Oxygen therapy. Oxygen therapy, also known as supplemental oxygen, is the use of oxygen as a medical treatment. This can include for low blood oxygen, carbon monoxide toxicity, cluster headaches, and to maintain enough oxygen while inhaled anesthetics are given.
1 According to Homeadvisor.com, the average cost of cleaning a drain is $251. 2  Homewyse.com places the average cost of clearing a sewer between $142.34 and $157.55 per sewer line. Most jobs, on average, should not be any more than $300. 2  However, there can be complex jobs that require video inspections and chemicals that can cost more than $300 or more. 3  According to Homeadvisor.com, the average cost of cleaning a drain is $251.
Since the first studies of the pollution problem began in early 1980s, the cleanup has cost $210 million, including $65 million from the EPA and $145 million from the chemical company Rhone Poulenc, corporate successor of the big mine operators.