(Adds airport statement) (.)

DOHA, Aug 28 (Reuters) - Qatar's government will levy a new airport tax on passengers from Tuesday as the country seeks new revenue streams amid falling oil prices.

Every passenger leaving Qatar from Doha's Hamad International Airport, including transit passengers, will be charged 35 riyals ($9.61) for using airport facilities, according to a statement by the airport.

The charge will apply to tickets issued after Aug. 30 and for any travel starting on Dec. 1 onwards and would be used to "further increase the airport's capacity and invest in new infrastructure", the statement said.

Airport fees, while common elsewhere in the world, have until recently been avoided by Gulf states as they seek to gain a competitive advantage for business and become regional hubs.

Some 1.33 million passengers travelled through Hamad International Airport in June.

Airports in the United Arab Emirates announced similar taxes earlier this year. Interest rates are rising in the Gulf as low oil prices pressure governments' finances, so Qatar has been looking at ways other than borrowing to fund its projects, including raising local gasoline prices. urn:newsml:reuters.com:*:nL5N17T2ZW

Qatar has said it expects to post a deficit of 46.5 billion riyals ($12.8 billion) in 2016, its first in 15 years, and to run a deficit for at least three years as low natural gas and oil prices weigh on its revenues as it prepares to host the soccer World Cup in 2022.

(Reporting by Tom Finn; editing by Susan Thomas) ((Tom.Finn@thomsonreuters.com;))