Document q301exvqO2eNK3L7VxQxyqgOM

/ eA**" /' f F. 1. HAJttXSOIf F. a r. mftmway 8. I* JUuterton - tarUB^M W. 0* trwi Ir. - Bwtlan-- 0. A* Z^xt, |r, - Knpleye# Iclitiwa Dopt., MMk*U tab VUlfl|tn, BflaaiM liftiiltr 17, 1971 WMW.,lSlt - IMMWff W '.Jit . hof ftwr IMtir of Hy^miMr l, 1971 Tho t^nMBtntlM of aolld port leloo lb$ m bo inhaled deria* nay oproyin# operation i art by too Awrlsm Conforoao# of dortniWBtfcl n* Intfuetrlel Hygleniete at 10 meA&, fait Threshold Halt Value repweaente th lfl at which #inert* jwrtiilaa can bo aafiiy inhaled itirlm a *0 hoar work aaik without aaaalnc health problaaa. Of oourao, wfcan toxic attirlali at# pnwmt, this liait ia lawir* for aaroury, tho ibmtoll JUiwit Value la 0,1 aK^< Slaw tho mmxlmom aereury content of tho cwuleism coating:* under eeaaideretiea la 0.1*d baooi oa wlida, la no oaa* will Uml antway tfcroofceld bo exceeded, provided tho liait of 10 agAP of partlowlatoa la not* Jho leed, tho DotahaM Liait Value la 0.15 ft* aaalaw aonoontration of lead la LuoIta* |w m an# ktU faint** *ai Leoita* txtorlor nni Interior Vrla Xaowole 1* 0.650. Again, tho laai liait will at bo oaoeeded ** loot no tho Unit of 10 asAP for partieclatee la ml. fha ^9^1 prlwor Woo* contain S.80 lead baaed an elIda) therefore, aartlawlnto oeneoatratieae will fcawe to b* kept bale* 1*7 ai>bP in order to aolntala tho land level below 0,19 aAr, In unwary, aereury ohowld anwao n preblea la spraying tho subjoet pnlata, anO land present* a problaa only with tho 8&-Q51 prlaor wh*r*,tho partial* oonoontratlaa will tew to bo .roduood froa 10 m/r (ootabllohed for inert partial#*) to 1*7 a|AP, MdStpob twmu xmiaxmnwe. onomumnmm N38419