Trimellitate Category; Revised Summaries - US Environmental ...

3319311S~AP910.doc
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The Mackay level IIJ fugacity Model was employed to eslimare rhe environmenlal diW&uljOn of TO-J’Jq
ia air, Water, soil and sedimenL If released to air, TOTM will exisL soicll; in the parlkulart phase in the
ambient atmosphere. If released to soi1, TOTM is not exper%A to have mobility. Ii released into v~a~er,
TOTM is expected tn adsorb IO suspcndtd solids and sediment in WIW.
TOT&l has to be consjdered as weakly toxic against aquatic organisms. The subslance is no1 readily
biodegradable. Measured BCF of this chemical is reported as less than 1 lo 2.7 in carp fbr 6 we&s, which
suggest thal biocuxxntralian in aquatic Organisms is much lower than the value estimated from
logPavu(=S.94). The Ioxicily data to aquatic plants (al~ac; S&nasrrwn wpricornww~) was >I00 nlg!‘L.
for EI&, (7311) and NOEC (7Zhr) The acute toxicity dah in fish (jntnedaka: Ory2ios hripes) were z-100
mg/L (96l1, LC, ;and NOEC) and >7S mglL (14d, LC, and NOEC). Jn Dayhnirz magrra, acute mxicity
was ~18OrrtgL (48hr: E&) and chronic loxichy was 55.6mg/l, {21d, reproduction NOEC). All rhese
dara were obtained in superssttvat& solution with the aid ofMubilizer (HCO-40). The test solution was
considered to be homogenmus substantially. Another chronic toxicity data il8u~M~ vwgna (NDEC
>U.N?2m~L) was reported Though this value is lowa rhan the saturation point, fbe c$~ser~ed
cowxma~icm data was less reliable. Assessment factor af lObas czl~~ea to detctminelhe lowest PNEC.
Thus, calculated PNEC (=O.OOOSZ mg,L) of TOTM is closely IQ Ihe value of one hundredths (xsassment
factor) of sahratjon print. From these toxicity data, it is difficult to decide the exact PNEC, but we are
sure of the practical salety of TOTM against aquaric organisms.
TCN’M js manufactured as tile plasticizer of PVC applications.
The production volume (7f TOTM in Japan is apI]roximaleIy 20,000 ionncs&~.~c and also, there are 5
manufacturers in Japan. E&mated global production is40,W&lCQQ0Cl Lon~eSlyear. This substance is
producr=d in closed system and mainly uwi asplasticizer for PVC elecSrica1 cabIt and wire. And so, this
substance has heen alresdy blended to the compound aplasticizer, so it is not cqxcted lhat downslream
used or ccttiumtrs of electric tire industry may expose tol this substance.
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1 Occupationa exposure may occllx thmugh dennai txntact and inhaiatlan of mist, The process is
, constructed by closed system and workers wear proiective ~IOWS and goggles during the uperstinn, so
significant exposure is not txpected.
NATURE OF FURTHER WORK RECOMMENDED
No recommendation
ExCH’MANUAL’196-4-2.Domay 1996
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