Category:Indoor air pollutants - Revision history

ANT at 12:19, 8 August 2023

2023-08-08T12:19:31Z

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	According to World Health Organization: The limit value for O3 is 100 μg/m3 for 8 hours average.		According to World Health Organization: The limit value for O3 is 100 μg/m3 for 8 hours average.
	According to DIRECTIVE 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe: The limit value for O3 is 120 μg/m3 for 8 hours average.		According to DIRECTIVE 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe: The limit value for O3 is 120 μg/m3 for 8 hours average.
			[[Category: Indoor air pollutants]]

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	~~[[Subcategory: Trichloroethylene]]~~
	~~[[Category: Indoor air pollutants]]~~

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	[[Subcategory: Trichloroethylene]]		[[Subcategory: Trichloroethylene]]
			[[Category: Indoor air pollutants]]

2023-07-27T08:17:35Z

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		[[Subcategory: Trichloroethylene]]

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	~~'''Definition'''~~

	~~Trichloroethylene (TCE) is a widely used industrial solvent. It is a volatile, colourless liquid with a sweet odour (similar to chloroform).~~
	It is mainly used for steam degreasing and cold cleaning of manufactured metal parts (80-95% of consumption). Other applications include industrial dry cleaning, printing, printing ink production, extraction processes, paint production and textile printing.

	~~'''Predominant sources of emissions'''~~

	Contaminated water can be a source of indoor exposure because it can volatilise rapidly from surface water through showering or the use of washing machines and dishwashers, for example. Contaminated soil can also contribute to TCE concentrations in ambient air through vapour intrusion (when TCE in soil gas enters dwellings through cracks in foundations). Dermal exposure can contribute to total exposure, especially through the use of detergent products or showering. In addition, the use of products where TCE is used as a solvent can led to high concentrations in indoor air.

	~~'''Legislation and intervals'''~~

	~~According to the World Health Organization, since there is sufficient evidence that TCE is a genotoxic carcinogen, all indoor exposures are considered relevant and no threshold can be determined.~~
	~~[[Category: Indoor air pollutants]]~~

2023-07-27T08:14:02Z

← Older revision	Revision as of 08:14, 27 July 2023
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		'''Definition'''

		Trichloroethylene (TCE) is a widely used industrial solvent. It is a volatile, colourless liquid with a sweet odour (similar to chloroform).
		It is mainly used for steam degreasing and cold cleaning of manufactured metal parts (80-95% of consumption). Other applications include industrial dry cleaning, printing, printing ink production, extraction processes, paint production and textile printing.

		'''Predominant sources of emissions'''

		Contaminated water can be a source of indoor exposure because it can volatilise rapidly from surface water through showering or the use of washing machines and dishwashers, for example. Contaminated soil can also contribute to TCE concentrations in ambient air through vapour intrusion (when TCE in soil gas enters dwellings through cracks in foundations). Dermal exposure can contribute to total exposure, especially through the use of detergent products or showering. In addition, the use of products where TCE is used as a solvent can led to high concentrations in indoor air.

		'''Legislation and intervals'''

		According to the World Health Organization, since there is sufficient evidence that TCE is a genotoxic carcinogen, all indoor exposures are considered relevant and no threshold can be determined.
		[[Category: Indoor air pollutants]]

2023-07-26T14:02:08Z

Benzene

← Older revision		Revision as of 14:02, 26 July 2023
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	~~== '''Benzene''' ==~~
	~~'''Definition'''~~

	~~Benzene (C6H6) is a colourless, liquid aromatic hydrocarbon. It evaporates very easily, emitting toxic and flammable vapours.~~

	~~'''Predominant sources of emissions'''~~

	Benzene in indoor air can come from outdoor air and also from indoor sources such as building materials and furniture, attached garages, heating and cooking systems, stored solvents and various human activities. Indoor concentrations are also affected by climatic conditions and the rate of air exchange due to forced or natural ventilation.

	~~'''Legislation and intervals'''~~

	~~According to the World Health Organization there is no safe exposure value that can be recommended, so it is advisable to reduce indoor exposure levels as much as possible.~~
	According to DIRECTIVE 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe: The upper assessment threshold for Benzene is 70% of the limit value (3.5 µg/m3) on an annual average. Meanwhile, the lower assessment threshold is 40% of the limit value (2 µg/m3) for Benzene.

	~~{{DEFAULTSORT:Benzene}}~~