8 June 24, 2012
Title: The Feasibility of Lemongrass Essence as Air Freshener Background Information: Air fresheners are consumer products used in homes or commercial products used in restrooms that typically emit fragrance. Air fresheners introduce fragrance into the air of interior spaces either as droplets which transition to vapor or as the molecules of fragrance ingredients evaporating from a source. Fragrance diffuses into the air to mask other odors or to introduce a specific odor. Basic ingredients in air fresheners typically include formaldehyde, aerosol propellant, petroleum distillates, and p-dichlorobenzene. Air freshener preparations often also include terpenes such as limonene. Aldehydes, ketones, esters, alcohols and other synthetic fragrances are also used. A report issued in 2005 by the Bureau Européen des Unions de Consommateurs (BEUC) found that many air freshener products emit allergens and toxic air pollutants including benzene, formaldehyde, terpenes, styrene, phthalates, and toluene. Air fresheners may also contain phosphates, chlorine bleach, or ammonia. Research at the University of California found that the prominent products of the reaction of terpenes found in air fresheners with ozone included formaldehyde, hydroxyl radical and secondary organic aerosol. Many air fresheners employ carcinogens, volatile organic compounds and known toxins such as phthalate esters in their formulas. A Natural Resources Defense Council (NRDC) study of 13 common household air fresheners found that most of the surveyed products contain chemicals that can aggravate asthma and affect reproductive development. The NRDC called for more rigorous supervision of the manufacturers and their products, which are widely assumed to be safe. I chose to use the lemongrass...
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