Carbon monoxide – level of toxicity
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The LC50 for carbon monoxide was found to be: 2069 mg/m3； According to \"Table 1\" in GB5044, the LC50 is 2000~
Although the toxicity of carbon monoxide is not the highest, its hazards are greater than those of toxic substances such as chlorine and hydrogen sulfide; this is mainly because carbon monoxide is colorless and odorless, making it easier for people to be exposed to it, whereas chlorine is colored and hydrogen sulfide has an odor