SAVE MONEY ON TRAVEL DEALS

After Hurricane Katrina, the Federal Emergency Management Agency provided travel trailers, park models and mobile homes to Gulf Coast residents who had lost their homes.

The Centers for Disease Control and Prevention had the Lawrence Berkeley National Laboratory measured air formaldehyde concentrations in whole trailers and emissions from specific parts of each trailer, such as walls, floors, ceilings, tables and cabinets of four vacant, never-used trailers provided by FEMA.

Formaldehyde emissions from the four whole trailers studied ranged from 173 to 266 micrograms per meter per hour in the morning to 257 to 347 micrograms per meter per hour in the afternoon due to increasing temperatures.

"Construction materials that emit high concentrations of formaldehyde, when part of a relatively small structure that has poor ventilation, have the potential to produce elevated levels of formaldehyde in the indoor air", Michael McGeehin of the CDC said in a statement.

A previous study found the average level of formaldehyde in all FEMA trailer units was about 77 parts per billion -- a range of 3 ppb to 590 ppb. It was determined health could be affected at the levels seen in many of the trailers, the CDC said.

 BREAKING STORIES

Embers touch off fires along SoCal freeway

Photographer, pilot die in copter crash

Fire at Ohio farm kills 1,100 animals

More owners torching cars for insurance

Deep 6.2 quake rocks Bolivia

Police: Haider speeding before crash

Barker issues online thank-you to fans

Chemical leak spurs Pa. evacuation

Industrial waste sickens hundreds in China

Barker fashion line honors crash victims

6.1 quake hits British Virgin Islands

California brushfire destroys 200 acres

Wildfires can boost ozone pollution

Minor quake shakes Scottish highlands

Canadian military air crash kills 2

Deep magma controls eruption cycles

Barker: I'm thankful to be alive

Oil spill hearings resume after hurricanes

Craig had surgery after on-set mishap

Injured Qantas passengers may sue airline