There is no dBA curve given as threshold of human hearing. dBA has absolutely noting to do with sone, or with phons, or sound pressure level in dB. 60 phons means as loud as a pure 1000 Hz tone with a level of 60 dB..
According to Simplyhired.com, the average salary for a forensic toxicologist is $74,000 per year. Those who are just starting their careers will most likely earn a salary in the $60,000 range. Forensic toxicologists who have specialized training and experience can earn an annual salary of $100,000 or more.
The salary for forensic investigators is $24.75 per hour or $51,480 per year, with the bottom 10 percent making $15.59 or $32,420 and the top 10 percent earning $40.51 or $84,260.This is according to the Bureau of Labor Statistics as of May 2009.f they work for large crime labs, they may specialize in areas such as toxicology, biology, firearms, documents or chemistry. A bachelor's degree in a forensic science is the minimum requirement.