â The presence of marijuana is detected by a drug test through the presence of the active chemical THC or Tetrahydrocannabinol. Technically, what is detected is known as THC-COOH (11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid).
1 Average Riding Instructor Salary: Independent riding instructors typically charge an hourly rate for services but on average earn about $35,000 to $39,000 per year.
Education. Salaries for personal trainers increase with education, with those having only a high school diploma making the lowest wages. They averaged $22.14 per hour, or $45,516 per year full-time; and $22.79 per hour, or $19,011 per year part-time, with almost 17 hours of work per week.hey watch him perform an exercise, point out correct techniques to minimize injury and motivate him to make progress. Personal trainers averaged a full-time income of $25.71 per hour or $53,323 per year, according to the 2010 salary survey from the American Council on Exercise.