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.
Forensic Chemist Salary. (United States). The average pay for a Forensic Chemist is $50,781 per year. People in this job generally don't have more than 20 years' experience. For the first five to ten years in this position, pay increases sharply, but any additional experience does not have a big effect on pay. $38,514 - $74,020.