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One of the most acutely toxic indoor air contaminants is carbon monoxide (CO), a colourless and odourless gas that is a by-product of incomplete combustion. Carbon monoxide may be emitted from tobacco smoke and generated from malfunctioning fuel burning stoves (wood, kerosene, natural gas, propane) and fuel burning heating systems (wood, oil ...
Carbon monoxide 8 hours 9 ppm Nitrogen dioxide 1 hour 0.12 ppm 1 year 0.03 ppm Ozone 1 hour 0.10 ppm 4 hours 0.08 ppm Sulfur dioxide 1 hour 0.20 ppm 1 day 0.08 ppm 1 year 0.02 ppm Lead 1 year 0.50 μg/m 3: PM 10 1 day 50 μg/m 3: 1 year 25 μg/m 3: PM 2.5 1 day 25 μg/m 3: 1 year 8 μg/m 3
Carbon monoxide (CO): The EPA set the first NAAQS for carbon monoxide in 1971. The primary standard was set at 9 ppm averaged over an 8-hour period and 35 ppm over a 1-hour period. [10] The majority of CO emitted into the ambient air is from mobile sources.
Without proper ventilation, carbon monoxide can be lethal at concentrations of 1000 ppm (0.1%). However, at several hundred ppm, carbon monoxide exposure induces headaches, fatigue, nausea, and vomiting. Carbon monoxide binds with hemoglobin in the blood, forming carboxyhemoglobin, reducing the blood's ability to transport oxygen.
Make sure to install extra carbon monoxide detectors 5 to 20 feet from sources of CO gas, including the stove, dryer, or furnace, and follow the manufacturer's guidelines for specific ...
One recognized pollutant is carbon monoxide, CO, which the NAAQOs have set the desired levels as previously mentioned. For CO, the maximum desirable level over one hour is 13 ppm and 5 ppm over eight hours, the maximum acceptable level is 30 ppm over one hour and 13 ppm over eight hours, and finally the maximum tolerable level is 17.4 ppm over ...
For example, the United States Clean Air Act identifies ozone, particulate matter, carbon monoxide, nitrogen oxides (NO x), sulfur dioxide (SO 2), and lead (Pb) as "criteria" pollutants requiring nationwide regulation. [1] EPA has also identified over 180 compounds it has classified as "hazardous" pollutants requiring strict control. [2]
Gas leaks can also release carbon monoxide, another dangerous gas that can affect your health. Symptoms of carbon monoxide poisoning include: Tiredness. Nausea and dizziness. Headache. Chest or ...
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