Eucharia Oluchi Nwaichi is a Nigerian environmental biochemist, soil scientist and toxicologist. The NOAEL is determined or proposed by qualified personnel, often a pharmacologist or a toxicologist. The next defense witness was toxicologist Michael Henson, a tech operations officer at Pacific Toxicology. FBI forensic toxicologist found no toxins in the hair from Caylee Anthony's skull. An autopsy by William McNalley, coroner's toxicologist, showed that Nitti's blood alcohol level was 0.23. "Chironex fleckeri" was named after North Queensland toxicologist and radiologist Doctor Hugo Flecker. Next called to testify was Dan Anderson, chief toxicologist at the coroner's office. After graduating, she worked as a toxicologist at the San Diego County medical examiner's office. Toxicologist Dan Anderson testified that Demerol was detected in Jackson's system. Riki Ott (born August 8, 1954) is a marine toxicologist and activist in Cordova, Alaska. In Britain, the toxicologist Alfred Swaine Taylor reported the disease in a hatmaker in 1864. Kambo has been described by a toxicologist as a risky, potentially life-threatening procedure.