Document oe3pMQxMq0qxKENm2mLarNNRE

Monsanto mo ,n,m. Lo^oN, Wllllam H. Hunt - Medical u.ct *ErcCNCL April 29, 1970 Aroclors - 3 Generation Rat Reproduction and Pish Toxicity "ro : R.E. Kelly, M.D./E.P* Wheeler A visit to Industrial Bio-Test laboratories, Inc., April 28, 1970 revealed the following progress to date of this study: _ ft/tka** The first litters of F*>were OK for 1242. However, the females ^ for PgB (second time around) failed to become pregnant at the ('txe'"rr 100 ppm level. The other two levelB were OK. Only 1 female [> a* J had pups which are now 12 days old. As a matter of fact only 2 or 3 of the 16 females are pregnant and they haventt delivered as yet. It is planned to remate these females for 1 week to see what will develop. Regarding the fish toxicity Btudles (catfish and bluegills) the time scheduled will be 2 to 3 weeks behind because doses which were believed to be OK produced 100^ kill. __ At levels of 1 to 10 ppm for both 1242 and 1254, for 50 fish per level, all died. For 1260 at levels of 10 and 100 ppm there were a few survivors l at 10 but all were dead at 100 ppm. ~~ 1 srtf r-L rU. w A? \r/ jk.\*- J*~L*~*y . 7ZL "Truer? }1U&- *4 ^ an jt *&. ^ F/ Jr y /<jt ^-1- '* F\. 0 + 'Jr f3 Ft, B William H. Hunt, Ph.D, SuMarut. N.0 V. II.| TOWOLDMONOQ46104