Table 6. Shows key test in the differentiation of the virdidans streptococci. Most species can only be identified to viridans species group. The VP test aids in the identification and differentiation of the viridans streptococcal species and is a key reaction for the S. anginosus group.
Air Traffic Controller Salary. The average pay for an Air Traffic Controller is $84,815 per year. Experience has a moderate effect on income for this job. $38,929 - $148,967.
The typical salary for a NAV Canada Air Traffic Controller ranges from $70,941-$120,611, with an average salary of $97,837. Salaries estimates based on 4 salary submitted anonymously to Glassdoor by NAV Canada Air Traffic Controller employees. 1  Salaries by Job. 2  Salaries by Company.