Natural gas tens of millions of structures that use the fuel, the individual risk of using natural gas is very low. Natural gas heating systems may cause carbon monoxide poisoning if unvented or poorly vented. In 2011, natural gas furnaces, space heaters, water heaters and stoves were blamed for 11 carbon monoxide deaths in the US. Another 22 deaths were attributed to appliances running on liquified petroleum gas, and 17 deaths on gas of unspecified type. Improvements in natural gas furnace designs have greatly reduced CO poisoning concerns. Detectors are also available that warn of carbon monoxide and/or explosive gas (methane, propane,
Natural gas in Ukraine price. On 9 January 2014 Naftogaz and Russia's Gazprom signed a supplement to the Russian-Ukrainian gas contract, setting the price of natural gas for Ukraine in the first quarter of 2014 at $268.5 per 1,000 cubic meters. Ukraine remains the main transit route for Russian natural gas sold to Europe, which earns Ukraine about $3 billion a year in transit fees, making it the country’s most lucrative export service. Following Russia's launch of the Nord Stream pipeline, which bypasses Ukraine, gas transit volumes have been steadily decreasing. In 2004 more than 120 bcm of Russian gas was transported through Ukraine;