For convenience, my conclusions are repeated here:
1. Citing the risk assessment paradigm and risk assessment methodology set forth by the National Academy of Sciences in 1983, Dr. Rodricks erroneously concludes that prior to it ceasing use of Aroclor 1242 in its CCP in 1971, NCR knew that PCBs from its products were at that time posing serious environmental and human health risks. It is implausible to opine that NCR ought to have anticipated not only regulatory decisions, but an entire regulatory methodology for assessment of risks associated with environmental exposure levels to chemicals that did not even exist until 1976, the process that led to the 1983 NAS risk assessment paradigm. The fact that NCR had phased out Aroclor 1242 from its …show more content…
Dr. Rodricks asserts that NCR was slow in replacing Aroclor 1242, despite NCR having what he considers sufficient knowledge that it was harmful to the environment. However, the evidence suggests that NCR’s decision to replace Aroclor 1242 was a proactive and responsible step. On reaching this decision, it promptly commissioned Hill Top to conduct additional toxicity studies to ensure that the replacement material (MIPB) would not be harmful. A battery of tests was conducted in humans and animals to assess potential occupational, environmental, and end-user safety. NCR’s actions regarding the replacement material were consistent with proper product