This is the US Dollar (USD) to South African Rand (ZAR) exchange rate history summary page, detailing 180 days of USD ZAR historical data from Thursday 16/04/2015 to Sunday 11/10/2015. Highest: 14.0681 ZAR on 28 Sep 2015.
Carbon monoxide (CO) is a colorless, odorless deadly gas. Because you can't see, taste, or smell it, carbon monoxide can kill you before you know it's there.Everyone is at risk for carbon monoxide poisoning.arbon monoxide is a by-product of combustion, present whenever fuel is burned. It is produced by common home appliances, such as gas or oil furnaces, gas refrigerators, gas clothes dryers, gas ranges, gas water heaters or space heaters, fireplaces, charcoal grills, and wood burning stoves.
Carbon Monoxide (CO). Guide. A carbon monoxide blood test is used to detect carbon monoxide poisoning. Poisoning can happen if you breathe air that contains too much carbon monoxide (CO). This gas has no color, odor, or taste, so you can't tell when you are breathing it.