"I was willing to do anything," said Nungesser, 74, a retired chemical operator from Philadelphia.
In December 1958, during a process of purifying plutonium at Los Alamos, a critical mass was formed in a mixing vessel, which resulted in the death of a chemical operator named Cecil Kelley.
As an example, a case study concerning with optimal economical (maximization of the net profit), environmental (minimization of VOC emissions) and social (maximization of the number of chemical operators' jobs) design of the biodiesel production from soybean oil is presented.
Instead, the proposal calls for "voluntary guidance to make chemical operators aware of safer technology, processes, and alternative solutions".
This study showed that mean PFOS serum concentrations for cell and chemical operators were 2.90 μg/mL (geometric mean = 1.97 μg/mL; range, 0.33 6.84 μg/mL) and 1.78 μg/mL (geometric mean = 1.48 μg/mL; range, 0.47 7.26), respectively.
Based on their work history records, their lifetime usual jobs at either the 3M Decatur or Cottage Grove facility were categorized as electrochemical fluorination cell operators (n = 3), chemical operators (n = 6), maintenance workers (n = 5), foremen (n = 6), laboratory technicians (n = 3), and other (n = 2: warehouseman and engineer).
His father is a chemicals operator at International Flavors and Fragrances in South Brunswick, N.J., where he mixes flavors that go into beverages and food products.
Viktor Seryodkin, 50, a chemical equipment operator, represented one pole in the debate.
"I'm upset, because it's my livelihood and because it's a responsible company," said Pete Gallagher, a senior chemical process operator and 27-year Nepera employee.
Dryden, 59, said: "I had a wonderful job as a chemical process operator at Johnson Matthey that fulfilled my financial, social and educational needs and development … [but] I had become sensitised to materials that I had to work with.
A structural representation (referred to as the chemical species/conversion operator) is introduced.
