1 “... can be exposed to a substance only when you come in contact with it. You may be exposed by breathing...”

2 “... can be exposed to a substance only when you come in contact with it. You may be exposed by breathing...”

3 “... to exposure. You can be exposed to a substance only when you come in contact with it. You may be exposed...”

4 “... to exposure. You can be exposed to a substance only when you come in contact with it. You may be exposed...”

5 “... to exposure. You can be exposed to a substance only when you come in contact with it. You may be exposed...”

6 “... to exposure. You can be exposed to a substance only when you come in contact with it. You may be exposed...”