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Organophosphate esters in dust samples collected from Danish homes and daycare centers

Författare och institution:
S. Langer (-); M. Fredricsson (-); C. J. Weschler (-); G. Beko (-); Bo Strandberg (Institutionen för medicin, avdelningen för samhällsmedicin och folkhälsa); M. Remberger (-); J. Toftum (-); G. Clausen (-)
Publicerad i:
Chemosphere, 154 s. 559-566
ISSN:
0045-6535
Publikationstyp:
Artikel, refereegranskad vetenskaplig
Publiceringsår:
2016
Språk:
engelska
Fulltextlänk:
Sammanfattning (abstract):
Organophosphates are used in a wide range of materials and consumer products and are ubiquitous in indoor environments. Certain organophosphates have been associated with various adverse health effects. The present paper reports mass fractions of organophosphates in dust samples collected from 500 bedrooms and 151 daycare centers of children living in Odense, Denmark. The identified compounds include: tris(isobutyl) phosphate (TIBP), tri-n-butyl phosphate (TNBP), tris(2-chloroethyl) phosphate (TCEP), tris(2-chloroisopropyl) phosphate (TCIPP), tris(1,3-dichloroisopropyl) phosphate (TDCIPP), tris(2-butoxyethyl) phosphate (TBOEP), triphenylphosphate (TPHP), 2-ethylhexyl-diphenyl phosphate (EHDPP), tris(2-ethylhexyl) phosphate (TEHP) and tris(methylphenyl) phosphate (TMPP). Both the number of organophosphates with median values above the limit of detection and the median values were higher for samples from daycare centers than for samples from homes. Organophosphates with median mass fractions above the limit of detection were: TCEP from homes (6.9 mu g g(-1)), and TCEP (16 mu g g(-1)), TCIPP (5.6 mu g g(-1)), TDCIPP (7.1 mu g g(-1)), TBOEP (26 mu g g(-1)), TPHP (2.0 mu g g(-1)) and EHDPP (2.1 mu g g(-1)) from daycare centers. When present, TBOEP was typically the most abundant of the identified OPs. The sum of the organophosphate dust mass fractions measured in this study was roughly in the mid-range of summed mass fractions reported for dust samples collected in other countries. On a global scale, the geographical distribution of organophosphates in indoor dust is quite variable, with higher concentrations in industrialized countries. This trend differs from that for phthalate esters, whose geographic distribution is more homogeneous. Exposure to organophosphates via dust ingestion is relatively low, although there is considerable uncertainly in this assessment. (C) 2016 Elsevier Ltd. All rights reserved.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
NATURVETENSKAP ->
Geovetenskap och miljövetenskap ->
Miljövetenskap
NATURVETENSKAP ->
Biologiska vetenskaper ->
Ekologi
Nyckelord:
Exposure, Flame retardants, Indoor environment, Plasticizers, SVOC, semivolatile organic-compounds, in-house dust, flame retardants, human, exposure, indoor dust, settled dust, phthalate-esters, gas-phase, environments, air, Environmental Sciences & Ecology
Postens nummer:
238213
Posten skapad:
2016-06-23 14:08
Posten ändrad:
2016-06-23 15:01

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