Document xjy71dYEGmq1Lmy8GRRv47pNg
LEAD INDUSTRIES ASSOCIATION
60 East 42nd. Street ` ' New York 17, N. Y.
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llitjCLATIONS OCPAHTMENT
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,!* Lyaan i*, Hunter, views fraaidanl Bennett* o
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.,****,;lfro8rthe chcmicalpoint-of-viov, there la
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pronounced differencebetween .the solubility of' lead ohromatc and ` .
such letd salts &a the basic carbonate und the acetate, nevertheless, , '
this purely ^chemical picture might, not apply if these compounds. enter. < '%*>
..the. human.-Pbo.odyo*rCI//'^' V:'n'V,%. j .'. ^
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It' is .well, icnwn.-that..-^jaylinsoluble.-cojapounds, for" ....... ,,. .instance .silristt^sBddasWsto^i^V-.^otoi*--. thebodysad .remain there ,-.fox^
considoratio periods of
apparently without effect; Yet the 'y'
5 body tissues c?n act itpon the,*v slowly and either convert them into a
' hasardc'-s form, or liberate other hazardous empeunda from them, ; -:f ~v
There has, && yet, boon no adequate investigation of load chromate- ' ;
and eiinilar f''insolublM lo^d rhalts;,to prove -that this -cannot occur,,
In particular, there hm been no study isade which vs could use to
combat the clain that load ehrori&t pigments should be considered
is '-a imilar'-ito''
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i laaooiation* vdiich wroteV
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than as par eont loud* We have
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tc* the problast of lead chronaie butj unfortunately, is tfc abaenee
of adequate information Wo do nob!Jfooi that, we mb advoeaie "i 1Y7
epeeiflc raodifieatlon of tho standard.at tbs prosent tine.
Yours slnooroly,
John H. "Poulgor* K*D. ' '^Modleai-lAdvlsar -^U^i -; ^Toxioologj. and Borens leilodfe!
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