Variability of BTEX in Residential Indoor Air of Kolkata Metropolitan City
IR@NEERI: National Environment Engineering Research Institute
View Archive Info| Field | Value | |
| Title |
Variability of BTEX in Residential Indoor Air of Kolkata Metropolitan City
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| Creator |
Majumdar, Dipanjali
Mukherjee, A K Mukhopadhaya, K Sen, S |
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| Subject |
Air Pollution
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| Description |
Mono-aromatic hydrocarbons, namely benzene,
toluene, ethylbenzene and isomers of xylene (BTEX)
were studied within a group of typical urban residences.
The average residential indoor levels of BTEX
were 42.0, 69.3, 22.8, 52.1 and 21.6 mg�m�3, respectively.
The indoor level was found to be significantly dependent
on the type of fuel used and extent of ventilation
but not on location of the residence or kitchen
placement inside the residence. The average indoor/
outdoor concentration ratio observed for BTEX 4 1;
and this indicates the presence of indoor sources for
these compounds along with infiltration of outdoor air.
The relative variability of the target compounds reveals
that indoor sources, other than domestic fuel, like
consumer products, cooking, etc., contribute significantly
for xylenes and least for benzene. Also with
increasing ventilation, the intrusion of outdoor air has
definite contribution in increasing the indoor level in descending order for benzene, toluene, m-, p-xylene
and ethylbenzene. For o-xylene, a removal effect was
observed with increasing rate of ventilation.
The human health risk estimation reveals that the
average integrated lifetime cancer risk considering the
exposure to benzene and ethylbenzene due to residing
for only 15 years in such indoor conditions is 2.9 E-�05,
which is sufficiently higher than the acceptable risk of
1.0 E�-06.
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| Publisher |
SAGE Publications
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| Date |
2012
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://neeri.csircentral.net/309/1/Kolkata_indoor.pdf
Majumdar, Dipanjali and Mukherjee, A K and Mukhopadhaya, K and Sen, S (2012) Variability of BTEX in Residential Indoor Air of Kolkata Metropolitan City. Indoor and Built Environment, 21 (3). pp. 374-380. ISSN 1420-326X |
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| Relation |
http://ibe.sagepub.com/content/21/3/374.abstract
http://neeri.csircentral.net/309/ |
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