GAO-10-748SP: Aviation and the Environment: Survey of Airport Officials on Airport Environmental Issues, an E-supplement to GAO-10-50

U.S. Government Accountability Office

Q40. Does your airport have any of the following systems to reduce emissions?

(Total Population)

	Percent	Number of respondents
a. Fueling or charging stations for alternative fuel vehicles	39.0	141
b. Underground hydrant systems	35.5	141
c. Loading bridges that supply aircraft with electrical power	48.2	141
d. Loading bridges that supply aircraft with pre-conditioned air	42.6	141
e. Other system to reduce emissions	16.3	141
f. None - Airport does not have system to reduce emissions.	31.9	141
g. No answer	7.1	141

Q40. Does your airport have any of the following systems to reduce emissions?

(Large and Medium Hubs)

	Percent	Number of respondents
a. Fueling or charging stations for alternative fuel vehicles	68.3	63
b. Underground hydrant systems	74.6	63
c. Loading bridges that supply aircraft with electrical power	93.7	63
d. Loading bridges that supply aircraft with pre-conditioned air	87.3	63
e. Other system to reduce emissions	27.0	63
f. None - Airport does not have system to reduce emissions.	1.6	63
g. No answer	0.0	63