![Sample our Environment & Sustainability journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5935/TOC-Subject-Sample-2021-Environment-Sustainability.jpg"})
Abstract
Human volunteers were exposed to carbon monoxide at concentrations ranging from 1 to 1,000 ppm for 0.50 to 24 hours. Carboxyhemoglobin (COHb) levels greater than 20% produced changes in the visual evoked response similar to those previously described in animals. The amplitude of the 2–3–4 wave complex was increased and was accompanied by a negative-going shift in the 5a-6 waves. Carboxyhemoglobin levels approaching 33% did not alter gross spontaneous electroencephalographic activity.