1.   Hospitals, project managers revealed the findings of samples taken since tunnel toll takers began complaining early last month of noxious odors.

2.   Anaerobic bacteria lodge in these crevices, where they ferment proteins and give off noxious odors.

3.   A noxious odor that caused eye and throat irritations and led to respiratory problems forced workers to evacuate their office four times in the past month.

4.   It may have absorbed detergents or chemicals that can emit noxious odors when burned.

5.   What you should never do is crush ladybugs indoors, because their fluids stain and have a noxious odor.

6.   But fire crews later said rotting food in a container with a broken refrigeration unit was to blame for the noxious odor.

7.   Firemen in protective clothing and gas masks went into the Kamioka subway station in Yokohama to investigate the source of a noxious odor noticed by passers-by.

8.   Investigators have not traced the source of noxious odors in either incident, the spokesman said.

9.   Investigators have not determined the source of the noxious odors and do not know whether they are related to Aum Shinri Kyo.

10.   Noxious odor spread from the area, according to witnesses in the area.