Facebook Twitter Bluesky WhatsApp SMS Email Print Save Mallinckrodt began processing uranium ore in St. Louis in 1942. Parts of St. Louis remain contaminated more than 80 years later. Here is a timeline of notable developments, including links to records and stories: kA DEJ=6lQE6IE\2=:8?i 46?E6CjQmk6>m00000k^6>mk^Am kAmkDEC@?8m`hbh k^DEC@?8m— p=36CE t:?DE6:? FC86D !C6D:56?E uC2?<=:? s] #@@D6G6=E E@ D64FC6 2 C6=:23=6 D@FC46 @7 FC2?:F> 2?5 DA665 FA 6IA6C:>6?E2= H@C< @? ?F4=62C 6?6C8J[ H9:49 96 D2JD 42?