Soil Generic Assessment Criteria for Human Health Risk ... - ESdat

1,3,5-Trimethylbenzene CAS 108-67-8 Assessor A: Gareth Wills Assessor B: Mat Rouge Final Review: Panel/SF
Date 08/04/2009 Date 15/04/2009 Date 28/08/2009
MDI
www.esdat.net Esdat Environmental Database Management Software +61 2 8875 7948
Recommended
MDIoral
Units
8 ug day-1
Organisation Date Media Value Units Description Reference Web link
Other - National Tap Water
tap water
max concentration in
National Tap Water Quality Database
http://www.ewg.org/tapwater/contaminants/contaminant.phpcontamcode=2424
Quality Database
tap water 4ppb
8 ug/d
(assuming
2litres of
water/d)
Justification: Only literature value obtained. Conservative, based on max recorded concentration in tap water (US National Tap
Water Quality Database). Converted assuming 2L/day water consumed
value taken from highest recorded concentration in tap
water, US. Converted to daily intake assuming 2 litres of
water consumed per day.
Justification: only literature value obtained (TOXNET)
MDI Recommended MDIinh Units
20.5 ug day-1
Organisation Date Media Value Units Description Reference Web link
Toxicological Data Network
(TOXNET)
1985 Ambient Air 20.5 ug day-1
The average daily dose of 1,3,5-trimethylbenzene from
breathing air in The Netherlands was estimated as 20.5
ug/day based on mean ambient air concentrations of
0.10-0.30 ppb ( conversion not detailed within Toxnet -
but is assumed to be approximately 0.3e-9 x 1 atm x
120.19 g.mol-1 x 15 m3.d-1 x 1e6 ug.g-1 / ( 8.206e-5
atm.m3.mol-1.K-1 x 288 K)
Guicherit R, Schulting FL; Sci Total Environ 43: 193-219 (1985)
http://toxnet.nlm.nih.gov/
(Page 1 of 1) (EIC proforma 1,3,5-trimethylbenzene.xls 28/08/2009)