1.   In humans, malignant melanoma - a cancer of the cells containing skin pigment - is a particular hazard of excess sunbathing.

2.   Steep stairs can present a particular hazard to older people.

3.   It was a particular hazard of the bay.

4.   Scientists said that the microbial life that has been revived poses no particular hazard for the modern era.

5.   Stepgrandchildren and how a mother-in-law relates to them can pose a particular hazard on the road to a good in-law relationship.

6.   The phenomenon appears to create no particular hazard, scientists said, and happens too close to the surface to trigger any earthquakes.

7.   Tire fires are a particular environmental hazard.